control to fill the data and perform postback

Hi,

you can use any data control from basic asp.net controls

you can see list of data controls in toolbox like..datalist,reapeter,gridview...


And write code to display data in selectedindexchanged event


http://msdn.microsoft.com/en-us/library/cc295567.aspx

In the above link you can see details about data controls

<form id="form1" runat="server">
<div>
<br />
    <asp:TextBox ID="TextBox1" runat="server"><br />
    <asp:DataList ID="DataList1" runat="server" onitemcommand="DataList1_ItemCommand" Width ="60%"
       >
     <HeaderTemplate >
       <table width="100%" align="center">
         <tr>
           <td>List of Items</td>
         </tr>

     </HeaderTemplate>
     <itemtemplate>
          <tr>
           <td>
               <asp:LinkButton ID="LinkButton1" runat="server" CommandName ="show" CommandArgument ="3"> <asp:Label ID="Label1" runat="server" Text=' <%#Container.DataItem %>'>

           </td>
         </tr>
     </itemtemplate>
     <footertemplate>
         </footertemplate></table>



</div>
</form>

And code behind file contains following code

    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {

   
            List<string> str = new List<string>();
            str.Add("frstitem");
            str.Add("secnditem");
            str.Add("ghgfh");
            str.Add("frstitem");
            str.Add("secnditem");
            str.Add("ghgfh");
            str.Add("frstitem");
            str.Add("secnditem");
            str.Add("ghgfh");

            DataList1.DataSource = str;
            DataList1.DataBind();
         

        }
    }

    protected void DataList1_ItemCommand(object source, DataListCommandEventArgs e)
    {
        if (e.CommandName == "show")
        {
            Label lbl = (Label)e.Item.FindControl("Label1");
            TextBox1.Text = lbl.Text;
        }
    }
</string></string>

In the above example we can set database to datalist as per older method


All the Best