Onclick Gridview Select button fill all the data to textbox.

 Onclick Gridview Select button fill all the data to textbox.  
 All the textbox out of gridview.  
 protected void ImgSelect_Click(object sender, ImageClickEventArgs e)  
 {  
      ImageButton aspSender = sender as ImageButton;  
      Label Id = aspSender.FindControl("lblContId") as Label;  
      hdnId.Value = Id.Text;  
      DataSet dsContact = new DataSet();  
      dsContact = SqlHelper.ExecuteDataset(connectionString, "usp_GetContact", Convert.ToInt32(Id.Text.Trim()), EmpId, "S");  
      if (dsContact.Tables[0].Rows.Count != 0)  
      {  
           txtName.Text = dsContact.Tables[0].Rows[0]["Name"].ToString();  
           ddlRelation.SelectedValue = dsContact.Tables[0].Rows[0]["RelId"].ToString();   
           txtAddress.Text = dsContact.Tables[0].Rows[0]["Address"].ToString();  
      }  
 }