Issue with sorting when using DomainDataSource

[Ron]

I have a RadGridView that is bound to a DomainDataSource (Order) that has a column defined as follows:

 

 

 

<radGrid:GridViewDataColumn UniqueName="TransportationMode" DataMemberBinding="{Binding Path=TransportationMode.DescModeTransp, Mode=TwoWay}" IsReadOnly="True" IsGroupable="True" Width="Auto" IsVisible="True">

 

 

 

 

<radGrid:GridViewDataColumn.Header>

 

 

 

 

<TextBlock Text="Mode" ToolTipService.ToolTip="Mode" />

 

 

 

 

</radGrid:GridViewDataColumn.Header>

 

 

 

 

</radGrid:GridViewDataColumn>

 

TransportationMode is an entity of type TransportationMode and a property of Order -->   (Order.TransportationMode)  

TransportationMode can be NULL

If I try to sort on the TransportationMode column by clicking in the column header and either all the Orders have a null TransportationMode or the current row before clicking the header has a null TransportationMode then I receive the following error:

Exception:System.InvalidOperationException
Message:Failed to compare two elements in the array.
User Data:
Stack trace:   at System.Collections.Generic.ArraySortHelper`1.BinarySearch(T[] array, Int32 index, Int32 length, T value, IComparer`1 comparer)
   at System.Array.BinarySearch[T](T[] array, Int32 index, Int32 length, T value, IComparer`1 comparer)
   at System.Collections.Generic.List`1.BinarySearch(Int32 index, Int32 count, T item, IComparer`1 comparer)
   at System.Collections.Generic.List`1.BinarySearch(T item, IComparer`1 comparer)
   at Telerik.Windows.Data.KeyedCollection.IndexOf(Object value)
   at Telerik.Windows.Data.QueryableCollectionView.InternalIndexOf(Object item)
   at Telerik.Windows.Data.QueryableCollectionView.TryRestorePreviousCurrency()
   at Telerik.Windows.Data.QueryableCollectionView.InitializeCurrencyOnRefresh()
   at Telerik.Windows.Data.QueryableCollectionView.RefreshOverride()
   at Telerik.Windows.Data.QueryableCollectionView.RefreshInternal()
   at Telerik.Windows.Data.QueryableCollectionView.RefreshOrDefer()
   at Telerik.Windows.Data.QueryableCollectionView.ProcessSynchronousCollectionChanged(NotifyCollectionChangedEventArgs args)
   at Telerik.Windows.Data.QueryableCollectionView.ProcessCollectionChanged(NotifyCollectionChangedEventArgs args)
   at Telerik.Windows.Data.QueryableCollectionView.OnSourceCollectionChanged(Object sender, NotifyCollectionChangedEventArgs args)
   at Telerik.Windows.Data.QueryableCollectionView.Telerik.Windows.Data.IWeakEventListener<System.Collections.Specialized.NotifyCollectionChangedEventArgs>.ReceiveWeakEvent(Object sender, NotifyCollectionChangedEventArgs args)
   at Telerik.Windows.Data.WeakEvent.WeakListener`1.Handler(Object sender, TArgs args)
   at System.Collections.ObjectModel.ObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
   at Telerik.Windows.Data.RadObservableCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
   at Telerik.Windows.Data.ObservableItemCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
   at Telerik.Windows.Controls.DomainServices.DomainServiceCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
   at Telerik.Windows.Data.RadObservableCollection`1.ResumeNotifications()
   at Telerik.Windows.Controls.DomainServices.DomainServiceCollection`1.OnLoadOperationCompleted(LoadOperation`1 loadOperation)
   at System.ServiceModel.DomainServices.Client.DomainContext.<>c__DisplayClass13`1.<Load>b__11(LoadOperation lo)
   at System.ServiceModel.DomainServices.Client.LoadOperation.<>c__DisplayClass4`1.<Create>b__0(LoadOperation`1 arg)
   at System.ServiceModel.DomainServices.Client.LoadOperation`1.InvokeCompleteAction()
   at System.ServiceModel.DomainServices.Client.OperationBase.Complete(Object result)
   at System.ServiceModel.DomainServices.Client.LoadOperation.Complete(DomainClientResult result)
   at System.ServiceModel.DomainServices.Client.DomainContext.CompleteLoad(IAsyncResult asyncResult)
   at System.ServiceModel.DomainServices.Client.DomainContext.<>c__DisplayClass1b.<Load>b__17(Object )
Inner Exception:System.NullReferenceException
Message:Object reference not set to an instance of an object.
User Data:
Stack trace:   at lambda_method(Closure , Orders )
   at Telerik.Windows.Data.FuncExtensions.<>c__DisplayClass1`2.<ToUntypedFunc>b__0(Object item)
   at Telerik.Windows.Data.FunctionComparer.Compare(Object x, Object y)
   at System.Collections.Generic.ArraySortHelper`1.InternalBinarySearch(T[] array, Int32 index, Int32 length, T value, IComparer`1 comparer)
   at System.Collections.Generic.ArraySortHelper`1.BinarySearch(T[] array, Int32 index, Int32 length, T value, IComparer`1 comparer)


Can you please help?

[Vlad]

Hello,

 Can you post the grid settings as well? What's is your grid version? Is it our latest official Q3 2012? Can you clarify also if this is regular DomainDataSource or RadDomainDataSource?

Kind regards,
Vlad
the Telerik team

[Ron]

Rad Domain Data Source

 

 

 

 

<radDomain:RadDomainDataSource x:FieldModifier="public" x:Name="OrdersDomainDataSource" QueryName="FindAllOrders" AutoLoad="False" DataContext="{Binding}">

 

 

 

 

 

 

 

 

<radDomain:RadDomainDataSource.DomainContext>

 

 

 

 

 

 

 

 

<mt:OrdersDomainContext/>

 

 

 

 

 

 

 

 

</radDomain:RadDomainDataSource.DomainContext>

 

 

 

 

 

 

 

 

<radDomain:RadDomainDataSource.QueryParameters>

 

 

 

 

 

 

 

 

<radDomain:QueryParameter ParameterName="OrdersHydration" Value="All"/>

 

 

 

 

 

 

 

 

</radDomain:RadDomainDataSource.QueryParameters>

 

 

 

 

 

 

 

 

<radDomain:RadDomainDataSource.SortDescriptors>

 

 

 

 

 

 

 

 

<radData:SortDescriptor Member="DisplayCodeOrders" SortDirection="Ascending"/>

 

 

 

 

 

 

 

 

</radDomain:RadDomainDataSource.SortDescriptors>

 

 

 

 

 

 

 

 

</radDomain:RadDomainDataSource>

 

Grid:

x

 

 

:FieldModifier="public" x:Name="DomainGridView" DomainDataSource="{Binding BindsDirectlyToSource=True, Source={StaticResource OrdersDomainDataSource}}

 

[Ron]

Version is v2011.2.1031

[Rossen Hristov]

Hello,

We believe that we fixed a similar issue a while ago. Can you please try with our latest version 2012 Q3 which was released last week.

If the problem persists, I would like to ask you to send us a runnable dummy sample project that exhibits this behavior so we can debug it at our side and identify the problem.

Thanks in advance.

Kind regards,
Rossen Hristov
the Telerik team