protected void uiGridViewCategories_RowCommand(object sender, GridViewCommandEventArgs e)
 {
     if (e.CommandName == "EditCategory")
     {
         Categories objData = new Categories();
         objData.LoadByPrimaryKey(Convert.ToInt32(e.CommandArgument.ToString()));
         uiTextBoxArName.Text = objData.Title;
         uiPanelViewCategories.Visible = false;
         uiPanelEdit.Visible = true;
         CurrentCategory = objData;
     }
     else if (e.CommandName == "DeleteCategory")
     {
         Categories objData = new Categories();
         objData.LoadByPrimaryKey(Convert.ToInt32(e.CommandArgument.ToString()));
         objData.MarkAsDeleted();
         objData.Save();
         CurrentCategory = null;
         BindData();
     }
 }