UI Crash with Update itemsource which was a over 6000 columns will stop UI

[Mengjie]

If my itemsource already has a very large datatable source for example with 6000+ columns and one line then update it to a small table by changing the itemsource. 

private static void OnItemsSourcePropertyValueChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
        {
            var dynamicGrid = d as DynamicGrid;
            if (dynamicGrid == null)
                return;
            try
            {
                dynamicGrid.ItemsSource.Dispose();
                dynamicGrid._grid.SelectedItems.Clear();
                dynamicGrid._grid.SelectedItem = null;
                dynamicGrid._grid.Rebind();
                dynamicGrid.ItemsSource = null; stop here and no exception,code stop running
                dynamicGrid.ItemsSource = e.NewValue as DataTable;   
            }

}

 

[Mengjie]

public DataTable ItemsSource
        {
            get { return (DataTable)GetValue(ItemsSourceProperty); }
            set
            {
                SetValue(ItemsSourceProperty, value);

                _radDataPager.Source = value != null ? value.DefaultView : null;
            }
        }

[Petya]

Hi Mengjie,

I'm not aware of the specific implementation at your end, but it looks like you're setting the ItemsSource property in the change callback for the ItemsSource property. My guess is this is causing an infinite cycle and that's why you're observing the crash. Could you try moving the code to see if that resolve the issue?

Regards,
Petya
Telerik