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wsod when changing a datacontext if the gridview has a grouped column

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GridView

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Jeremy asked on 23 Apr 2012, 11:22 PM

I am using a gridview to display an entitycollection, if i remove an item from the entitycollection and re bind the datacontext it works fine, unless the gridview has a grouped column in which case I get the WSOD, or the following stacktrace on my development machine, any ideas?

System.Reflection.TargetInvocationException was unhandled by user code
Message=Exception has been thrown by the target of an invocation.
StackTrace:
       at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)
       at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks)
       at System.Delegate.DynamicInvokeImpl(Object[] args)
       at System.Delegate.DynamicInvoke(Object[] args)
       at ScheduledSessionsxaml.BindingOperation(Object BindingState, Int32 , Action )
InnerException: System.ArgumentException
       Message=Value does not fall within the expected range.
       StackTrace:
            at MS.Internal.XcpImports.MethodEx(IntPtr ptr, String name, CValue[] cvData)
            at MS.Internal.XcpImports.MethodEx(DependencyObject obj, String name)
            at System.Windows.UIElement.UpdateLayout()
            at Telerik.Windows.Controls.GridView.GridViewDataControl.OnItemsSourceChanged(Object oldValue, Object newValue)
            at Telerik.Windows.Controls.DataControl.OnItemsSourcePropertyChanged(DependencyObject origin, DependencyPropertyChangedEventArgs args)
            at Telerik.Windows.PropertyMetadata.PropertyChangeHook.OnPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
            at System.Windows.DependencyObject.RaisePropertyChangeNotifications(DependencyProperty dp, Object oldValue, Object newValue)
            at System.Windows.DependencyObject.UpdateEffectiveValue(DependencyProperty property, EffectiveValueEntry oldEntry, EffectiveValueEntry& newEntry, ValueOperation operation)
            at System.Windows.DependencyObject.RefreshExpression(DependencyProperty dp)
            at System.Windows.Data.BindingExpression.SendDataToTarget()
            at System.Windows.Data.BindingExpression.SourceAcquired()
            at System.Windows.Data.Debugging.BindingBreakPoint.<>c__DisplayClass4.<BreakOnSharedType>b__3()
       InnerException:

One option might be to capture the grouped column state, remove it and reapply after the datacontext is updated

4 Answers, 1 is accepted

answered on 24 Apr 2012, 10:08 AM

Hi Thanks for looking at this,

My data is an entitycollection derived from a standard domaindatasource, when changes are submitted or dataloaded it fires a trigger which reapplys the datacontext, this works fine if the grid view does not have a grouped column.

My xaml looks like this

<telerik:RadGridView x:Name="dgdScheduled" RowDetailsVisibilityMode="VisibleWhenSelected" telerik:StyleManager.Theme="Metro" Margin="0" BorderThickness="0" GridLinesVisibility="None" IsReadOnly="True" AutoGenerateColumns="False" RowIndicatorVisibility="Collapsed" ActionOnLostFocus="None" CanUserInsertRows="False" CanUserDeleteRows="False" ItemsSource="{Binding}" BorderBrush="{x:Null}" GroupRowStyle="{StaticResource Metro_GridViewGroupRowStyle1}" EditTriggers="None" >

<telerik:RadGridView.Columns>

<telerik:GridViewDataColumn x:Name="DayColumn" Width="Auto" UniqueName="DayColumn" DataMemberBinding="{Binding Day}" Header="Day" ShowColumnWhenGrouped="False">

<telerik:GridViewDataColumn.CellTemplate>

<DataTemplate>

<TextBlock Text="{Binding Day, Converter={StaticResource myLongDayConverter}}" />

</DataTemplate>

</telerik:GridViewDataColumn.CellTemplate>

<telerik:GridViewDataColumn.GroupHeaderTemplate>

<DataTemplate>

<TextBlock Text="{Binding Group.Key, Converter={StaticResource myLongDayConverter}}" />

</DataTemplate>

</telerik:GridViewDataColumn.GroupHeaderTemplate>

</telerik:GridViewDataColumn>

<telerik:GridViewDataColumn x:Name="StartTimeColumn" DataMemberBinding="{Binding StartTime, Converter={StaticResource myTimeConverter}}" Header="Start" Width="SizeToHeader" />

<telerik:GridViewDataColumn x:Name="EndTimeColumn" DataMemberBinding="{Binding EndTime, Converter={StaticResource myTimeConverter}}" Header="End" Width="SizeToHeader" />

<telerik:GridViewDataColumn x:Name="DescriptionColumn" DataMemberBinding="{Binding Converter={StaticResource myDescriptionDisplayConverter}}" Header="Description" Width="250" />

<telerik:GridViewDataColumn x:Name="PATotalColumn" DataMemberBinding="{Binding PAtotal, Converter={StaticResource myTwoDPConverter}}" Header="PA" />

</telerik:RadGridView.Columns>

<!--telerik:RadGridView.GroupDescriptors>

<telerik:ColumnGroupDescriptor Column="{Binding Columns[\DayColumn\], ElementName=dgdScheduled}" SortDirection="Ascending" />

</telerik:RadGridView.GroupDescriptors-->

<telerik:RadGridView.RowDetailsTemplate>

<DataTemplate>

<Border BorderBrush="{StaticResource BodyTextColorBrush}" BorderThickness="1" CornerRadius="2">

<Grid>

<Grid.ColumnDefinitions>

<ColumnDefinition Width="10"/>

<ColumnDefinition Width="100"/>

<ColumnDefinition/>

<ColumnDefinition Width="10"/>

</Grid.ColumnDefinitions>

<Grid.RowDefinitions>

<RowDefinition />

<RowDefinition Height="2"/>

</Grid.RowDefinitions>

<TextBlock Text="Category : " Grid.Row="0" Grid.Column="1"/>

<TextBlock Text="Location : " Grid.Row="1" Grid.Column="1"/>

<TextBlock Text="Provided by : " Grid.Row="2" Grid.Column="1"/>

<TextBlock Text="Provided for : " Grid.Row="3" Grid.Column="1"/>

<TextBlock x:Name="txtUnCategoryStringColumn" Text="{Binding CategoryString}" Grid.Row="0" Grid.Column="2"/>

<TextBlock x:Name="txtUnLocationStringColumn" Text="{Binding Converter={StaticResource mySessionToLocationDisplayConverter}}" Grid.Row="1" Grid.Column="2"/>

<TextBlock x:Name="txtUnServiceStringColumn" Text="{Binding ServiceString}" Grid.Row="2" Grid.Column="2"/>

<TextBlock x:Name="txtUnProvidedForStringColumn" Text="{Binding ProvidedForString}" Grid.Row="3" Grid.Column="2"/>

</Grid>

</Border>

</DataTemplate>

</telerik:RadGridView.RowDetailsTemplate>

</telerik:RadGridView>

One option may be to remove and then reapply the grouping as below, but I am unable remove the grouping

'get grouping

Dim colgroups As New Telerik.Windows.Data.GroupDescriptorCollection

For Each c As Telerik.Windows.Controls.GridView.ColumnGroupDescriptor In dgdScheduled.GroupDescriptors

Dim temp As New Telerik.Windows.Controls.GridView.ColumnGroupDescriptor

With temp

.Column = c.Column

.DisplayContent = c.DisplayContent

.SortDirection = c.SortDirection

End With

colgroups.Add(temp)

Next

'remove grouping

For Each c In colgroups

dgdScheduled.GroupDescriptors.Remove(c)

Next

'reapply datacontext

dgdScheduled.DataContext = From c As tblSession In Datastore.myJobPlanSessionsDDS.Sessions Where c.SessionType = CInt(1)

'reapply grouping

For Each c In colgroups

dgdScheduled.GroupDescriptors.Add(c)

Next

dgdScheduled.ExpandAllGroups()

Accepted