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">

<title>Untitled Page</title>

</head>

<body>

<div>

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

onselectedindexchanging="GridView1_SelectedIndexChanging" DataKeyNames="empname">

<asp:TemplateField HeaderText="Name">

<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();

}