protected void btnSave_Click(Object Sender, EventArgs e)
 {
     oWorkstation.DeleteComponentPermission(intComponent);
     foreach (TreeNode oNode in oTree.Nodes)
     {
         if (oNode.Checked == true)
         {
             oWorkstation.AddComponentPermission(intComponent, Int32.Parse(oNode.Value));
         }
     }
     Reload();
 }