Open jQuery Modal Popup on Anchor Tag click in ASP.Net

Hi ramco1917,

Please refer below sample.

HTML

<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js"></script>
<link rel="stylesheet" href="https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.24/themes/smoothness/jquery-ui.css" />
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.24/jquery-ui.min.js"></script>
<asp:Repeater ID="rptData" runat="server">
    <ItemTemplate>
        <table>
            <tr>
                <td><asp:Literal runat="server" Text="<%# Convert.ToString(Container.ItemIndex + 1) %>"></asp:Literal></td>
                <td><a id="lnkModal" href='Default.aspx?id=<%#Eval("StudentID").ToString()%>'><%# Eval("Name") %></a></td>
            </tr>
        </table>
    </ItemTemplate>
</asp:Repeater>
<div id='dvDialog'></div>
<script type="text/javascript">
    $(function () {
        $('[id*=lnkModal]').click(function () {
            var src = $(this).attr('href');
            $("#dvDialog").load(src).dialog({
                title: 'Student Details',
                autoOpen: false,
                resizable: true,
                height: 200,
                width: 300,
                modal: true
            });

            $('#dvDialog').dialog('open');
            return false;
        });
    });
</script>

Default

Student ID:
<asp:Label ID="lblId" runat="server" />

Namespace

C#

using System.Data;

VB.Net

Imports System.Data

Code

C#

protected void Page_Load(object sender, EventArgs e)
{
    if (!this.IsPostBack)
    {
        DataTable dt = new DataTable();
        dt.Columns.Add("StudentID");
        dt.Columns.Add("Name");
        dt.Rows.Add("01", "Ram");
        dt.Rows.Add("02", "Vikas");
        rptData.DataSource = dt;
        rptData.DataBind();
    }
}

Default

protected void Page_Load(object sender, EventArgs e)
{
    lblId.Text = Request.QueryString["id"];
}

VB.Net

Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
    If Not Me.IsPostBack Then
        Dim dt As DataTable = New DataTable()
        dt.Columns.Add("StudentID")
        dt.Columns.Add("Name")
        dt.Rows.Add("01", "Ram")
        dt.Rows.Add("02", "Vikas")
        rptData.DataSource = dt
        rptData.DataBind()
    End If
End Sub

Default 

Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
    lblId.Text = Request.QueryString("id")
End Sub

Screenshot