次のデータ グリッドがありますが、エラーが発生し続けます。なんで ？
<TabControl Name="tabContent" TabStripPlacement="Bottom">
<TabItem Header="Information">
<DataGrid x:Name="gridInformation" AutoGenerateColumns="False">
<DataGrid.Columns>
<DataGridTemplateColumn Header="Address">
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<TextBlock Text="{Binding Address}"></TextBlock>
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>
</DataGrid.Columns>
</DataGrid>
</TabItem>
</TabControl>
ここにエラーがあります
System.InvalidOperationException was unhandled
Message=The specified Visual is not an ancestor of this Visual.
Source=PresentationCore
StackTrace:
at System.Windows.Media.Visual.TrySimpleTransformToAncestor(Visual ancestor, Boolean inverse, GeneralTransform& generalTransform, Matrix& simpleTransform)
at System.Windows.Media.Visual.TransformToAncestor(Visual ancestor)
at System.Windows.Controls.DataGridCellsPanel.ComputeCellsPanelHorizontalOffset()
at System.Windows.Controls.DataGridHelper.GetParentCellsPanelHorizontalOffset(IProvideDataGridColumn cell)
at System.Windows.Controls.DataGrid.InvalidateCellsPanelHorizontalOffset(Object args)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.DispatcherOperation.InvokeImpl()
at System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext(Object state)
at System.Threading.ExecutionContext.runTryCode(Object userData)
at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData)
at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
at System.Windows.Threading.DispatcherOperation.Invoke()
at System.Windows.Threading.Dispatcher.ProcessQueue()
at System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam, Boolean& handled)
at MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
at System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
at MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
at System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
at MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
InnerException:
問題の原因となったテーマの部分は次のとおりです。
<Grid Background="{TemplateBinding Background}" x:Name="Root">
<Grid.Resources>
<ControlTemplate x:Key="TopLeftHeaderTemplate" TargetType="DataGridColumnHeader">
<Grid Margin="1">
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition Height="*" />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="*" />
<ColumnDefinition Width="Auto" />
</Grid.ColumnDefinitions>
<Rectangle x:Name="Background" Opacity="0.65" Grid.ColumnSpan="3" Grid.RowSpan="3">
<Rectangle.Fill>
<LinearGradientBrush EndPoint="0.5,1.4" StartPoint="0.5,0">
<GradientStop Color="{StaticResource PrimaryColor}" Offset="0.75" />
<GradientStop Color="{StaticResource SecondaryColor}" Offset="1" />
</LinearGradientBrush>
</Rectangle.Fill>
</Rectangle>
<Border CornerRadius="0,0,40,40" x:Name="Highlight" RenderTransformOrigin="0.5,1" Grid.ColumnSpan="3">
<Border.Background>
<RadialGradientBrush>
<RadialGradientBrush.RelativeTransform>
<TransformGroup>
<ScaleTransform CenterX="0.5" CenterY="0.5" ScaleX="1.25" ScaleY="2" />
<TranslateTransform Y="-0.6" />
</TransformGroup>
</RadialGradientBrush.RelativeTransform>
<GradientStop Color="#BFFFFFFF" Offset="0" />
<GradientStop Color="#4CFFFFFF" Offset="1" />
</RadialGradientBrush>
</Border.Background>
</Border>
</Grid>
</ControlTemplate>
<ControlTemplate x:Key="TopRightHeaderTemplate" TargetType="DataGridColumnHeader">
<Grid Margin="1">
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition Height="*" />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="*" />
<ColumnDefinition Width="Auto" />
</Grid.ColumnDefinitions>
<Rectangle x:Name="Background" Opacity="0.65" Grid.ColumnSpan="3" Grid.RowSpan="3">
<Rectangle.Fill>
<LinearGradientBrush EndPoint="0.5,1.4" StartPoint="0.5,0">
<GradientStop Color="{StaticResource PrimaryColor}" Offset="0.75" />
<GradientStop Color="{StaticResource SecondaryColor}" Offset="1" />
</LinearGradientBrush>
</Rectangle.Fill>
</Rectangle>
<Border CornerRadius="0,0,40,40" x:Name="Highlight" RenderTransformOrigin="0.5,1" Grid.ColumnSpan="3">
<Border.Background>
<RadialGradientBrush>
<RadialGradientBrush.RelativeTransform>
<TransformGroup>
<ScaleTransform CenterX="0.5" CenterY="0.5" ScaleX="1.25" ScaleY="2" />
<TranslateTransform Y="-0.6" />
</TransformGroup>
</RadialGradientBrush.RelativeTransform>
<GradientStop Color="#BFFFFFFF" Offset="0" />
<GradientStop Color="#4CFFFFFF" Offset="1" />
</RadialGradientBrush>
</Border.Background>
</Border>
</Grid>
</ControlTemplate>
</Grid.Resources>
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="*" />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="*" />
<ColumnDefinition Width="Auto" />
</Grid.ColumnDefinitions>
<primitives:DataGridColumnHeader x:Name="TopLeftCornerHeader" Width="22" Template="{StaticResource TopLeftHeaderTemplate}" />
<primitives:DataGridColumnHeadersPresenter Grid.Column="1" x:Name="ColumnHeadersPresenter" />
<primitives:DataGridColumnHeader Grid.Column="2" x:Name="TopRightCornerHeader" Template="{StaticResource TopRightHeaderTemplate}" />
<Rectangle Grid.ColumnSpan="3" Height="1" x:Name="ColumnHeadersAndRowsSeparator" VerticalAlignment="Bottom" Width="Auto" Fill="#FFDBDCDC" StrokeThickness="1" />
<ScrollViewer Grid.ColumnSpan="2" Grid.Row="1" Padding="{TemplateBinding Padding}" Focusable="false" HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Auto" x:Name="scrollViewer">
<ItemsPresenter x:Name="ItemsPresenter" />
</ScrollViewer>
<Rectangle Grid.Column="2" Grid.Row="2" x:Name="BottomRightCorner" Fill="{TemplateBinding Background}" />
<Rectangle Grid.ColumnSpan="2" Grid.Row="2" x:Name="BottomLeftCorner" Fill="{TemplateBinding Background}" />
<Grid Grid.Column="1" Grid.Row="2">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<Rectangle x:Name="FrozenColumnScrollBarSpacer" />
<ScrollBar Grid.Column="1" Height="18" Margin="0" x:Name="HorizontalScrollbar" Orientation="Horizontal" Visibility="{TemplateBinding HorizontalScrollBarVisibility}" />
</Grid>-->
</Grid>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>