Get DataKeyName of Radgrid server side

Hii,  Here a Very Easy way to find datakeyname value of Radgrid

 int intItemIndex = e.Item.ItemIndex; ;

            int intMyID = Convert.ToInt32(Radgrid.MasterTableView.Items[intItemIndex].GetDataKeyValue("Id").ToString());

Find Control Value on RadGrid ItemCommand

protected void RadGrid1_ItemCommand(object source, GridCommandEventArgs e)

{

if (e.CommandName == "some_command")

{

GridEditFormItem editform = (GridEditFormItem)((Telerik.Web.UI.GridDataItem)(e.Item)).EditFormItem;

TextBox txtbx = (TextBox)editform.FindControl("MyTextbox");

string strtxt = txtbx.Text;

}

}