Check Uncheck (Select unselect) CheckBox in GridView using jQuery Ajax in ASP.Net

Hi tex,

Check this example. Now please take its reference and correct your code.

HTML

<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script type="text/javascript">
    $(function () {
        $.ajax({
            type: "POST",
            url: "Default.aspx/GetCustomers",
            data: '{}',
            contentType: "application/json; charset=utf-8",
            dataType: "json",
            success: OnSuccess,
            failure: function (response) {
                alert(response.d);
            },
            error: function (response) {
                alert(response.d);
            }
        });
    });
    var row;
    function OnSuccess(response) {
        var xmlDoc = $.parseXML(response.d);
        var xml = $(xmlDoc);
        var trans = xml.find("trans");
        if (row == null) {
            row = $("[id*=gvTransaction] tr:last-child").clone(true);
        }
        $("[id*=gvTransaction] tr").not($("[id*=gvTransaction] tr:first-child")).remove();
        if (trans.length > 0) {
            $.each(trans, function () {
                $("td", row).eq(0).html($(this).find("t_id").text());
                $("td", row).eq(1).html($(this).find("t_debit").text());
                $("td", row).eq(2).html($(this).find("t_debit_dinar").text());
                $("td", row).eq(3).html($(this).find("t_debit_fils").text());
                $("td", row).eq(4).html($(this).find("t_credit").text());
                $("td", row).eq(5).html($(this).find("t_credit_dinar").text());
                $("td", row).eq(6).html($(this).find("t_credit_fils").text());
                $("td", row).find('[id*=ch_transfer]').attr('checked', $(this).find("t_transfer").text() == "1" ? true : false);
                $("[id*=gvTransaction]").append(row);
                row = $("[id*=gvTransaction] tr:last-child").eq(0).clone(true);
            });
        }
    }
</script>
<asp:GridView ID="gvTransaction" runat="server" ShowHeaderWhenEmpty="true" AutoGenerateColumns="false"
    ShowHeader="true">
    <Columns>
        <asp:TemplateField HeaderText="No." ItemStyle-BackColor="Transparent" ControlStyle-BackColor="Transparent"
            ItemStyle-HorizontalAlign="Center">
            <ItemTemplate>
                <asp:Label ID="lbSeq" Value='<%# Eval("t_id") %>' runat="server" ItemStyle-Width="1%" />
            </ItemTemplate>
        </asp:TemplateField>
        <asp:TemplateField HeaderText="Debit" ItemStyle-BackColor="Transparent" ControlStyle-BackColor="Transparent"
            ItemStyle-Width="29%">
            <ItemTemplate>
                <asp:Label ID="lb_debit" runat="server" Text='<%# Eval("t_debit") %>'></asp:Label>
            </ItemTemplate>
        </asp:TemplateField>
        <asp:TemplateField HeaderText="JD" ItemStyle-BackColor="Transparent" ControlStyle-BackColor="Transparent"
            ItemStyle-Width="10%" ItemStyle-HorizontalAlign="Right">
            <ItemTemplate>
                <asp:Label ID="lbdebit_dinar" runat="server" Text='<%# Eval("t_debit_dinar") %>'></asp:Label>
            </ItemTemplate>
        </asp:TemplateField>
        <asp:TemplateField HeaderText="Fils" ItemStyle-BackColor="Transparent" ControlStyle-BackColor="Transparent"
            ItemStyle-Width="10%" ItemStyle-HorizontalAlign="Right">
            <ItemTemplate>
                <asp:Label ID="lbdebit_pister" runat="server" Text='<%# Eval("t_debit_fils") %>'></asp:Label>
            </ItemTemplate>
        </asp:TemplateField>
        <asp:TemplateField HeaderText="Credit" ItemStyle-BackColor="Transparent" ControlStyle-BackColor="Transparent"
            ItemStyle-Width="29%">
            <ItemTemplate>
                <asp:Label ID="lb_credit" runat="server" Text='<%# Eval("t_credit") %>'></asp:Label>
            </ItemTemplate>
        </asp:TemplateField>
        <asp:TemplateField HeaderText="JD" ItemStyle-BackColor="Transparent" ControlStyle-BackColor="Transparent"
            ItemStyle-Width="10%" ItemStyle-HorizontalAlign="Right">
            <ItemTemplate>
                <asp:Label ID="lbcredit_dinar" runat="server" Text='<%# Eval("t_credit_dinar") %>'></asp:Label>
            </ItemTemplate>
        </asp:TemplateField>
        <asp:TemplateField HeaderText="Fils" ItemStyle-BackColor="Transparent" ControlStyle-BackColor="Transparent"
            ItemStyle-Width="10%" ItemStyle-HorizontalAlign="Right">
            <ItemTemplate>
                <asp:Label ID="lbcredit_pister" runat="server" Text='<%# Eval("t_credit_fils") %>'></asp:Label>
            </ItemTemplate>
        </asp:TemplateField>
        <asp:TemplateField HeaderText="Transfer" ItemStyle-BackColor="Transparent" ControlStyle-BackColor="Transparent"
            ItemStyle-Width="1%" ItemStyle-HorizontalAlign="Center">
            <ItemTemplate>
                <asp:CheckBox ID="ch_transfer" runat="server" onclick="return false;" />
            </ItemTemplate>
        </asp:TemplateField>
    </Columns>
</asp:GridView>

Code

C#

protected void Page_Load(object sender, EventArgs e)
{
    if (!IsPostBack)
    {
        this.BindDummyRow();
    }
}
private void BindDummyRow()
{
    System.Data.DataTable dummy = new System.Data.DataTable();
    dummy.Columns.Add("t_id");
    dummy.Columns.Add("t_debit");
    dummy.Columns.Add("t_debit_dinar");
    dummy.Columns.Add("t_debit_fils");
    dummy.Columns.Add("t_credit");
    dummy.Columns.Add("t_credit_dinar");
    dummy.Columns.Add("t_credit_fils");
    dummy.Columns.Add("t_transfer");
    dummy.Rows.Add();
    gvTransaction.DataSource = dummy;
    gvTransaction.DataBind();
}
[System.Web.Services.WebMethod]
public static string GetCustomers()
{
    return GetData().GetXml();
}
private static System.Data.DataSet GetData()
{
    System.Data.DataSet ds = new System.Data.DataSet();
    System.Data.DataTable dt = new System.Data.DataTable();
    dt.TableName = "trans";
    dt.Columns.Add("t_id");
    dt.Columns.Add("t_debit");
    dt.Columns.Add("t_debit_dinar");
    dt.Columns.Add("t_debit_fils");
    dt.Columns.Add("t_credit");
    dt.Columns.Add("t_credit_dinar");
    dt.Columns.Add("t_credit_fils");
    dt.Columns.Add("t_transfer");
    dt.Rows.Add(1, 1000, 1, 0, 2000, 1, 0, 1);
    dt.Rows.Add(2, 2000, 0, 1, 4000, 1, 0, 0);
    dt.Rows.Add(3, 3000, 1, 0, 6000, 0, 1, 0);
    dt.Rows.Add(4, 4000, 1, 1, 8000, 1, 1, 1);
    ds.Tables.Add(dt);
    return ds;
}

VB.Net

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

Private Sub BindDummyRow()
    Dim dummy As System.Data.DataTable = New System.Data.DataTable()
    dummy.Columns.Add("t_id")
    dummy.Columns.Add("t_debit")
    dummy.Columns.Add("t_debit_dinar")
    dummy.Columns.Add("t_debit_fils")
    dummy.Columns.Add("t_credit")
    dummy.Columns.Add("t_credit_dinar")
    dummy.Columns.Add("t_credit_fils")
    dummy.Columns.Add("t_transfer")
    dummy.Rows.Add()
    gvTransaction.DataSource = dummy
    gvTransaction.DataBind()
End Sub

<System.Web.Services.WebMethod()>
Public Shared Function GetCustomers() As String
    Return GetData().GetXml()
End Function

Private Shared Function GetData() As System.Data.DataSet
    Dim ds As System.Data.DataSet = New System.Data.DataSet()
    Dim dt As System.Data.DataTable = New System.Data.DataTable()
    dt.TableName = "trans"
    dt.Columns.Add("t_id")
    dt.Columns.Add("t_debit")
    dt.Columns.Add("t_debit_dinar")
    dt.Columns.Add("t_debit_fils")
    dt.Columns.Add("t_credit")
    dt.Columns.Add("t_credit_dinar")
    dt.Columns.Add("t_credit_fils")
    dt.Columns.Add("t_transfer")
    dt.Rows.Add(1, 1000, 1, 0, 2000, 1, 0, 1)
    dt.Rows.Add(2, 2000, 0, 1, 4000, 1, 0, 0)
    dt.Rows.Add(3, 3000, 1, 0, 6000, 0, 1, 0)
    dt.Rows.Add(4, 4000, 1, 1, 8000, 1, 1, 1)
    ds.Tables.Add(dt)
    Return ds
End Function

Screenshot