Know the value of link button in a Grid view

In this blog we will know the value of link button in a Grid view.

 

Scenario

 

I have a grid view with username as the link button in a template field. When user clicks on the link button then username value, which is a link button, will be displayed in a label control.

 

 

<%@ Page Language="C#" AutoEventWireup="true"  CodeFile="Default.aspx.cs" Inherits="_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>Untitled Page</title>

</head>

<body>

    <form id="form1" runat="server">

    <div>

     <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"

            onselectedindexchanging="GridView1_SelectedIndexChanging" DataKeyNames="empname">

         <Columns>

               <asp:TemplateField HeaderText="Name">

                <ItemTemplate>

                <asp:LinkButton ID="lnkSelect" Text="" CommandName="Select" runat="server">

                <%#Eval("empname")%>

                </asp:LinkButton>

                </ItemTemplate>

             </asp:TemplateField>

           </Columns>

   </asp:GridView>

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

    </div>

    </form>

</body>

</html>

 

 

using System;

using System.Configuration;

using System.Data;

using System.Linq;

using System.Web;

using System.Web.Security;

using System.Web.UI;

using System.Web.UI.HtmlControls;

using System.Web.UI.WebControls;

using System.Web.UI.WebControls.WebParts;

using System.Xml.Linq;

using System.Data.SqlClient;

public partial class _Default : System.Web.UI.Page

{

    string connStr = ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString;

    DataSet ds = new DataSet();

    SqlCommand com;

    SqlConnection con;

    SqlDataAdapter sqlda;

    string str;

    string str1;

    protected void Page_Load(object sender, EventArgs e)

    {

        if (!IsPostBack)

        {

            binddata();

        }

       

    }

    void binddata()

    {

        con = new SqlConnection(connStr);

        con.Open();

        str = "select * from employee";

        com = new SqlCommand(str, con);

        sqlda = new SqlDataAdapter(com);

        ds = new DataSet();

        sqlda.Fill(ds, "employee");

        GridView1.DataSource = ds;

        GridView1.DataMember = "employee";

        GridView1.DataBind();

        con.Close();

    }

    protected void GridView1_SelectedIndexChanging(object sender, GridViewSelectEventArgs e)

    {

        GridView1.SelectedIndex = Convert.ToInt32(e.NewSelectedIndex);

        str1 = GridView1.SelectedDataKey.Value.ToString();

        Label1.Text = "<b>You have selected employee Name:</b>" + str1;

        binddata();

    }

}