public override void OnApplyTemplate()
        {
            base.OnApplyTemplate();
            Thumb resizer = (Thumb)GetTemplateChild("PART_Resizer");

            resizeHelper.Init(resizer);
            InitializeRowHeight();
        }
        void ColumnResizeGrip_Loaded(object sender, RoutedEventArgs e)
        {
            EditGridCellData cellData = this.DataContext as EditGridCellData;

            column          = cellData.Column;
            this.Visibility = column.ActualAllowResizing ? Visibility.Visible : Visibility.Collapsed;
            ResizeHelper.Init(this);
        }