Display GridView and Repeater entered data in Preview page on Button click using C# and VB.Net in ASP.Net

simflex

SOLVED CLOSED ACTIVE ANSWERED
User: simflex
Posted: on Aug 04, 2017 10:59 PM
Forum: Data Controls
Answer: 1
Views: 3634
Sample Code: Download

Greetings again gurus,

I am once again apologizing for asking too many questions.

When users enter data into form (gridview, repeater, etc) and click to preview data, before, I was able to see the data in preview page even though the layout is bad but I was able to see data.

Since the fantastic modifications I received from the great Indresh, now when I click the preview data, entire page is blank.

Here is the link to latest help from Indresh.

http://www.aspforums.net/Threads/146992/Transfer-dynamically-generated-GridView-rows-to-dynamic-Repeater-with-value-on-Button-click-using-C-and-VBNet-in-ASPNet/

I don't know if there is any changes I needed to incorporate into the code that I am using preview.

Here is that code. Can you please tell me what I am missing?

private void SetRowData2()
    {
        int rowIndex = 0;
 
        if (ViewState["CurrentTable"] != null)
        {
            DataTable dt = (DataTable)ViewState["CurrentTable"];
            DataRow drCurrentRow = null;
            if (dt.Rows.Count > 0)
            {
                for (int i = 1; i <= dt.Rows.Count; i++)
                {
                    TextBox tbaircity = (TextBox)Repeater2.Items[rowIndex].FindControl("aircraftCity");
                    TextBox tbaircnty = (TextBox)Repeater2.Items[rowIndex].FindControl("aircraftcnty");
                    DropDownList tbairstate = (DropDownList)Repeater2.Items[rowIndex].FindControl("aircraftstate");
                    TextBox tbTextBox2 = (TextBox)Repeater2.Items[rowIndex].FindControl("aRegNo");
                    TextBox tbTextBox3 = (TextBox)Repeater2.Items[rowIndex].FindControl("aMake");
                    TextBox tbTextBox4 = (TextBox)Repeater2.Items[rowIndex].FindControl("aModelNo");
                    TextBox tbTextBox5 = (TextBox)Repeater2.Items[rowIndex].FindControl("aYRBuilt");
                    TextBox tbTextBox6 = (TextBox)Repeater2.Items[rowIndex].FindControl("aSN");
                    TextBox tbdatePurchased = (TextBox)Repeater2.Items[rowIndex].FindControl("txtdatePurchased");
                    RadioButtonList tbPurchaseType = (RadioButtonList)Repeater2.Items[rowIndex].FindControl("rblPurchaseType");
                    TextBox tbPrevOnwerName = (TextBox)Repeater2.Items[rowIndex].FindControl("txtPrevOnwerName");
                    TextBox tbprevAddr = (TextBox)Repeater2.Items[rowIndex].FindControl("txtprevAddr");
                    TextBox tbprevCity = (TextBox)Repeater2.Items[rowIndex].FindControl("txtprevCity");
                    DropDownList tbPrevState = (DropDownList)Repeater2.Items[rowIndex].FindControl("ddlPrevState");
                    TextBox tbprevzip = (TextBox)Repeater2.Items[rowIndex].FindControl("txtprevzip");
                    TextBox tbbuyername = (TextBox)Repeater2.Items[rowIndex].FindControl("txtbuyername");
                    TextBox tbbuyeraddress = (TextBox)Repeater2.Items[rowIndex].FindControl("txtbuyeraddress");
                    TextBox tbbuyercity = (TextBox)Repeater2.Items[rowIndex].FindControl("txtbuyercity");
                    DropDownList tbbuyerstate = (DropDownList)Repeater2.Items[rowIndex].FindControl("lblbuyerstate");
                    TextBox tbbuyerzip = (TextBox)Repeater2.Items[rowIndex].FindControl("txtbuyerzip");
                    TextBox tbdatesold = (TextBox)Repeater2.Items[rowIndex].FindControl("txtdatesold");
                    TextBox tbsalePrice = (TextBox)Repeater2.Items[rowIndex].FindControl("txtsalePrice");
                    TextBox tbdescription = (TextBox)Repeater2.Items[rowIndex].FindControl("txtDescription");
                    TextBox tbTextBox9 = (TextBox)Repeater2.Items[rowIndex].FindControl("aircraftCost");
                    TextBox tbBtwnTBO = (TextBox)Repeater2.Items[rowIndex].FindControl("hrsBtwnTBO");
                    TextBox tbOverhaul = (TextBox)Repeater2.Items[rowIndex].FindControl("hrsOverhaul");
                    RadioButtonList tbrbllastOverHaul = (RadioButtonList)Repeater2.Items[rowIndex].FindControl("rbllastOverHaul");
                    TextBox tbTotalOnAirFrm = (TextBox)Repeater2.Items[rowIndex].FindControl("TotOnAirFrm");
                    TextBox tbAvionics = (TextBox)Repeater2.Items[rowIndex].FindControl("txtavionics");
                    RadioButtonList tbissues = (RadioButtonList)Repeater2.Items[rowIndex].FindControl("rblIssues");
                    TextBox tbissuedetails = (TextBox)Repeater2.Items[rowIndex].FindControl("functionalIsses");
                    drCurrentRow = dt.NewRow();
 
                    drCurrentRow["RowNumber"] = i + 1;
                    dt.Rows[i - 1]["aircity"] = tbaircity.Text;
                    dt.Rows[i - 1]["aircnty"] = tbaircnty.Text;
                    dt.Rows[i - 1]["airstate"] = tbairstate.Text;
                    dt.Rows[i - 1]["aRegNo"] = tbTextBox2.Text;
                    dt.Rows[i - 1]["Make"] = tbTextBox3.Text;
                    dt.Rows[i - 1]["ModelNo"] = tbTextBox4.Text;
                    dt.Rows[i - 1]["YRBuilt"] = tbTextBox5.Text;
                    dt.Rows[i - 1]["SN"] = tbTextBox6.Text;
                    dt.Rows[i - 1]["txtdatePurchased"] = tbdatePurchased.Text;
                    dt.Rows[i - 1]["rblPurchaseType"] = tbPurchaseType.Text;
                    dt.Rows[i - 1]["rblPurchaseType"] = tbPurchaseType.Text;
                    dt.Rows[i - 1]["PrevOnwerName"] = tbPrevOnwerName.Text;
                    dt.Rows[i - 1]["prevAddr"] = tbprevAddr.Text;
                    dt.Rows[i - 1]["prevCity"] = tbprevCity.Text;
                    dt.Rows[i - 1]["PrevState"] = tbPrevState.Text;
                    dt.Rows[i - 1]["prevzip"] = tbprevzip.Text;
                    dt.Rows[i - 1]["buyername"] = tbprevzip.Text;
                    dt.Rows[i - 1]["buyeraddress"] = tbprevzip.Text;
                    dt.Rows[i - 1]["buyercity"] = tbprevzip.Text;
                    dt.Rows[i - 1]["buyerstate"] = tbprevzip.Text;
                    dt.Rows[i - 1]["buyerzip"] = tbprevzip.Text;
                    dt.Rows[i - 1]["datesold"] = tbprevzip.Text;
                    dt.Rows[i - 1]["salePrice"] = tbprevzip.Text;
                    dt.Rows[i - 1]["description"] = tbprevzip.Text;
                    dt.Rows[i - 1]["aCost"] = tbTextBox9.Text;
                    dt.Rows[i - 1]["BtwnTBO"] = tbBtwnTBO.Text;
                    dt.Rows[i - 1]["Overhaul"] = tbOverhaul.Text;
                    dt.Rows[i - 1]["rbllastOverHaul"] = tbrbllastOverHaul.Text;
                    dt.Rows[i - 1]["TotalOnAirFrm"] = tbBtwnTBO.Text;
                    dt.Rows[i - 1]["Avionics"] = tbAvionics.Text;
                    dt.Rows[i - 1]["rissues"] = tbAvionics.Text;
                    dt.Rows[i - 1]["issuedetails"] = tbAvionics.Text;
 
                    rowIndex += 1;
                }
                ViewState["CurrentTable"] = dt;
            }
        }
        else
        {
            Response.Write("ViewState is null");
        }
    }
 
//preview of data
 
    private void FillSummary()
    {
 
         SetRowData2();
 
        int rowIndex = 0;
 
        if (ViewState["CurrentTable"] != null)
        {
            ////Initialize datatable.
            DataTable ctable = ViewState["CurrentTable"] as DataTable;
 
            ////Lets start looping through the second datatable for aircraft schedule info. .
            if (ctable.Rows.Count > 0)
            {
                foreach (DataRow row in ctable.Rows)
                {
                    //Aircraft schedule
                    string acity = row.ItemArray[1] as string;
                    string acnty = row.ItemArray[2] as string;
                    string arstate = row.ItemArray[3] as string;
                    string Regno = row.ItemArray[4] as string;
                    string mfgmake = row.ItemArray[5] as string;
                    string mfgmodel = row.ItemArray[6] as string;
                    string yrbuilt = row.ItemArray[7] as string;
                    string sn = row.ItemArray[8] as string;
                    string dtepurchased = row.ItemArray[9] as string;
                    string rbPurchaseType = row.ItemArray[10] as string;
 
                    //Previous Onwer info
                    string PrevOnwerName = row.ItemArray[11] as string;
                    string prevAddr = row.ItemArray[12] as string;
                    string prevCity = row.ItemArray[13] as string;
                    string PrevState = row.ItemArray[14] as string;
                    string prevzip = row.ItemArray[15] as string;
 
                    //New buyer info
                    string buyername = row.ItemArray[16] as string;
                    string buyeraddress = row.ItemArray[17] as string;
                    string buyercity = row.ItemArray[18] as string;
                    string buyerstate = row.ItemArray[19] as string;
                    string buyerzip = row.ItemArray[20] as string;
                    string datesold = row.ItemArray[21] as string;
                    string salePrice = row.ItemArray[22] as string;
                    string decription = row.ItemArray[23] as string;
 
                    string cost = row.ItemArray[24] as string;
                    string hrsbtwn = row.ItemArray[25] as string;
                    string hrsSince = row.ItemArray[26] as string;
                    string LOverhaul = row.ItemArray[27] as string;
                    string totHrs = row.ItemArray[28] as string;
                    string avionics = row.ItemArray[29] as string;
                    string rissues = row.ItemArray[30] as string;
                    string issuedetails = row.ItemArray[31] as string;
 
                    //Preparing to preview user entries 
                    lblAircraftCity.Text += acity + "<br />";
                    lblAircraftcnty.Text += acnty + "<br />";
                    lAblircraftstate.Text += arstate + "<br />";
                    lblARegNo.Text += Regno + "<br />";
                    lblAMake.Text += mfgmake + "<br />";
                    lblAModelNo.Text += mfgmodel + "<br />";
                    lblAYRBuilt.Text += yrbuilt + "<br />";
                    lblASN.Text += sn + "<br />";
                    lblDatePurchased.Text += dtepurchased + "<br />";
                    if (rbPurchaseType != null)
                    { 
                        lblPurchType.Text += rbPurchaseType + "<br />";
                    }
                    lblFNamePrev.Text += PrevOnwerName + "<br />"; 
                    lblAddrPrev.Text += prevAddr + "<br />"; 
                    lblCityPrev.Text += prevCity + "<br />";
                    lblZipPrev.Text += prevzip + "<br />";
                    lblPurchOnwer.Text += buyername + "<br />";
 
                    lblPurchOnwer.Text += buyername + "<br />";
                    lblPurcAddr.Text += buyeraddress + "<br />";
                    lblPurcCity.Text += buyercity + "<br />";
                    Label1.Text += buyerstate + "<br />";
                    lblPurcZip.Text += buyerzip + "<br />";
                    lblDdatesold.Text += datesold + "<br />";
                    lblSalePrice.Text += salePrice + "<br />";
                    lblDescription.Text += decription + "<br />";
                    Label3.Text += rissues + "<br />";
                    lblfunctionalIsses.Text += issuedetails + "<br />";
 
                    lblAircraftCost.Text += cost + "<br />";
                    lblHrsBtwnTBO.Text += hrsbtwn + "<br />";
                    lblHrsOverhaul.Text += hrsSince + "<br />";
                    if (LOverhaul != null)
                    {
                        lblOverhaul.Text += LOverhaul + "<br />";
                    }
                        lblTotOnAirFrm.Text += totHrs + "<br />";
                    lblavionics.Text += avionics + "<br />";
                    if (rissues != null)
                    {
                        lblsitus.Text += rissues + "<br />";
                    }
                    lblfunctionalIsses.Text += issuedetails + "<br />";
                    rowIndex += 1;
                }
 
            }
        }

Download FREE API for Word, Excel and PDF in ASP.Net

Indresh

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Reply
ANSWER
User: Indresh
Replied: on Aug 05, 2017 03:32 AM
Report

Hi simflex,

I have created sample code which full-fill your requirement. So please refer the below code.

HTML

<form id="form1" runat="server">
<asp:ScriptManager ID="scriptManager" runat="server">
</asp:ScriptManager>
<asp:MultiView ID="myMultiView" runat="server">
    <asp:View ID="vwPersonalInfo" runat="server">
        <div>
            <table style="width: 100%; border: 1px solid black;">
                <tr>
                    <td style="width: 33.3%; border-collapse: collapse; white-space: nowrap;">
                        <asp:Repeater ID="Repeater2" runat="server">
                            <HeaderTemplate>
                                <table id="repeaterTable" style="border: 1px solid black;">
                            </HeaderTemplate>
                            <ItemTemplate>
                                <table style="width: 100%; border: 1px solid black;">
                                    <tr>
                                        <td style="width: 50%; border-collapse: collapse; border: 1px solid black; white-space: nowrap;">
                                            Registration "N" #:<asp:TextBox ID="aRegNo" Text="" Style="width: 270px; margin-left: 195px;"
                                                runat="server"></asp:TextBox>
                                        </td>
                                        <td style="text-align: center; border: 1px solid black;">
                                            AVIONICS AND EXTRA EQUIPMENT
                                        </td>
                                    </tr>
                                    <tr>
                                        <td style="width: 50%; border-collapse: collapse; border: 1px solid black; white-space: nowrap;">
                                            MFG. Name: (make):<asp:TextBox ID="aMake" Style="width: 270px; margin-left: 175px;"
                                                runat="server"></asp:TextBox>
                                        </td>
                                        <td style="width: 50%; text-align: center; border: 1px solid black;" rowspan="10">
                                            <asp:TextBox ID="txtavionics" runat="server" TextMode="MultiLine" Style="width: 100%;
                                                height: 700px;" class="form-control"></asp:TextBox>
                                        </td>
                                    </tr>
                                    <tr>
                                        <td style="width: 50%; border-collapse: collapse; border: 1px solid black; white-space: nowrap;">
                                            Model Name OR #::<asp:TextBox ID="aModelNo" Style="width: 270px; margin-left: 184px;"
                                                runat="server"></asp:TextBox>
                                        </td>
                                        <td style="width: 50%; text-align: center; border: 0px solid black;">
                                        </td>
                                    </tr>
                                    <tr>
                                        <td style="width: 50%; border-collapse: collapse; border: 1px solid black; white-space: nowrap;">
                                            Year Built:<asp:TextBox ID="aYRBuilt" Style="width: 270px; margin-left: 252px;" runat="server"></asp:TextBox>
                                        </td>
                                        <td style="width: 50%; text-align: center; border: 0px solid black;">
                                        </td>
                                    </tr>
                                    <tr>
                                        <td style="width: 50%; border-collapse: collapse; border: 1px solid black; white-space: nowrap;">
                                            Serial Number:<asp:TextBox ID="aSN" Style="width: 270px; margin-left: 219px;" runat="server"></asp:TextBox>
                                        </td>
                                        <td style="width: 50%; text-align: center; border: 1px solid black;">
                                        </td>
                                    </tr>
                                    <tr>
                                        <td style="width: 50%; border-collapse: collapse; border: 1px solid black; white-space: nowrap;">
                                            Date Purchased:<asp:TextBox ID="txtdatePurchased" Style="width: 270px; margin-left: 205px;"
                                                runat="server"></asp:TextBox>
                                        </td>
                                        <td style="width: 50%; text-align: center; border: 1px solid black;">
                                        </td>
                                    </tr>
                                    <tr>
                                        <td style="width: 50%; border-collapse: collapse; border: 1px solid black;">
                                            Purchased:<asp:RadioButtonList ID="rblPurchaseType" runat="server" ValidationGroup="stype"
                                                RepeatDirection="Horizontal" TextAlign="Right" Style="display: inline;">
                                                <asp:ListItem Text="New" />
                                                <asp:ListItem Text="Used" />
                                            </asp:RadioButtonList>
                                            <br />
                                            <asp:RequiredFieldValidator Style="color: #ff0000;" ID="RequiredFieldValidator1"
                                                ControlToValidate="rblPurchaseType" ErrorMessage="Please choose New or Used"
                                                ValidationGroup="stype" runat="server" />
                                        </td>
                                        <td style="text-align: center; border: 1px solid black;">
                                        </td>
                                    </tr>
                                    <tr>
                                        <td style="width: 50%; border-collapse: collapse; border: 1px solid black; white-space: nowrap;">
                                            Cost:<asp:TextBox ID="aircraftCost" Style="width: 270px; margin-left: 287px;" runat="server"></asp:TextBox>
                                        </td>
                                        <td style="text-align: center; border: 1px solid black;">
                                        </td>
                                    </tr>
                                    <tr>
                                        <td style="width: 50%; border-collapse: collapse; border: 1px solid black; white-space: nowrap;">
                                            Hours Between Overhauls(TBO):<asp:TextBox ID="hrsBtwnTBO" Style="width: 270px; margin-left: 90px;"
                                                runat="server"></asp:TextBox>
                                        </td>
                                        <td style="text-align: center; border: 1px solid black;">
                                        </td>
                                    </tr>
                                    <tr>
                                        <td style="width: 50%; border-collapse: collapse; border: 1px solid black; white-space: nowrap;">
                                            Hours Since Last OVerhaul:<asp:TextBox ID="hrsOverhaul" Style="width: 270px; margin-left: 127px;"
                                                runat="server"></asp:TextBox>
                                        </td>
                                        <td style="text-align: center; border: 1px solid black;">
                                        </td>
                                    </tr>
                                    <tr>
                                        <td style="width: 50%; border-collapse: collapse; border: 1px solid black; white-space: nowrap;">
                                            Last Overhaul:<asp:RadioButtonList ID="rbllastOverHaul" ValidationGroup="stype" runat="server"
                                                RepeatDirection="Horizontal" TextAlign="Right" Style="display: inline;">
                                                <asp:ListItem Text="Major" />
                                                <asp:ListItem Text="Top" />
                                            </asp:RadioButtonList>
                                            <br />
                                            <asp:RequiredFieldValidator Style="color: #ff0000;" ID="RequiredFieldValidator2"
                                                ControlToValidate="rbllastOverHaul" ErrorMessage="Please choose Major or Top"
                                                ValidationGroup="stype" runat="server" />
                                        </td>
                                        <td style="text-align: center; border: 1px solid black;">
                                        </td>
                                    </tr>
                                    <tr>
                                        <td style="width: 50%; border-collapse: collapse; border: 1px solid black; white-space: nowrap;">
                                            Total Hours On Airframe As of Jan. 1:<asp:TextBox ID="TotOnAirFrm" Style="width: 270px;
                                                margin-left: 58px;" runat="server"></asp:TextBox>
                                        </td>
                                        <td style="border: 1px solid black;">
                                            NOTE: Please submit a copy of your log book to substantiate T.B.O. and<br />
                                            airframe hours.
                                        </td>
                                    </tr>
                                    <tr>
                                        <td colspan="2">
                                            <asp:Button ID="BtnAdd2" Style="width: 150px;" runat="server" Text="Add" OnClick="ButtonAdd2_Click"
                                                CssClass="btnclass" />
                                            <asp:Button ID="btnDelete" Style="width: 120px;" runat="server" Text="Delete" 
                                                CssClass="btnclass" />
                                        </td>
                                    </tr>
                                </table>
                            </ItemTemplate>
                        </asp:Repeater>
                    </td>
                </tr>
            </table>
            <asp:Button Text="Preview" OnClick="OnPreview" runat="server" />
        </div>
    </asp:View>
    <asp:View ID="vwPreview" runat="server">
        <table style="width: 100%; border: 1px solid black;">
            <tr>
                <td style="width: 50%; border-collapse: collapse; border: 1px solid black; white-space: nowrap;">
                    Registration "N" #:<asp:Label ID="lblARegNo" Text="" Style="width: 270px; margin-left: 195px;"
                        runat="server"></asp:Label>
                </td>
                <td style="text-align: center; border: 1px solid black;">
                    AVIONICS AND EXTRA EQUIPMENT
                </td>
            </tr>
            <tr>
                <td style="width: 50%; border-collapse: collapse; border: 1px solid black; white-space: nowrap;">
                    MFG. Name: (make):<asp:Label ID="lblAMake" Style="width: 270px; margin-left: 175px;"
                        runat="server"></asp:Label>
                </td>
                <td style="width: 50%; text-align: center; border: 1px solid black;" rowspan="10">
                    <asp:TextBox ID="txtavionics" runat="server" TextMode="MultiLine" Style="width: 100%;
                        height: 700px;" class="form-control"></asp:TextBox>
                </td>
            </tr>
            <tr>
                <td style="width: 50%; border-collapse: collapse; border: 1px solid black; white-space: nowrap;">
                    Model Name OR #::<asp:Label ID="lblAModelNo" Style="width: 270px; margin-left: 184px;"
                        runat="server"></asp:Label>
                </td>
                <td style="width: 50%; text-align: center; border: 0px solid black;">
                </td>
            </tr>
            <tr>
                <td style="width: 50%; border-collapse: collapse; border: 1px solid black; white-space: nowrap;">
                    Year Built:<asp:Label ID="lblAYRBuilt" Style="width: 270px; margin-left: 252px;"
                        runat="server"></asp:Label>
                </td>
                <td style="width: 50%; text-align: center; border: 0px solid black;">
                </td>
            </tr>
            <tr>
                <td style="width: 50%; border-collapse: collapse; border: 1px solid black; white-space: nowrap;">
                    Serial Number:<asp:Label ID="lblASN" Style="width: 270px; margin-left: 219px;" runat="server"></asp:Label>
                </td>
                <td style="width: 50%; text-align: center; border: 1px solid black;">
                </td>
            </tr>
            <tr>
                <td style="width: 50%; border-collapse: collapse; border: 1px solid black; white-space: nowrap;">
                    Date Purchased:<asp:Label ID="lblDatePurchased" Style="width: 270px; margin-left: 205px;"
                        runat="server"></asp:Label>
                </td>
                <td style="width: 50%; text-align: center; border: 1px solid black;">
                </td>
            </tr>
            <tr>
                <td style="width: 50%; border-collapse: collapse; border: 1px solid black;">
                    Purchased:<asp:Label ID="lblPurchType" Text="text" runat="server" />
                    <br />
                </td>
                <td style="text-align: center; border: 1px solid black;">
                </td>
            </tr>
            <tr>
                <td style="width: 50%; border-collapse: collapse; border: 1px solid black; white-space: nowrap;">
                    Cost:<asp:Label ID="lblCost" Style="width: 270px; margin-left: 287px;" runat="server"></asp:Label>
                </td>
                <td style="text-align: center; border: 1px solid black;">
                </td>
            </tr>
            <tr>
                <td style="width: 50%; border-collapse: collapse; border: 1px solid black; white-space: nowrap;">
                    Hours Between Overhauls(TBO):<asp:Label ID="lblTBO" Style="width: 270px; margin-left: 90px;"
                        runat="server"></asp:Label>
                </td>
                <td style="text-align: center; border: 1px solid black;">
                </td>
            </tr>
            <tr>
                <td style="width: 50%; border-collapse: collapse; border: 1px solid black; white-space: nowrap;">
                    Hours Since Last OVerhaul:<asp:Label ID="OVerhaul" Style="width: 270px; margin-left: 127px;"
                        runat="server"></asp:Label>
                </td>
                <td style="text-align: center; border: 1px solid black;">
                </td>
            </tr>
            <tr>
                <td style="width: 50%; border-collapse: collapse; border: 1px solid black; white-space: nowrap;">
                    Last Overhaul:<asp:Label ID="lblLastOverhaul" Text="text" runat="server" />
                    <br />
                </td>
                <td style="text-align: center; border: 1px solid black;">
                </td>
            </tr>
            <tr>
                <td style="width: 50%; border-collapse: collapse; border: 1px solid black; white-space: nowrap;">
                    Total Hours On Airframe As of Jan. 1:<asp:Label ID="lblTotOnAirFrm" Style="width: 270px;
                        margin-left: 58px;" runat="server"></asp:Label>
                </td>
                <td style="border: 1px solid black;">
                    NOTE: Please submit a copy of your log book to substantiate T.B.O. and<br />
                    airframe hours.
                </td>
            </tr>
            <tr>
                <td colspan="2">
                    <asp:Button ID="BtnAdd2" Style="width: 150px;" runat="server" Text="Back" OnClick="onclickBack"
                        CssClass="btnclass" />
                </td>
            </tr>
        </table>
    </asp:View>
</asp:MultiView>
</form>

protected void Page_Load(object sender, EventArgs e)
{
    if (!IsPostBack)
    {
        this.SetInitialRow();
    }
}

private void SetInitialRow()
{
    myMultiView.ActiveViewIndex = 0;
    DataTable dt = new DataTable();
    DataRow dr = null;
    //Create DataTable columns
    dt.Columns.Add(new DataColumn("RowNumber", typeof(string)));
    dt.Columns.Add(new DataColumn("aRegNo", typeof(string)));
    dt.Columns.Add(new DataColumn("aMake", typeof(string)));
    dt.Columns.Add(new DataColumn("txtavionics", typeof(string)));
    dt.Columns.Add(new DataColumn("aModelNo", typeof(string)));
    dt.Columns.Add(new DataColumn("aYRBuilt", typeof(string)));
    dt.Columns.Add(new DataColumn("aSN", typeof(string)));
    dt.Columns.Add(new DataColumn("txtdatePurchased", typeof(string)));
    dt.Columns.Add(new DataColumn("rblPurchaseType", typeof(string)));
    dt.Columns.Add(new DataColumn("aircraftCost", typeof(string)));
    dt.Columns.Add(new DataColumn("hrsBtwnTBO", typeof(string)));
    dt.Columns.Add(new DataColumn("hrsOverhaul", typeof(string)));
    dt.Columns.Add(new DataColumn("rbllastOverHaul", typeof(string)));
    dt.Columns.Add(new DataColumn("TotOnAirFrm", typeof(string)));
    //Create Row for each columns
    dr = dt.NewRow();
    dr["RowNumber"] = 1;
    dr["aRegNo"] = string.Empty;
    dr["aMake"] = string.Empty;
    dr["txtavionics"] = string.Empty;
    dr["aModelNo"] = string.Empty;
    dr["aYRBuilt"] = string.Empty;
    dr["aSN"] = string.Empty;
    dr["txtdatePurchased"] = string.Empty;
    dr["rblPurchaseType"] = string.Empty;
    dr["aircraftCost"] = string.Empty;
    dr["hrsBtwnTBO"] = string.Empty;
    dr["hrsOverhaul"] = string.Empty;
    dr["rbllastOverHaul"] = string.Empty;
    dr["TotOnAirFrm"] = string.Empty;
    dt.Rows.Add(dr);
    //Store the DataTable in ViewState for future reference
    ViewState["CurrentTable1"] = dt;
    //Bind the Repeater with the DataTable
    Repeater2.DataSource = dt;
    Repeater2.DataBind();
}

private void AddNewRow2()
{
    int rowIndex = 0;
    if (ViewState["CurrentTable1"] != null)
    {
        DataTable dtCurrentTable = (DataTable)ViewState["CurrentTable1"];
        DataRow drCurrentRow = null;

        if (dtCurrentTable.Rows.Count > 0)
        {
            for (int i = 1; i <= dtCurrentTable.Rows.Count; i++)
            {

                TextBox txtaRegNo = (TextBox)Repeater2.Items[rowIndex].FindControl("aRegNo");
                TextBox txtaMake = ((TextBox)Repeater2.Items[rowIndex].FindControl("aMake"));
                TextBox txtaModelNo = ((TextBox)Repeater2.Items[rowIndex].FindControl("aModelNo"));
                TextBox txtaYRBuilt = ((TextBox)Repeater2.Items[rowIndex].FindControl("aYRBuilt"));
                TextBox txtaSN = ((TextBox)Repeater2.Items[rowIndex].FindControl("aSN"));
                TextBox txtdatePurchased = ((TextBox)Repeater2.Items[rowIndex].FindControl("txtdatePurchased"));
                RadioButtonList rbtlist1 = ((RadioButtonList)Repeater2.Items[rowIndex].FindControl("rblPurchaseType"));
                TextBox txtaircraftCost = ((TextBox)Repeater2.Items[rowIndex].FindControl("aircraftCost"));
                TextBox txthrsBtwnTBO = ((TextBox)Repeater2.Items[rowIndex].FindControl("hrsBtwnTBO"));
                TextBox txthrsOverhaul = ((TextBox)Repeater2.Items[rowIndex].FindControl("hrsOverhaul"));
                RadioButtonList rbtlist2 = ((RadioButtonList)Repeater2.Items[rowIndex].FindControl("rbllastOverHaul"));
                TextBox txtTotOnAirFrm = ((TextBox)Repeater2.Items[rowIndex].FindControl("TotOnAirFrm"));

                drCurrentRow = dtCurrentTable.NewRow();
                drCurrentRow["RowNumber"] = i + 1;
                dtCurrentTable.Rows[i - 1]["aRegNo"] = txtaRegNo.Text;
                dtCurrentTable.Rows[i - 1]["aMake"] = txtaMake.Text;
                dtCurrentTable.Rows[i - 1]["aModelNo"] = txtaModelNo.Text;
                dtCurrentTable.Rows[i - 1]["aYRBuilt"] = txtaYRBuilt.Text;
                dtCurrentTable.Rows[i - 1]["aSN"] = txtaSN.Text;
                dtCurrentTable.Rows[i - 1]["txtdatePurchased"] = txtdatePurchased.Text;
                dtCurrentTable.Rows[i - 1]["rblPurchaseType"] = rbtlist1.SelectedItem.Text;
                dtCurrentTable.Rows[i - 1]["aircraftCost"] = txtaircraftCost.Text;
                dtCurrentTable.Rows[i - 1]["hrsBtwnTBO"] = txthrsBtwnTBO.Text;
                dtCurrentTable.Rows[i - 1]["hrsOverhaul"] = txthrsOverhaul.Text;
                dtCurrentTable.Rows[i - 1]["rbllastOverHaul"] = rbtlist2.SelectedItem;
                dtCurrentTable.Rows[i - 1]["TotOnAirFrm"] = txtTotOnAirFrm.Text;
                rowIndex++;
            }

            dtCurrentTable.Rows.Add(drCurrentRow);
            ViewState["CurrentTable1"] = dtCurrentTable;
            Repeater2.DataSource = dtCurrentTable;
            Repeater2.DataBind();
        }
    }

    else
    {
        Response.Write("ViewState is null");
    }

    //Set Previous Data on Postbacks
    SetPreviousData2();
}

private void SetPreviousData2()
{
    int rowIndex = 0;
    if (ViewState["CurrentTable1"] != null)
    {
        DataTable dt = (DataTable)ViewState["CurrentTable1"];
        if (dt.Rows.Count > 0)
        {
            for (int i = 0; i < dt.Rows.Count; i++)
            {
                TextBox txtaRegNo = (TextBox)Repeater2.Items[rowIndex].FindControl("aRegNo");
                TextBox txtaMake = ((TextBox)Repeater2.Items[rowIndex].FindControl("aMake"));
                TextBox txtaModelNo = ((TextBox)Repeater2.Items[rowIndex].FindControl("aModelNo"));
                TextBox txtaYRBuilt = ((TextBox)Repeater2.Items[rowIndex].FindControl("aYRBuilt"));
                TextBox txtaSN = ((TextBox)Repeater2.Items[rowIndex].FindControl("aSN"));
                TextBox txtdatePurchased = ((TextBox)Repeater2.Items[rowIndex].FindControl("txtdatePurchased"));
                RadioButtonList rbtlist1 = ((RadioButtonList)Repeater2.Items[rowIndex].FindControl("rblPurchaseType"));
                TextBox txtaircraftCost = ((TextBox)Repeater2.Items[rowIndex].FindControl("aircraftCost"));
                TextBox txthrsBtwnTBO = ((TextBox)Repeater2.Items[rowIndex].FindControl("hrsBtwnTBO"));
                TextBox txthrsOverhaul = ((TextBox)Repeater2.Items[rowIndex].FindControl("hrsOverhaul"));
                RadioButtonList rbtlist2 = ((RadioButtonList)Repeater2.Items[rowIndex].FindControl("rbllastOverHaul"));
                TextBox txtTotOnAirFrm = ((TextBox)Repeater2.Items[rowIndex].FindControl("TotOnAirFrm"));

                txtaRegNo.Text = dt.Rows[i]["aRegNo"].ToString();
                txtaMake.Text = dt.Rows[i]["aMake"].ToString();
                txtaModelNo.Text = dt.Rows[i]["txtavionics"].ToString();
                txtaYRBuilt.Text = dt.Rows[i]["aModelNo"].ToString();
                txtaSN.Text = dt.Rows[i]["aYRBuilt"].ToString();
                txtdatePurchased.Text = dt.Rows[i]["aSN"].ToString();

                if (!string.IsNullOrEmpty(dt.Rows[i]["rblPurchaseType"].ToString()))
                {
                    rbtlist1.Items.FindByText(dt.Rows[i]["rblPurchaseType"].ToString()).Selected = true;
                }

                txtaircraftCost.Text = dt.Rows[i]["aircraftCost"].ToString();
                txthrsBtwnTBO.Text = dt.Rows[i]["hrsBtwnTBO"].ToString();
                txthrsOverhaul.Text = dt.Rows[i]["hrsOverhaul"].ToString();
                if (!string.IsNullOrEmpty(dt.Rows[i]["rbllastOverHaul"].ToString()))
                {
                    rbtlist2.Items.FindByText(dt.Rows[i]["rbllastOverHaul"].ToString()).Selected = true;
                }

                txtTotOnAirFrm.Text = dt.Rows[i]["TotOnAirFrm"].ToString();
                rowIndex++;
            }
        }
    }
}


protected void ButtonAdd2_Click(object sender, EventArgs e)
{
    AddNewRow2();
}

protected void OnPreview(object sender, EventArgs e)
{
    myMultiView.ActiveViewIndex = 1;
    FillSummary();
}

private void FillSummary()
{
    int rowIndex = 0;
    if (ViewState["CurrentTable1"] != null)
    {
        ////Initialize datatable.
        DataTable ctable = ViewState["CurrentTable1"] as DataTable;

        ////Lets start looping through the second datatable for aircraft schedule info.
        if (ctable.Rows.Count > 0)
        {
            for (int i = 1; i <= Repeater2.Items.Count; i++)
            {
                lblARegNo.Text = ((TextBox)Repeater2.Items[rowIndex].FindControl("aRegNo")).Text;
                lblAMake.Text = ((TextBox)Repeater2.Items[rowIndex].FindControl("aMake")).Text;
                lblAModelNo.Text = ((TextBox)Repeater2.Items[rowIndex].FindControl("aModelNo")).Text;
                lblAYRBuilt.Text = ((TextBox)Repeater2.Items[rowIndex].FindControl("aYRBuilt")).Text;
                lblASN.Text = ((TextBox)Repeater2.Items[rowIndex].FindControl("aSN")).Text;
                lblDatePurchased.Text = ((TextBox)Repeater2.Items[rowIndex].FindControl("txtdatePurchased")).Text;
                lblPurchType.Text = ((RadioButtonList)Repeater2.Items[rowIndex].FindControl("rblPurchaseType")).SelectedItem.Text;
                lblCost.Text = ((TextBox)Repeater2.Items[rowIndex].FindControl("aircraftCost")).Text;
                lblTBO.Text = ((TextBox)Repeater2.Items[rowIndex].FindControl("hrsBtwnTBO")).Text;
                OVerhaul.Text = ((TextBox)Repeater2.Items[rowIndex].FindControl("hrsOverhaul")).Text;
                lblLastOverhaul.Text = ((RadioButtonList)Repeater2.Items[rowIndex].FindControl("rbllastOverHaul")).SelectedItem.Text;
                lblTotOnAirFrm.Text = ((TextBox)Repeater2.Items[rowIndex].FindControl("TotOnAirFrm")).Text;
            }
        }
    }
}

protected void onclickBack(object sender, EventArgs e)
{
    myMultiView.ActiveViewIndex = 0;
}

Vb.Net

Protected Sub Page_Load(sender As Object, e As EventArgs)Handles Me.Load
	If Not IsPostBack Then
		Me.SetInitialRow()
	End If
End Sub

Private Sub SetInitialRow()
	myMultiView.ActiveViewIndex = 0
	Dim dt As New DataTable()
	Dim dr As DataRow = Nothing
	'Create DataTable columns
	dt.Columns.Add(New DataColumn("RowNumber", GetType(String)))
	dt.Columns.Add(New DataColumn("aRegNo", GetType(String)))
	dt.Columns.Add(New DataColumn("aMake", GetType(String)))
	dt.Columns.Add(New DataColumn("txtavionics", GetType(String)))
	dt.Columns.Add(New DataColumn("aModelNo", GetType(String)))
	dt.Columns.Add(New DataColumn("aYRBuilt", GetType(String)))
	dt.Columns.Add(New DataColumn("aSN", GetType(String)))
	dt.Columns.Add(New DataColumn("txtdatePurchased", GetType(String)))
	dt.Columns.Add(New DataColumn("rblPurchaseType", GetType(String)))
	dt.Columns.Add(New DataColumn("aircraftCost", GetType(String)))
	dt.Columns.Add(New DataColumn("hrsBtwnTBO", GetType(String)))
	dt.Columns.Add(New DataColumn("hrsOverhaul", GetType(String)))
	dt.Columns.Add(New DataColumn("rbllastOverHaul", GetType(String)))
	dt.Columns.Add(New DataColumn("TotOnAirFrm", GetType(String)))
	'Create Row for each columns
	dr = dt.NewRow()
	dr("RowNumber") = 1
	dr("aRegNo") = String.Empty
	dr("aMake") = String.Empty
	dr("txtavionics") = String.Empty
	dr("aModelNo") = String.Empty
	dr("aYRBuilt") = String.Empty
	dr("aSN") = String.Empty
	dr("txtdatePurchased") = String.Empty
	dr("rblPurchaseType") = String.Empty
	dr("aircraftCost") = String.Empty
	dr("hrsBtwnTBO") = String.Empty
	dr("hrsOverhaul") = String.Empty
	dr("rbllastOverHaul") = String.Empty
	dr("TotOnAirFrm") = String.Empty
	dt.Rows.Add(dr)
	'Store the DataTable in ViewState for future reference
	ViewState("CurrentTable1") = dt
	'Bind the Repeater with the DataTable
	Repeater2.DataSource = dt
	Repeater2.DataBind()
End Sub

Private Sub AddNewRow2()
	Dim rowIndex As Integer = 0
	If ViewState("CurrentTable1") IsNot Nothing Then
		Dim dtCurrentTable As DataTable = DirectCast(ViewState("CurrentTable1"), DataTable)
		Dim drCurrentRow As DataRow = Nothing

		If dtCurrentTable.Rows.Count > 0 Then
			For i As Integer = 1 To dtCurrentTable.Rows.Count

				Dim txtaRegNo As TextBox = DirectCast(Repeater2.Items(rowIndex).FindControl("aRegNo"), TextBox)
				Dim txtaMake As TextBox = DirectCast(Repeater2.Items(rowIndex).FindControl("aMake"), TextBox)
				Dim txtaModelNo As TextBox = DirectCast(Repeater2.Items(rowIndex).FindControl("aModelNo"), TextBox)
				Dim txtaYRBuilt As TextBox = DirectCast(Repeater2.Items(rowIndex).FindControl("aYRBuilt"), TextBox)
				Dim txtaSN As TextBox = DirectCast(Repeater2.Items(rowIndex).FindControl("aSN"), TextBox)
				Dim txtdatePurchased As TextBox = DirectCast(Repeater2.Items(rowIndex).FindControl("txtdatePurchased"), TextBox)
				Dim rbtlist1 As RadioButtonList = DirectCast(Repeater2.Items(rowIndex).FindControl("rblPurchaseType"), RadioButtonList)
				Dim txtaircraftCost As TextBox = DirectCast(Repeater2.Items(rowIndex).FindControl("aircraftCost"), TextBox)
				Dim txthrsBtwnTBO As TextBox = DirectCast(Repeater2.Items(rowIndex).FindControl("hrsBtwnTBO"), TextBox)
				Dim txthrsOverhaul As TextBox = DirectCast(Repeater2.Items(rowIndex).FindControl("hrsOverhaul"), TextBox)
				Dim rbtlist2 As RadioButtonList = DirectCast(Repeater2.Items(rowIndex).FindControl("rbllastOverHaul"), RadioButtonList)
				Dim txtTotOnAirFrm As TextBox = DirectCast(Repeater2.Items(rowIndex).FindControl("TotOnAirFrm"), TextBox)

				drCurrentRow = dtCurrentTable.NewRow()
				drCurrentRow("RowNumber") = i + 1
				dtCurrentTable.Rows(i - 1)("aRegNo") = txtaRegNo.Text
				dtCurrentTable.Rows(i - 1)("aMake") = txtaMake.Text
				dtCurrentTable.Rows(i - 1)("aModelNo") = txtaModelNo.Text
				dtCurrentTable.Rows(i - 1)("aYRBuilt") = txtaYRBuilt.Text
				dtCurrentTable.Rows(i - 1)("aSN") = txtaSN.Text
				dtCurrentTable.Rows(i - 1)("txtdatePurchased") = txtdatePurchased.Text
				dtCurrentTable.Rows(i - 1)("rblPurchaseType") = rbtlist1.SelectedItem.Text
				dtCurrentTable.Rows(i - 1)("aircraftCost") = txtaircraftCost.Text
				dtCurrentTable.Rows(i - 1)("hrsBtwnTBO") = txthrsBtwnTBO.Text
				dtCurrentTable.Rows(i - 1)("hrsOverhaul") = txthrsOverhaul.Text
				dtCurrentTable.Rows(i - 1)("rbllastOverHaul") = rbtlist2.SelectedItem
				dtCurrentTable.Rows(i - 1)("TotOnAirFrm") = txtTotOnAirFrm.Text
				rowIndex += 1
			Next

			dtCurrentTable.Rows.Add(drCurrentRow)
			ViewState("CurrentTable1") = dtCurrentTable
			Repeater2.DataSource = dtCurrentTable
			Repeater2.DataBind()
		End If
	Else

		Response.Write("ViewState is null")
	End If

	'Set Previous Data on Postbacks
	SetPreviousData2()
End Sub

Private Sub SetPreviousData2()
	Dim rowIndex As Integer = 0
	If ViewState("CurrentTable1") IsNot Nothing Then
		Dim dt As DataTable = DirectCast(ViewState("CurrentTable1"), DataTable)
		If dt.Rows.Count > 0 Then
			For i As Integer = 0 To dt.Rows.Count - 1
				Dim txtaRegNo As TextBox = DirectCast(Repeater2.Items(rowIndex).FindControl("aRegNo"), TextBox)
				Dim txtaMake As TextBox = DirectCast(Repeater2.Items(rowIndex).FindControl("aMake"), TextBox)
				Dim txtaModelNo As TextBox = DirectCast(Repeater2.Items(rowIndex).FindControl("aModelNo"), TextBox)
				Dim txtaYRBuilt As TextBox = DirectCast(Repeater2.Items(rowIndex).FindControl("aYRBuilt"), TextBox)
				Dim txtaSN As TextBox = DirectCast(Repeater2.Items(rowIndex).FindControl("aSN"), TextBox)
				Dim txtdatePurchased As TextBox = DirectCast(Repeater2.Items(rowIndex).FindControl("txtdatePurchased"), TextBox)
				Dim rbtlist1 As RadioButtonList = DirectCast(Repeater2.Items(rowIndex).FindControl("rblPurchaseType"), RadioButtonList)
				Dim txtaircraftCost As TextBox = DirectCast(Repeater2.Items(rowIndex).FindControl("aircraftCost"), TextBox)
				Dim txthrsBtwnTBO As TextBox = DirectCast(Repeater2.Items(rowIndex).FindControl("hrsBtwnTBO"), TextBox)
				Dim txthrsOverhaul As TextBox = DirectCast(Repeater2.Items(rowIndex).FindControl("hrsOverhaul"), TextBox)
				Dim rbtlist2 As RadioButtonList = DirectCast(Repeater2.Items(rowIndex).FindControl("rbllastOverHaul"), RadioButtonList)
				Dim txtTotOnAirFrm As TextBox = DirectCast(Repeater2.Items(rowIndex).FindControl("TotOnAirFrm"), TextBox)

				txtaRegNo.Text = dt.Rows(i)("aRegNo").ToString()
				txtaMake.Text = dt.Rows(i)("aMake").ToString()
				txtaModelNo.Text = dt.Rows(i)("txtavionics").ToString()
				txtaYRBuilt.Text = dt.Rows(i)("aModelNo").ToString()
				txtaSN.Text = dt.Rows(i)("aYRBuilt").ToString()
				txtdatePurchased.Text = dt.Rows(i)("aSN").ToString()

				If Not String.IsNullOrEmpty(dt.Rows(i)("rblPurchaseType").ToString()) Then
					rbtlist1.Items.FindByText(dt.Rows(i)("rblPurchaseType").ToString()).Selected = True
				End If

				txtaircraftCost.Text = dt.Rows(i)("aircraftCost").ToString()
				txthrsBtwnTBO.Text = dt.Rows(i)("hrsBtwnTBO").ToString()
				txthrsOverhaul.Text = dt.Rows(i)("hrsOverhaul").ToString()
				If Not String.IsNullOrEmpty(dt.Rows(i)("rbllastOverHaul").ToString()) Then
					rbtlist2.Items.FindByText(dt.Rows(i)("rbllastOverHaul").ToString()).Selected = True
				End If

				txtTotOnAirFrm.Text = dt.Rows(i)("TotOnAirFrm").ToString()
				rowIndex += 1
			Next
		End If
	End If
End Sub


Protected Sub ButtonAdd2_Click(sender As Object, e As EventArgs)
	AddNewRow2()
End Sub

Protected Sub OnPreview(sender As Object, e As EventArgs)
	myMultiView.ActiveViewIndex = 1
	FillSummary()
End Sub

Private Sub FillSummary()
	Dim rowIndex As Integer = 0
	If ViewState("CurrentTable1") IsNot Nothing Then
		'''/Initialize datatable.
		Dim ctable As DataTable = TryCast(ViewState("CurrentTable1"), DataTable)

		'''/Lets start looping through the second datatable for aircraft schedule info.
		If ctable.Rows.Count > 0 Then
			For i As Integer = 1 To Repeater2.Items.Count
				lblARegNo.Text = DirectCast(Repeater2.Items(rowIndex).FindControl("aRegNo"), TextBox).Text
				lblAMake.Text = DirectCast(Repeater2.Items(rowIndex).FindControl("aMake"), TextBox).Text
				lblAModelNo.Text = DirectCast(Repeater2.Items(rowIndex).FindControl("aModelNo"), TextBox).Text
				lblAYRBuilt.Text = DirectCast(Repeater2.Items(rowIndex).FindControl("aYRBuilt"), TextBox).Text
				lblASN.Text = DirectCast(Repeater2.Items(rowIndex).FindControl("aSN"), TextBox).Text
				lblDatePurchased.Text = DirectCast(Repeater2.Items(rowIndex).FindControl("txtdatePurchased"), TextBox).Text
				lblPurchType.Text = DirectCast(Repeater2.Items(rowIndex).FindControl("rblPurchaseType"), RadioButtonList).SelectedItem.Text
				lblCost.Text = DirectCast(Repeater2.Items(rowIndex).FindControl("aircraftCost"), TextBox).Text
				lblTBO.Text = DirectCast(Repeater2.Items(rowIndex).FindControl("hrsBtwnTBO"), TextBox).Text
				OVerhaul.Text = DirectCast(Repeater2.Items(rowIndex).FindControl("hrsOverhaul"), TextBox).Text
				lblLastOverhaul.Text = DirectCast(Repeater2.Items(rowIndex).FindControl("rbllastOverHaul"), RadioButtonList).SelectedItem.Text
				lblTotOnAirFrm.Text = DirectCast(Repeater2.Items(rowIndex).FindControl("TotOnAirFrm"), TextBox).Text
			Next
		End If
	End If
End Sub

Protected Sub onclickBack(sender As Object, e As EventArgs)
	myMultiView.ActiveViewIndex = 0
End Sub

I agree, here is the link: https://www.e-iceblue.com/Introduce/spire-office-for-net-free.html

Display GridView and Repeater entered data in Preview page on Button click using C# and VB.Net in ASP.Net

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