Hi.
I've tried to use the example from http://blogs.telerik.com/blogs/posts/10-01-22/how_to_serialize_your_datatable_to_silverlight_using_wcf_service.aspx and had to make a small change:
Instead of IEnumerable<Dictionary<string, object>>
use
Dictionary<string, object>[]
otherwise the service would not return the data to silverlight (probable serialization issue).
Now on silverlight, when I set the grid's ItemsSource, I get this exception:
{System.NullReferenceException: Object reference not set to an instance of an object.
em Telerik.Windows.Data.TypeExtensions.DefaultValue(Type type)
em Telerik.Windows.Data.Expressions.ExpressionFactory.DefaltValueExpression(Type type)
em Telerik.Windows.Data.Expressions.ExpressionFactory.MakeMemberAccess(Expression instance, String memberName, Type memberType)
em Telerik.Windows.Data.Expressions.ExpressionFactory.MakeMemberAccess(Expression instance, String memberName, Type memberType, Boolean liftMemberAccessToNull)
em Telerik.Windows.Data.Expressions.PropertyAccessExpressionBuilder.CreateMemberAccessExpressionOverride()
em Telerik.Windows.Data.Expressions.MemberAccessExpressionBuilderBase.CreateMemberAccessExpression()
em Telerik.Windows.Data.Expressions.EnumerableSelectorAggregateFunctionExpressionBuilder.CreateMemberSelectorExpression()
em Telerik.Windows.Data.Expressions.EnumerableSelectorAggregateFunctionExpressionBuilder.CreateAggregateExpression()
em Telerik.Windows.Data.EnumerableSelectorAggregateFunction.CreateAggregateExpression(Expression enumerableExpression)
em Telerik.Windows.Data.Expressions.GroupDescriptorExpressionBuilder.<ProjectionPropertyValueExpressions>b__3(AggregateFunction f)
em System.Linq.Enumerable.WhereSelectListIterator`2.MoveNext()
em System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
em System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
em Telerik.Windows.Data.Expressions.GroupDescriptorExpressionBuilder.CreateProjectionInitExpression()
em Telerik.Windows.Data.Expressions.GroupDescriptorExpressionBuilder.CreateAggregateFunctionsProjectionMemberBinding()
em Telerik.Windows.Data.Expressions.GroupDescriptorExpressionBuilder.<CreateMemberBindings>d__0.MoveNext()
em System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
em System.Dynamic.Utils.CollectionExtensions.ToReadOnly[T](IEnumerable`1 enumerable)
em System.Linq.Expressions.Expression.MemberInit(NewExpression newExpression, IEnumerable`1 bindings)
em Telerik.Windows.Data.Expressions.GroupDescriptorExpressionBuilder.CreateSelectBodyExpression()
em Telerik.Windows.Data.Expressions.GroupDescriptorExpressionBuilder.CreateResultSelectorExpression()
em Telerik.Windows.Data.Expressions.GroupDescriptorExpressionBuilder.get_ResultSelectorExpression()
em Telerik.Windows.Data.Expressions.GroupDescriptorExpressionBuilderBase.CreateQuery()
em Telerik.Windows.Data.Expressions.GroupDescriptorCollectionExpressionBuilder.CreateQuery()
em Telerik.Windows.Data.QueryableExtensions.GroupBy(IQueryable source, IEnumerable`1 groupDescriptors)
em Telerik.Windows.Data.QueryableExtensions.Aggregate(IQueryable source, IEnumerable`1 aggregateFunctions)
em Telerik.Windows.Controls.GridView.GridViewDataControl.CreateAggregateResults()
em Telerik.Windows.Controls.GridView.GridViewDataControl.CalculateAggregates()
em Telerik.Windows.Controls.GridView.GridViewDataControl.<>c__DisplayClass18.<Bind>b__17()
em Telerik.Windows.Controls.CursorManager.PerformTimeConsumingOperation(FrameworkElement frameworkElement, Action action)
em Telerik.Windows.Controls.GridView.GridViewDataControl.Bind(Object newValue)
em Telerik.Windows.Controls.GridView.GridViewDataControl.OnItemsSourceChanged(Object oldValue, Object newValue)
em Telerik.Windows.Controls.DataControl.OnItemsSourcePropertyChanged(DependencyObject origin, DependencyPropertyChangedEventArgs args)
em Telerik.Windows.PropertyMetadata.<>c__DisplayClass1.<Create>b__0(DependencyObject d, DependencyPropertyChangedEventArgs e)
em System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
em System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
em System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet)
em System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
em Telerik.Windows.Controls.DataControl.set_ItemsSource(Object value)
em TSB_Test.Content.DealsMonitoring.DealsMonitoring.client_GetMonitoringDealsUsingPaginationTEMPCompleted(Object sender, GetMonitoringDealsUsingPaginationTEMPCompletedEventArgs e)
em TSB_Test.Comercial.ComercialServiceClient.OnGetMonitoringDealsUsingPaginationTEMPCompleted(Object state)}
Any idea why?
Thanks.
I've tried to use the example from http://blogs.telerik.com/blogs/posts/10-01-22/how_to_serialize_your_datatable_to_silverlight_using_wcf_service.aspx and had to make a small change:
Instead of IEnumerable<Dictionary<string, object>>
use
Dictionary<string, object>[]
otherwise the service would not return the data to silverlight (probable serialization issue).
Now on silverlight, when I set the grid's ItemsSource, I get this exception:
{System.NullReferenceException: Object reference not set to an instance of an object.
em Telerik.Windows.Data.TypeExtensions.DefaultValue(Type type)
em Telerik.Windows.Data.Expressions.ExpressionFactory.DefaltValueExpression(Type type)
em Telerik.Windows.Data.Expressions.ExpressionFactory.MakeMemberAccess(Expression instance, String memberName, Type memberType)
em Telerik.Windows.Data.Expressions.ExpressionFactory.MakeMemberAccess(Expression instance, String memberName, Type memberType, Boolean liftMemberAccessToNull)
em Telerik.Windows.Data.Expressions.PropertyAccessExpressionBuilder.CreateMemberAccessExpressionOverride()
em Telerik.Windows.Data.Expressions.MemberAccessExpressionBuilderBase.CreateMemberAccessExpression()
em Telerik.Windows.Data.Expressions.EnumerableSelectorAggregateFunctionExpressionBuilder.CreateMemberSelectorExpression()
em Telerik.Windows.Data.Expressions.EnumerableSelectorAggregateFunctionExpressionBuilder.CreateAggregateExpression()
em Telerik.Windows.Data.EnumerableSelectorAggregateFunction.CreateAggregateExpression(Expression enumerableExpression)
em Telerik.Windows.Data.Expressions.GroupDescriptorExpressionBuilder.<ProjectionPropertyValueExpressions>b__3(AggregateFunction f)
em System.Linq.Enumerable.WhereSelectListIterator`2.MoveNext()
em System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
em System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
em Telerik.Windows.Data.Expressions.GroupDescriptorExpressionBuilder.CreateProjectionInitExpression()
em Telerik.Windows.Data.Expressions.GroupDescriptorExpressionBuilder.CreateAggregateFunctionsProjectionMemberBinding()
em Telerik.Windows.Data.Expressions.GroupDescriptorExpressionBuilder.<CreateMemberBindings>d__0.MoveNext()
em System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
em System.Dynamic.Utils.CollectionExtensions.ToReadOnly[T](IEnumerable`1 enumerable)
em System.Linq.Expressions.Expression.MemberInit(NewExpression newExpression, IEnumerable`1 bindings)
em Telerik.Windows.Data.Expressions.GroupDescriptorExpressionBuilder.CreateSelectBodyExpression()
em Telerik.Windows.Data.Expressions.GroupDescriptorExpressionBuilder.CreateResultSelectorExpression()
em Telerik.Windows.Data.Expressions.GroupDescriptorExpressionBuilder.get_ResultSelectorExpression()
em Telerik.Windows.Data.Expressions.GroupDescriptorExpressionBuilderBase.CreateQuery()
em Telerik.Windows.Data.Expressions.GroupDescriptorCollectionExpressionBuilder.CreateQuery()
em Telerik.Windows.Data.QueryableExtensions.GroupBy(IQueryable source, IEnumerable`1 groupDescriptors)
em Telerik.Windows.Data.QueryableExtensions.Aggregate(IQueryable source, IEnumerable`1 aggregateFunctions)
em Telerik.Windows.Controls.GridView.GridViewDataControl.CreateAggregateResults()
em Telerik.Windows.Controls.GridView.GridViewDataControl.CalculateAggregates()
em Telerik.Windows.Controls.GridView.GridViewDataControl.<>c__DisplayClass18.<Bind>b__17()
em Telerik.Windows.Controls.CursorManager.PerformTimeConsumingOperation(FrameworkElement frameworkElement, Action action)
em Telerik.Windows.Controls.GridView.GridViewDataControl.Bind(Object newValue)
em Telerik.Windows.Controls.GridView.GridViewDataControl.OnItemsSourceChanged(Object oldValue, Object newValue)
em Telerik.Windows.Controls.DataControl.OnItemsSourcePropertyChanged(DependencyObject origin, DependencyPropertyChangedEventArgs args)
em Telerik.Windows.PropertyMetadata.<>c__DisplayClass1.<Create>b__0(DependencyObject d, DependencyPropertyChangedEventArgs e)
em System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
em System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
em System.Windows.DependencyObject.SetValueInternal(DependencyProperty dp, Object value, Boolean allowReadOnlySet)
em System.Windows.DependencyObject.SetValue(DependencyProperty dp, Object value)
em Telerik.Windows.Controls.DataControl.set_ItemsSource(Object value)
em TSB_Test.Content.DealsMonitoring.DealsMonitoring.client_GetMonitoringDealsUsingPaginationTEMPCompleted(Object sender, GetMonitoringDealsUsingPaginationTEMPCompletedEventArgs e)
em TSB_Test.Comercial.ComercialServiceClient.OnGetMonitoringDealsUsingPaginationTEMPCompleted(Object state)}
Any idea why?
Thanks.