how to get the empid while click on a row of the repeater?

I have a repeater. i want to get empid when i click on its any row.? how can i ? My code is:-

<table id="table1" class="yui" cellpadding="0" cellspacing="0">
            <thead>
                <tr>
                    <th>
                        <a href='#' title="Click Header to Sort">Emp name #</a>
                    </th>
                    <th>
                        <a href='#' title="Click Header to Sort">emp sal</a>
                    </th>
                    <th>
                        <a href='#' title="Click Header to Sort">emp address</a>
                    </th>

                </tr>
            </thead>
            <tbody>
                <asp:Repeater ID="Repaddressorbbl" runat="server" OnItemCommand="Repaddressorbbl_ItemCommand">
                    <ItemTemplate>
                        <tr id="gh" style="cursor: pointer" onclick="Select(this);">
                            <td style="text-align: center;">
                                <%#Eval("empname")%>
                            </td>
                            <td style="text-align: center;">
                                <%# Eval("empsal")%>
                            </td>
                            <td style="text-align: center;">
                                <%# Eval("empadd")%>
                            </td>
                               </tr>
                    </ItemTemplate>
                </asp:Repeater>
            </tbody>
            <tfoot>
                <tr id="pagerOne1">
                    <td colspan="4">
                        <img src="_assets/img/first.png" class="first" />
                        <img src="_assets/img/prev.png" class="prev" />
                        <input type="text" class="pagedisplay" />
                        <img src="_assets/img/next.png" class="next" />
                        <img src="_assets/img/last.png" class="last" />
                        <select class="pagesize">
                            <option selected="selected" value="100">100</option>
                            <option value="200">200</option>
                            <option value="400">400</option>
                        </select>
                    </td>
                </tr>
            </tfoot>
        </table>

Solution

YOu have to create manual postback. But for this to work always, your repeater should bind always, i.e. during each postback.

The following code snippets may guide you.

using System;

namespace PostbackRef.Web
{
    public partial class _Default : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (IsPostBack)
            {
                string arg = Request["__EVENTARGUMENT"];
                if (string.IsNullOrEmpty(arg) == false)
                {
                    if (arg.StartsWith("row"))
                    {
                        string v = arg.Substring(arg.IndexOf("#") + 1);
                        txtSelected.Text = v;
                    }
                }
            }
            //Have to bind repeater always
            Repeater1.DataBind();
        }

        protected string getPostbackReference(string Name)
        {
            return ClientScript.GetPostBackEventReference(this, "rowEvent#" + Name);
        }
    }
}

The aspx markup looks like this:

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="PostbackRef.Web._Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
    <style type="text/css">
        p
        {
            font-size: 12pt;
        }
        p:hover
        {
            background-color: Gray;
            font-weight: bold;
            color: White;
        }
    </style>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:Repeater ID="Repeater1" runat="server" DataSourceID="ObjectDataSource1">
            <ItemTemplate>
                <p onclick="<%# getPostbackReference((string)Container.DataItem) %>">
                    <%# Container.DataItem %></p>
            </ItemTemplate>
        </asp:Repeater>
        <asp:ObjectDataSource ID="ObjectDataSource1" runat="server" SelectMethod="GetNames"
            TypeName="PostbackRef.Web.MyDs"></asp:ObjectDataSource>
        <asp:HiddenField ID="hfValue" runat="server" />
    </div>
    <div>
        Clicked : 
        <asp:TextBox ID="txtSelected" runat="server"></asp:TextBox>
    </div>
    </form>
</body>
</html>

I've used an ObjectDataSource which returns a string array of names, but the choice of datasource is entirely yours. Here I've used just for e.g. sake.

Note that I am calling Repeater1.Databind() on Page_Load irrespective of postback or not. There are probably better ways to do this. But most of the code came exactly here