protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName == "cmdBind")
{
LinkButton lb = (LinkButton)e.CommandSource;
int index = Convert.ToInt32(lb.CommandArgument);
TextBox1.Text = GridView1.Rows[index].Cells[0].Text;
TextBox2.Text = GridView1.Rows[index].Cells[1].Text;
TextBox3.Text = GridView1.Rows[index].Cells[2].Text;
ModalPopupExtender1.Show();
}
}