Hi.
I'm considering the purchase of UI for WPF, so I downloaded to test the trial version.
I'm working through this example (http://docs.telerik.com/devtools/wpf/controls/raddataservicedatasource/getting-started/creating-the-data-bound-controls), but instead of WCF services, I'm using OData version 7.
Everything works fine, except when I'm trying to apply even a single filter on columns containing enum elements, I'm getting this exception :
Babken Gevorgyan, [01.08.17 13:36]
System.Windows.Data Error: 8 : Cannot save value from target back to source. BindingExpression:Path=IsActive; DataItem='DistinctValueViewModel' (HashCode=2921675); target element is 'CheckBox' (Name=''); target property is 'IsChecked' (type 'Nullable`1') NotSupportedException:'System.NotSupportedException: Could not convert constant Credit expression to string.
at Microsoft.OData.Client.ExpressionWriter.VisitConstant(ConstantExpression c)
at Microsoft.OData.Client.ALinqExpressionVisitor.Visit(Expression exp)
at Microsoft.OData.Client.DataServiceALinqExpressionVisitor.Visit(Expression exp)
at Microsoft.OData.Client.ExpressionWriter.Visit(Expression exp)
at Microsoft.OData.Client.ExpressionWriter.VisitOperand(Expression e, Nullable`1 parentType, Nullable`1 childDirection)
at Microsoft.OData.Client.ExpressionWriter.VisitBinary(BinaryExpression b)
at Microsoft.OData.Client.ALinqExpressionVisitor.Visit(Expression exp)
at Microsoft.OData.Client.DataServiceALinqExpressionVisitor.Visit(Expression exp)
at Microsoft.OData.Client.ExpressionWriter.Visit(Expression exp)
at Microsoft.OData.Client.ExpressionWriter.ExpressionToString(DataServiceContext context, Expression e, Boolean inPath, Version& uriVersion)
at Microsoft.OData.Client.UriWriter.VisitQueryOptionExpression(FilterQueryOptionExpression fqoe)
at Microsoft.OData.Client.UriWriter.VisitQueryOptions(ResourceExpression re)
at Microsoft.OData.Client.UriWriter.VisitQueryableResourceExpression(QueryableResourceExpression rse)
at Microsoft.OData.Client.DataServiceALinqExpressionVisitor.Visit(Expression exp)
at Microsoft.OData.Client.UriWriter.Translate(DataServiceContext context, Boolean addTrailingParens, Expression e, Uri& uri, Version& version)
at Microsoft.OData.Client.DataServiceQueryProvider.Translate(Expression e)
at Microsoft.OData.Client.DataServiceQuery`1.get_RequestUri()
at Telerik.Windows.Data.QueryableDataServiceCollectionView`1.ReturnsSingleEntity(DataServiceQuery`1 query)
at Telerik.Windows.Data.QueryableDataServiceCollectionView`1.BuildDataServiceQuery(Int32 pageIndex)
at Telerik.Windows.Controls.DataServices.QueryableDataServiceCollectionViewBase.CompletePageMove(Int32 newPageIndex)
at Telerik.Windows.Data.QueryableCollectionView.MoveToPageCore(Int32 index)
at Telerik.Windows.Controls.DataServices.QueryableDataServiceCollectionViewBase.MoveToPageCore(Int32 index)
at Telerik.Windows.Data.QueryableCollectionView.InvalidatePaging()
at Telerik.Windows.Data.QueryableCollectionView.InvalidatePagingAndRefresh()
at Telerik.Windows.Data.QueryableCollectionView.OnFilterDescriptorsChanged()
at Telerik.Windows.Data.QueryableDataServiceCollectionView`1.OnFilterDescriptorsCollectionChanged(Object sender, NotifyCollectionChangedEventArgs e)
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)
at Telerik.Windows.Data.ObservableItemCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
at System.Collections.ObjectModel.ObservableCollection`1.InsertItem(Int32 index, T item)
at Telerik.Windows.Data.RadObservableCollection`1.InsertItem(Int32 index, T item)
at Telerik.Windows.Data.FilterDescriptorCollection.InsertItem(Int32 index, IFilterDescriptor item)
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)
at Telerik.Windows.Data.ObservableCollectionManager.HandleCollectionChanged(IList sender, NotifyCollectionChangedEventArgs args)
Babken Gevorgyan, [01.08.17 13:36]
at Telerik.Windows.Data.ObservableCollectionManager.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.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)
at Telerik.Windows.Data.ObservableItemCollection`1.OnCollectionChanged(NotifyCollectionChangedEventArgs e)
at System.Collections.ObjectModel.ObservableCollection`1.InsertItem(Int32 index, T item)
at Telerik.Windows.Data.RadObservableCollection`1.InsertItem(Int32 index, T item)
at Telerik.Windows.Data.FilterDescriptorCollection.InsertItem(Int32 index, IFilterDescriptor item)
at System.Collections.ObjectModel.Collection`1.Add(T item)
at Telerik.Windows.Controls.GridViewColumn.OnColumnFilterDescriptorPropertyChanged(Object sender, PropertyChangedEventArgs e)
at Telerik.Windows.Data.DescriptorBase.OnPropertyChanged(PropertyChangedEventArgs args)
at Telerik.Windows.Data.DescriptorBase.OnPropertyChanged(String propertyName)
at Telerik.Windows.Data.DescriptorBase.ResumeNotifications()
at Telerik.Windows.Controls.GridView.FilteringViewModel.ApplyFilters()
at Telerik.Windows.Controls.GridView.FilteringViewModel.OnDistinctValuesChanged()
at Telerik.Windows.Controls.GridView.FilteringViewModel.OnDistinctValuesItemChanged(Object sender, ItemChangedEventArgs`1 e)
at Telerik.Windows.Data.ObservableItemCollection`1.RaiseGenericItemChanged(ItemChangedEventArgs`1 e)
at Telerik.Windows.Data.ObservableItemCollection`1.OnItemChanged(ItemChangedEventArgs`1 e)
at Telerik.Windows.Data.ObservableItemCollection`1.Telerik.Windows.Data.IWeakEventListener<System.ComponentModel.PropertyChangedEventArgs>.ReceiveWeakEvent(Object sender, PropertyChangedEventArgs args)
at Telerik.Windows.Data.WeakEvent.WeakListener`1.Handler(Object sender, TArgs args)
at System.ComponentModel.PropertyChangedEventHandler.Invoke(Object sender, PropertyChangedEventArgs e)
at Telerik.Windows.Controls.ViewModelBase.OnPropertyChanged(String propertyName)
at Telerik.Windows.Controls.GridView.DistinctValueViewModel.set_IsActive(Boolean value)'
Thanks.