Grid View crashes when trying to use in built filter

[Sourav]

Hello,
I'm facing an issue while filtering the loaded data using the inbuilt column filter. The specific error message I get is as follows:

System.Windows.Data Error: 8 : Cannot save value from target back to source. BindingExpression:Path=IsActive; DataItem='DistinctValueViewModel' (HashCode=49992105); target element is 'CheckBox' (Name=''); target property is 'IsChecked' (type 'Nullable`1') NullReferenceException:'System.NullReferenceException: Object reference not set to an instance of an object.

at Telerik.Windows.Controls.GridView.GridViewVirtualizingPanel.ArrangeOverride(Size finalSize) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Controls\GridView\GridView\GridView\Virtualization\GridViewVirtualizingPanel.cs:line 1517

at System.Windows.FrameworkElement.ArrangeCore(Rect finalRect)

at System.Windows.UIElement.Arrange(Rect finalRect)

at System.Windows.ContextLayoutManager.UpdateLayout()

at System.Windows.UIElement.UpdateLayout()

at Telerik.Windows.Controls.GridView.GridViewDataControl.ItemsSourceChanged(Boolean sourceChanged) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Controls\GridView\GridView\GridView\GridViewDataControl.cs:line 3157

at Telerik.Windows.Controls.GridView.GridViewDataControl.OnItemsChanged(NotifyCollectionChangedEventArgs e) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Controls\GridView\GridView\GridView\GridViewDataControl.cs:line 8052

at Telerik.Windows.Controls.GridView.BaseItemsControl.OnItemCollectionChanged(Object sender, NotifyCollectionChangedEventArgs e) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Controls\GridView\GridView\GridView\ItemsControl\BaseItemsControl.cs:line 691

at System.Collections.Specialized.NotifyCollectionChangedEventHandler.Invoke(Object sender, NotifyCollectionChangedEventArgs e)

at Telerik.Windows.Data.DataItemCollection.OnCollectionChanged(NotifyCollectionChangedEventArgs e) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\Collections\DataItemCollection.cs:line 653

at Telerik.Windows.Data.DataItemCollection.OnCollectionViewCollectionChanged(NotifyCollectionChangedEventArgs e) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\Collections\DataItemCollection.cs:line 641

at Telerik.Windows.Data.DataItemCollection.Telerik.Windows.Data.IWeakEventListener<System.Collections.Specialized.NotifyCollectionChangedEventArgs>.ReceiveWeakEvent(Object sender, NotifyCollectionChangedEventArgs e) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\Collections\DataItemCollection.cs:line 1034

at Telerik.Windows.Data.WeakEvent.WeakListener`1.Handler(Object sender, TArgs args) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\WeakEvents\WeakEvent.cs:line 32

at Telerik.Windows.Data.QueryableCollectionView.OnCollectionChanged(NotifyCollectionChangedEventArgs args) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\Collections\QueryableCollectionView.cs:line 669

at Telerik.Windows.Data.QueryableCollectionView.RefreshOverride() in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\Collections\QueryableCollectionView.cs:line 818

at Telerik.Windows.Data.QueryableCollectionView.RefreshInternal() in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\Collections\QueryableCollectionView.cs:line 765

at Telerik.Windows.Data.QueryableCollectionView.RefreshOrDefer() in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\Collections\QueryableCollectionView.cs:line 759

at Telerik.Windows.Data.QueryableCollectionView.InvalidatePagingAndRefresh() in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\Collections\QueryableCollectionView.cs:line 384

at Telerik.Windows.Data.QueryableCollectionView.OnFilterDescriptorsCollectionChanged(Object sender, NotifyCollectionChangedEventArgs e) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\Collections\QueryableCollectionView.cs:line 419

at System.Collections.Specialized.NotifyCollectionChangedEventHandler.Invoke(Object sender, NotifyCollectionChangedEventArgs e)

at System.Collections.ObjectModel.ObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)

at Telerik.Windows.Data.RadObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\Collections\RadObservableCollection.cs:line 143

at Telerik.Windows.Data.ObservableItemCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\Collections\ObservableItemCollection.cs:line 91

at System.Collections.ObjectModel.ObservableCollection`1.InsertItem(Int32 index, T item)

at Telerik.Windows.Data.RadObservableCollection`1.InsertItem(Int32 index, T item) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\Collections\RadObservableCollection.cs:line 189

at System.Collections.ObjectModel.Collection`1.Insert(Int32 index, T item)

at System.Collections.ObjectModel.Collection`1.System.Collections.IList.Insert(Int32 index, Object value)

at Telerik.Windows.Data.CollectionHelper.Insert(IList target, IEnumerable newItems, Int32 startingIndex, IEqualityComparer itemComparer) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\Collections\CollectionHelper.cs:line 334

at Telerik.Windows.Data.ObservableCollectionManager.HandleCollectionChanged(IList sender, NotifyCollectionChangedEventArgs args) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\Collections\Synchronization\ObservableCollectionManager.cs:line 105

at Telerik.Windows.Data.ObservableCollectionManager.Telerik.Windows.Data.IWeakEventListener<System.Collections.Specialized.NotifyCollectionChangedEventArgs>.ReceiveWeakEvent(Object sender, NotifyCollectionChangedEventArgs args) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\Collections\Synchronization\ObservableCollectionManager.cs:line 86

at Telerik.Windows.Data.WeakEvent.WeakListener`1.Handler(Object sender, TArgs args) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\WeakEvents\WeakEvent.cs:line 32

at System.Collections.Specialized.NotifyCollectionChangedEventHandler.Invoke(Object sender, NotifyCollectionChangedEventArgs e)

at System.Collections.ObjectModel.ObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)

at Telerik.Windows.Data.RadObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\Collections\RadObservableCollection.cs:line 143

at Telerik.Windows.Data.ObservableItemCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\Collections\ObservableItemCollection.cs:line 91

at System.Collections.ObjectModel.ObservableCollection`1.InsertItem(Int32 index, T item)

at Telerik.Windows.Data.RadObservableCollection`1.InsertItem(Int32 index, T item) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\Collections\RadObservableCollection.cs:line 189

at System.Collections.ObjectModel.Collection`1.Add(T item)

at Telerik.Windows.Controls.GridView.FilteringViewModel.OnPropertyChanged(Object sender, PropertyChangedEventArgs e) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Controls\GridView\GridView\GridView\Filtering\FilteringViewModel.cs:line 541

at System.ComponentModel.PropertyChangedEventHandler.Invoke(Object sender, PropertyChangedEventArgs e)

at Telerik.Windows.Controls.ViewModelBase.OnPropertyChanged(String propertyName) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Core\Controls\Common\ViewModelBase.cs:line 56

at Telerik.Windows.Controls.GridView.FilteringViewModel.Activate(IFilterDescriptor filter) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Controls\GridView\GridView\GridView\Filtering\FilteringViewModel.cs:line 589

at Telerik.Windows.Controls.GridView.FilteringViewModel.OnDistinctValuesItemChanged(Object sender, ItemChangedEventArgs`1 e) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Controls\GridView\GridView\GridView\Filtering\FilteringViewModel.cs:line 558

at Telerik.Windows.Data.ObservableItemCollection`1.RaiseGenericItemChanged(ItemChangedEventArgs`1 e) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\Collections\ObservableItemCollection.cs:line 69

at Telerik.Windows.Data.ObservableItemCollection`1.OnItemChanged(ItemChangedEventArgs`1 e) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\Collections\ObservableItemCollection.cs:line 51

at Telerik.Windows.Data.ObservableItemCollection`1.OnItemPropertyChanged(Object sender, PropertyChangedEventArgs e) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Core\Data\Collections\ObservableItemCollection.cs:line 110

at System.ComponentModel.PropertyChangedEventHandler.Invoke(Object sender, PropertyChangedEventArgs e)

at Telerik.Windows.Controls.ViewModelBase.OnPropertyChanged(String propertyName) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Core\Controls\Common\ViewModelBase.cs:line 56

at Telerik.Windows.Controls.GridView.DistinctValueViewModel.set_IsActive(Boolean value) in c:\Builds\WPF_Scrum\Release_WPF\Sources\Development\Controls\GridView\GridView\GridView\Filtering\DistinctValueViewModel.cs:line 27'

 

 

Can anyone help me out here? Please do let me know if any other information is required.

[Sourav]

Some additional info:
The issue does not repro when I do not have a RowDetailsTemplate set.

[Sourav]

Alrighty... I seem to have found the root cause of the issue. Looks like if you have the row detail template set and have a fairly large number of rows (in my case it was 1500) and you have the DataLoadMode set to asynchronous, then the rad grid view will crash on filtering.

The workaround is to get rid of the DataLoadMode setter from your XAML. Still dunno what impact that will have on the overall UI though