This is a migrated thread and some comments may be shown as answers.

Issue with RiaDomainService_LoadedData

6 Answers 132 Views

GridView

This is a migrated thread and some comments may be shown as answers.

This question is locked. New answers and comments are not allowed.

Paresh Sen asked on 11 Jan 2010, 07:05 PM

Hi,

I'm using RadGridView with RiaDomainService for data binding.

On the LoadedData method getting the below error.

Any pointers will be of great help.

Message: System.Reflection.TargetInvocationException: An exception occurred during the operation, making the result invalid. Check InnerException for exception details. ---> System.InvalidOperationException: No method 'Count' on type 'System.Linq.Queryable' is compatible with the supplied arguments.

at System.Linq.Expressions.Expression.FindMethod(Type type, String methodName, Type[] typeArgs, Expression[] args, BindingFlags flags)

at System.Linq.Expressions.Expression.Call(Type type, String methodName, Type[] typeArguments, Expression[] arguments)

at Telerik.Windows.Data.QueryableExtensions.Count(IQueryable source)

at Telerik.Windows.Data.QueryableCollectionView.UpdateTotalItemCount()

at Telerik.Windows.Data.QueryableCollectionView.UpdateTotalItemCount(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.Specialized.NotifyCollectionChangedEventHandler.Invoke(Object sender, NotifyCollectionChangedEventArgs e)

at System.Windows.Controls.Ria.DomainDataSourceView.OnCollectionChanged(NotifyCollectionChangedEventArgs e)

at System.Windows.Controls.Ria.DomainDataSourceView.OnCollectionViewCollectionChanged(Object sender, NotifyCollectionChangedEventArgs e)

at System.Windows.Data.EntityCollectionView.OnCollectionChanged(NotifyCollectionChangedEventArgs args)

at System.Windows.Data.EntityCollectionView.RefreshView()

at System.Windows.Data.EntityCollectionView.RefreshOrDefer()

at System.Windows.Data.EntityCollectionView.ProcessCollectionChanged(NotifyCollectionChangedEventArgs args)

at System.Windows.Data.EntityCollectionView.<.ctor>b__0(Object sender, NotifyCollectionChangedEventArgs args)

at System.Windows.Controls.PagedEntityCollection.RaiseCollectionChanged(NotifyCollectionChangedAction action, Entity entity, Int32 index)

at System.Windows.Controls.PagedEntityCollection.CompleteLoad()

at System.Windows.Controls.DomainDataSource.ProcessLoadedEntities(LoadContext loadContext, IEnumerable`1 entities)

at System.Windows.Controls.DomainDataSource.DomainContext_Loaded(LoadedDataEventArgs e, LoadContext loadContext)

--- End of inner exception stack trace ---

at System.Windows.Ria.OperationBase.InvokeCompleteAction()

at System.Windows.Ria.OperationBase.Complete(Object result)

at System.Windows.Ria.LoadOperation.Complete(DomainClientResult result)

at System.Windows.Ria.DomainContext.CompleteLoad(IAsyncResult asyncResult)

at System.Windows.Ria.DomainContext.<>c__DisplayClass17.<Load>b__13(Object )

Thanks,
Paresh

6 Answers, 1 is accepted

answered on 12 Jan 2010, 08:56 AM

Hi Vlad,

Find the details:

<telerik:RadGridView x:Name="radGridViewAssociatedUsers"
                              ColumnsWidthMode="Fill"
                              RowIndicatorVisibility="Collapsed"
                              HorizontalAlignment="Stretch" RowDetailsVisibilityMode="VisibleWhenSelected"
                              IsReadOnly="True" AutoGenerateColumns="False"
                              RowDetailsVisibilityChanged="radGridViewAssociatedUsers_RowDetailsVisibilityChanged"
                              ItemsSource="{Binding Data, ElementName=riaDsAssocaitedUsers}" IsFilteringAllowed="True"
                              Filtering="UsersSearchGrid_Filtering"
                              CanUserReorderColumns="False"
                              FontFamily="Segoe UI" FontSize="13.333"
                              BorderThickness="2"
                              BorderBrush="#FF506266"
                              Background="White"
                              Foreground="#FF506266"
                              UseAlternateRowStyle="True"
                              GroupPanelForeground="White"
                              GroupPanelBackground="#FF92A68A"
                              AlternateExpandableRowStyle="{StaticResource GridViewAlternateExpandableRowStyle}"
                              AlternateRowStyle="{StaticResource GridViewAlternateRowStyle}"
                              ExpandableRowStyle="{StaticResource GridViewExpandableRowStyle}"
                              GroupPanelItemStyle="{StaticResource GridViewGroupPanelItemStyle}"
                              GroupRowStyle="{StaticResource GridViewGroupRowStyle}"
                              HeaderRowStyle="{StaticResource GridViewHeaderRowStyle}"
                              RowDetailsStyle="{StaticResource GridViewRowDetailStyle}"
                              RowStyle="{StaticResource GridViewRowStyle}"
                              ShowColumnHeaders="True"
                              ShowGroupFooters="True"
                              ShowGroupPanel="True">

<riaControls:DomainDataSource x:Name="riaDsAssocaitedUsers"
                                AutoLoad="True"
                                LoadSize="40"
                                Margin="-1,0,1,0"
                                LoadingData="riaDsAssocaitedUsers_LoadingData"
                                LoadedData="riaDsAssocaitedUsers_LoadedData">

                            <riaControls:DomainDataSource.DomainContext>
                                <ds:DomainContext/>
                            </riaControls:DomainDataSource.DomainContext>

                           <riaControls:DomainDataSource.FilterDescriptors>
                                <riaData:FilterDescriptorCollection LogicalOperator="Or" />
                            </riaControls:DomainDataSource.FilterDescriptors>
</riaControls:DomainDataSource>

private void riaDsAssocaitedUsers_LoadedData(object sender, LoadedDataEventArgs e)
        {
                //Here e throws TargetInvokationException for operations
                // e.Entities.ToList().Count and similar operations

}

Thanks,
Paresh