Link button in First Column of Gridview in C#

protected void GridView1_SelectedIndexChanged(object sender, EventArgs e)

{

Int32 pdetcod;

pdetcod = Convert.ToInt32(GridView1.SelectedDataKey.Value);

Session["prjcode2"] = pdetcod;

Response.Redirect("frmempprjdet.aspx");

}

//comment

Right click on Gridview Properties and give DataKeyName="id"