Check whether record exists in DataList in ASP.Net using C#

Hi riddleride,

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

HTML

Name : <asp:TextBox ID="txtSearch" runat="server"></asp:TextBox>
<br />
<asp:Button ID="btnSearch" runat="server" Text="Find" OnClick="btnfind_Click" />
<br />       
<br />
<asp:DataList ID="dlSearch" runat="server">
<ItemTemplate>
    <asp:Label ID="lblName" runat="server" Text='<%#Eval("Name") %>'></asp:Label>
</ItemTemplate>
</asp:DataList>
<br />
<asp:Label ID="lblSearch" runat="server" Text=""></asp:Label>

Namespaces

C#

using System.Data;

Code

protected void Page_Load(object sender, EventArgs e)
{
    if (!this.IsPostBack)
    {
        DataTable dt = new DataTable();
        dt.Columns.Add("Name", typeof(string));
        dt.Rows.Add("John Hammond");
        dt.Rows.Add("Mudassar Khan");
        dt.Rows.Add("Suzanne Mathews");
        dlSearch.DataSource = dt;
        dlSearch.DataBind();
        ViewState["Data"] = dt;
    }
}

protected void btnfind_Click(object sender, EventArgs e)
{
    DataTable dt = (DataTable)ViewState["Data"];
    string str = txtSearch.Text;
    DataRow[] result = dt.Select("Name='" + str + "'");
    if (result.Length > 0)
    {
        lblSearch.Text = "Record Exist";
    }
    else
    {
        lblSearch.Text = "Record is not exist";
    }
}

Screenshot