<%@ Page Title="" Language="C#" MasterPageFile="~/Site1.Master" AutoEventWireup="true" CodeBehind="merchantsearch.aspx.cs" Inherits="Template1.RegistrationSummary" %>
<
<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" runat="server">script language="javascript" type="text/javascript">
{
{
  function select_first()var table = document.getElementById('<%= Gridview1.MerchantMID%>');

  if (table.rows && table.rows.length>0)
  //Here you need to use 1 for first row. because 0 means its refers the header row in table.
  {
     {
     chkChecked.checked =
  }
     chkChecked = chkChecked.nextSibling;

  }
}
}

var firstrow = table.rows[1];
var cell = firstrow.cells[0];
var chkChecked = cell.firstChild;
while(chkChecked)
  if(chkChecked.tagName=="INPUT" && chkChecked.type=="radio")
  "checked";
  break;

</script>


<h2 class="h1-style1">

<span>Merchant search page</span></h2>

<span>Merchant MID: &nbsp;&nbsp;
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
Or/And
Merchant name:
<asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>

<asp:Button ID="buttonSearch_Click" runat="server" Text="Search" onclick="buttonSearch_Click_Click" />

<asp:LinqDataSource ID="LinqDataSource1" runat="server" ContextTypeName="DataClasses2DataContext" EnableDelete="True" EnableInsert="True" EnableUpdate="True" TableName="dbmerchants">
</asp:LinqDataSource>

<asp:GridView ID="Gridview1" runat="server" AllowPaging="True" CssClass="mGrid" GridLines="None" AutoGenerateColumns="False" PagerStyle-CssClass="pgr" AlternatingRowStyle-CssClass="alt" AllowSorting="True" onpageindexchanging="Gridview1_PageIndexChanging1">

<Columns>
<asp:BoundField DataField="MerchantMID" HeaderText="Category ID"/>
<asp:BoundField DataField="merchantname" HeaderText="Name"/>

<asp:TemplateField HeaderText="Select">

<ItemStyle HorizontalAlign="Center" />
<ItemTemplate>
<input name="MyRadioButton" type="radio" checked="checked" enableviewstate="true" value='<%# Eval("MerchantMID") %>' />
<!-- <asp:RadioButton ID="MyRadioButton" runat="server" Text='<%# Eval("MerchantMID")%>' GroupName="RadioButton" /> -->
</ItemTemplate>

</asp:TemplateField> </Columns>
</asp:GridView>

<script type="text/javascript" language="javascript">
select_first();
</script>

<asp:Button ID="Button1" runat="server" Text="Confirm Merchant" OnClick="submit" Visible ="false" />

<asp:Label id="Label1" runat="server"/>

</span></asp:Content>