WPF中绑定的Markup.IStyle.Connector.Connect错误 [英] Markup.IStyle.Connector.Connect error on binding in WPF

问题描述

好时光
我在WPF中的数据绑定有问题。
如果我使用绑定：

 < TextBlock Text ={Binding Key}TextTrimming =CharacterEllipsis
 MaxWidth ={Binding ActualWidth，RelativeSource = {RelativeSource 
 AncestorType = {x：Type Expander}}，Converter = {StaticResource string_cutter_width}}/> 
  

在下面的代码中我有一个 Markup.IStyle.Connector.Connect 错误在一些电脑上。
我不明白为什么
如果你遇到这样的行为或有一些想法。请分享。

 < DataGridTemplateColumn Header ={x：Static res：Resources.status_col_header}Width =1 *> 
< DataGridTemplateColumn.CellTemplate> 
< DataTemplate> 
< DataTemplate.Resources> 
< local：Localizer2 x：Key =Localizer2/> 
< /DataTemplate.Resources> 
< Expander Header ={Binding status.Text，Converter = {StaticResource Localizer2}}MouseEnter =Expander_MouseEnterTag ={Binding}> 
< TreeView x：Name =GTreeItemsSource ={Binding status.files}ScrollViewer.Horizo​​ntalScrollBarVisibility =Hidden> 
< TreeView.ItemTemplate> 
< DataTemplate> 
< StackPanel Orientation =Horizo​​ntalClipToBounds =FalseIsHitTestVisible =trueMargin =1> 
< StackPanel Orientation =Vertical> 
< StackPanel.Resources> 
< local：string_cutter_width x：Key =string_cutter_width/> 
< /StackPanel.Resources> 
< TextBlock Text ={Binding Key}TextTrimming =CharacterEllipsisMaxWidth ={Binding ActualWidth，RelativeSource = {RelativeSource AncestorType = {x：Type Expander}}，Converter = {StaticResource string_cutter_width}} > 
< TextBlock Text ={Binding Value}TextTrimming =CharacterEllipsisMaxWidth ={Binding ActualWidth，RelativeSource = {RelativeSource AncestorType = {x：Type Expander}}，Converter = {StaticResource string_cutter_width}} > 
<！ - < TextBlock Text ={Binding Key}TextTrimming =CharacterEllipsis/> 
< TextBlock Text ={Binding Value}TextTrimming =CharacterEllipsis/>  - > 
< / StackPanel> 
< StackPanel Orientation =VerticalHorizo​​ntalAlignment =RightVerticalAlignment =Center> 
< StackPanel.Resources> 
< local：del_label_converter x：Key =del_label_converter/> 
< /StackPanel.Resources> 
<！ - < Image Source =Resources\delete_16.pngStretch =UniformToFillPreviewMouseUp =Image_MouseUpWidth =16Height =16Tag ={Binding} ={Binding IsEnabled，ElementName = start_btn，Converter = {StaticResource del_label_converter}}/>  - > 
< Image Source =Resources\delete_16.pngStretch =UniformToFillPreviewMouseUp =Image_MouseUpWidth =16Height =16Tag ={Binding}/> 
< / StackPanel> 
< / StackPanel> 
< / DataTemplate> 
< /TreeView.ItemTemplate> 
< / TreeView> 
< / Expander> 
< / DataTemplate> 
< /DataGridTemplateColumn.CellTemplate> 
< / DataGridTemplateColumn> 
< /DataGrid.Columns> 
 
< DataGrid.ContextMenu> 
< ContextMenu> 
< MenuItem Header =ПроверкаподключенияCamDriveClick =MenuItem_ClickIsEnabled ={Binding Path = camdrive_can_be_chk_manually}/> 
<！ - < MenuItem Header =ПерезагрузкакамерыClick =RebootCamera_Click/>  - > 
< / ContextMenu> 
< /DataGrid.ContextMenu> 
< / DataGrid> 
  

调用堆栈：

  Camdrive.UpgradeTools.MainWindow.System.Windows.Markup.IStyleConnector.Connect（Int32 connectionId，Object target）вc：\Develop\Camdrive.Utils\Camdrive.UpgradeTools\Camdrive.UpgradeTools \MainWindow.xaml：строка75 
ÂSystem.Windows.FrameworkTemplate.LoadTemplateXaml（XamlReader templateReader，XamlObjectWriter currentWriter）
вSystem.Windows.FrameworkTemplate.LoadTemplateXaml（XamlObjectWriter objectWriter）
вSystem。 Windows.FrameworkTemplate.LoadOptimizedTemplateContent（DependencyObject container，IComponentConnector componentConnector，IStyleConnector styleConnector，List`1 affectedChildren，UncommonField`1 templatedNonFeChildrenField）
 System.Windows.FrameworkTemplate.LoadContent（DependencyObject容器，List`1 affectedChildren）
 вSystem.Windows.StyleHelper.ApplyTemplateContent（UncommonField`1 dataField，DependencyObject container，FrameworkElementF actory templateRoot，Int32 lastChildIndex，HybridDictionary childIndexFromChildID，FrameworkTemplate frameworkTemplate）
вSystem.Windows.FrameworkTemplate.ApplyTemplateContent（UncommonField`1 templateDataField，FrameworkElement container）
вSystem.Windows.FrameworkElement.ApplyTemplate（）
вSystem.Windows.FrameworkElement.MeasureCore（Size availableSize）
ÂSystem.Windows.UIElement.Measure（Size availableSize）
вMS.Internal.Helper.MeasureElementWithSingleChild（UIElement element，Size constraint）
вSystem.Windows.Controls.ContentPresenter.MeasureOverride（Size constraint）
ÂSystem.Windows.FrameworkElement.MeasureCore（Size availableSize）
ÂSystem.Windows.UIElement.Measure（Size availableSize）
вSystem.Windows.Controls.Border.MeasureOverride（Size constraint）
ÂSystem.Windows.FrameworkElement.MeasureCore（Size availableSize）
ÂSystem.Windows.UIElement.Measure（Size availableSize）
 System.Windows.Controls.Control.MeasureOverri de（Size constraint）
ÂSystem.Windows.Controls.DataGridCell.MeasureOverride（Size constraint）
ÂSystem.Windows.FrameworkElement.MeasureCore（Size availableSize）
вSystem.Windows.UIElement。测量（Size availableSize）
вSystem.Windows.Controls.DataGridCellsPanel.MeasureChild（UIElement child，Size constraint）
вSystem.Windows.Controls.DataGridCellsPanel.GenerateChild（IItemContainerGenerator Generator，Size constraint，DataGridColumn column， Int32& childIndex，Size& childSize）
ÂSystem.Windows.Controls.DataGridCellsPanel.GenerateChildren（IItemContainerGenerator生成器，Int32 startIndex，Int32 endIndex，Size约束）
ÂSystem.Windows.Controls.DataGridCellsPanel.GenerateAndMeasureChildrenForRealizedColumns（Size constraint）
 System.Windows.Controls.DataGridCellsPanel.MeasureOverride（Size constraint）
ÂSystem.Windows.FrameworkElement.MeasureCore（Size availableSize）
ÂSystem.Windows.UIElement.Measure（Size availableSize）
вMS.Internal.Helper.MeasureElementWithSingleChild（UIElement element，Size constraint）
ÂSystem.Windows.Controls.ItemsPresenter.MeasureOverride（Size constraint）
вSystem.Windows.FrameworkElement.MeasureCore（Size availableSize） 
вSystem.Windows.UIElement.Measure（Size availableSize）
вSystem.Windows.Controls.Control.MeasureOverride（Size constraint）
вSystem.Windows.Controls.Primitives.DataGridCellsPresenter.MeasureOverride （Size availableSize）
вSystem.Windows.F rameworkElement.MeasureCore（Size availableSize）
ÂSystem.Windows.UIElement.Measure（Size availableSize）
вSystem.Windows.Controls.Grid.MeasureCell（Int32 cell，Boolean forceInfinityV）
в系统.Windows.Controls.Grid.MeasureCellsGroup（Int32 cellsHead，Size referenceSize，Boolean ignoreDesiredSizeU，Boolean forceInfinityV）
вSystem.Windows.Controls.Grid.MeasureOverride（Size constraint）
ÂSystem.Windows.FrameworkElement。 MeasureCore（Size availableSize）
ÂSystem.Windows.UIElement.Measure（Size availableSize）
ÂSystem.Windows.Controls.Border.MeasureOverride（Size constraint）
ÂSystem.Windows.FrameworkElement。 MeasureCore（Size availableSize）
ÂSystem.Windows.UIElement.Measure（Size availableSize）
вSystem.Windows.Controls.Control.MeasureOverride（Size constraint）
ÂSystem.Windows.FrameworkElement。 MeasureCore（Size availableSize）
ÂSystem.Windows.UIElement.Measure（Size availableSize）
вSystem.Windows.Controls.VirtualizingStac kPanel.MeasureOverride（Size约束）
ÂSystem.Windows.Controls.Primitives.DataGridRowsPresenter.MeasureOverride（Size constraint）
ÂSystem.Windows.FrameworkElement.MeasureCore（Size availableSize）
вSystem。 Windows.UIElement.Measure（Size availableSize）
ÂSystem.Windows.ContextLayoutManager.UpdateLayout（）
ÂSystem.Windows.ContextLayoutManager.UpdateLayoutCallback（Object arg）
ÂSystem.Windows.Media。 MediaContext.InvokeOnRenderCallback.DoWork（）
 System.Windows.Media.MediaContext.FireInvokeOnRenderCallbacks（）
ÂSystem.Windows.Media.MediaContext.RenderMessageHandlerCore（Object resizedCompositionTarget）
ÂSystem.Windows。 Media.MediaContext.RenderMessageHandler（Object resizedCompositionTarget）
вSystem.Windows.Threading.ExceptionWrapper.InternalRealCall（Delegate callback，Object args，Int32 numArgs）
вMS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen（Object source ，Delegate方法，Object args，Int32 numArgs，Delegate ca tchHandler）
вSystem.Windows.Threading.DispatcherOperation.InvokeImpl（）
вSystem.Windows.Threading.DispatcherOperation.InvokeInSecurityContext（Object state）
вSystem.Threading.ExecutionContext.runTryCode（Object userData）
 System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup（TryCode代码，CleanupCode backoutCode，Object userData）
 System.Threading.ExecutionContext.RunInternal（ExecutionContext executionContext，ContextCallback callback，Object state）
вSystem.Threading.ExecutionContext.Run（ExecutionContext executionContext，ContextCallback callback，Object state，Boolean ignoreSyncCtx）
вSystem.Threading.ExecutionContext.Run（ExecutionContext executionContext，ContextCallback callback，Object state）
в System.Windows.Threading.DispatcherOperation.Invoke（）
ÂSystem.Windows.Threading.Dispatcher.ProcessQueue（）
вSystem.Windows.Threading.Dispatcher.WndProcHook（IntPtr hwnd，Int32 msg，IntPtr wParam ，IntPtr lParam，Boolean&处理）
вMS.Win32.HwndWrapper.WndProc（IntPtr hwnd，Int32 msg，IntPtr wParam，IntPtr lParam，Boolean&被处理）
вMS.Win32.HwndSubclass.DispatcherCallbackOperation（Object o）
 System.Windows.Threading.ExceptionWrapper.InternalRealCall（Delegate callback，Object args，Int32 numArgs）
вMS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen（Object source，Delegate method，Object args，Int32 numArgs，Delegate catchHandler ）
вSystem.Windows.Threading.Dispatcher.InvokeImpl（DispatcherPriority priority，TimeSpan timeout，Delegate method，Object args，Int32 numArgs）
вMS.Win32.HwndSubclass.SubclassWndProc（IntPtr hwnd，Int32 msg， IntPtr wParam，IntPtr lParam）
вMS.Win32.UnsafeNativeMethods.DispatchMessage（MSG& msg）
ÂSystem.Windows.Threading.Dispatcher.PushFrameImpl（DispatcherFrame框架）
ÂSystem.Windows。 Threading.Dispatcher.PushFrame（DispatcherFrame frame）
вSystem.Windows.Application.RunDispatcher（Object ignore）
вSy （Windows窗口）
 System.Windows.Application.Run（窗口窗口）
 System.Windows.Application.Run（）
çCamdrive.UpgradeTools。 App.Main（）C：\Develop\Camdrive.Utils\Camdrive.UpgradeTools\Camdrive.UpgradeTools\obj\x86\Debug\App.g.cs：строка0 
в System.AppDomain._nExecuteAssembly（RuntimeAssembly assembly，String [] args）
ÂSystem.AppDomain.ExecuteAssembly（String assemblyFile，Evidence assemblySecurity，String [] args）
вMicrosoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly （）
ÂSystem.Threading.ThreadHelper.ThreadStart_Context（Object state）
вSystem.Threading.ExecutionContext.Run（ExecutionContext executionContext，ContextCallback callback，Object state，Boolean ignoreSyncCtx）
вSystem。 Threading.ExecutionContext.Run（ExecutionContext executionContext，ContextCallback callback，Object state）
вSystem.Threading.ThreadHelper.ThreadStart（）
  

解决方案

很可能是因为嵌套模板：

CellTemplate - > DataTemplate - > ... - > TreeView - > TreeView.ItemTemplate - > DataTemplate

引用 this ：

此错误需要模板中的模板。查看此问题的一个好方法模板就像括号，引用括号模板XAML未创建，但保存并稍后运行。因此，错误是：我们在嵌套括号中出现问题。

在示例中：

 < Grid> 
< ListBox ItemsSource ={StaticResource Data}> 
< ListBox.ItemTemplate> 
< DataTemplate> 
< ListBox ItemsSource ={Binding。}> 
< ListBox.ItemTemplate> 
< DataTemplate> 
< TextBlock Text ={Binding。}Width =30
 Loaded =TextBlock_Loaded
 Style ={StaticResource TextBlockStyle}/> 
< / DataTemplate> 
< /ListBox.ItemTemplate> 
< / ListBox> 
< / DataTemplate> 
< /ListBox.ItemTemplate> 
< / ListBox> 
< / Grid> 
  

内部模板仍然是引用外部模板被应用。然而，我们仍然为所有的XAML调用IStyleConnector.Connect（）（当我们点击内括号/ quote 时不停止），并且没有TextBlock实例，所以我们崩溃

由于优化的模板共享，怪异发生在重现。例如，如果您删除：

  Style ={StaticResource TextBlockStyle}
  

该错误消失，因为TextBlock在模板优化器中变为可共享。

WorkAround：

最好的工作是将内部模板移动到资源中。

尝试在资源中移动您的 TreeView.ItemTemplate

Good time. I have a problem with data binding in WPF. If i use binding:

<TextBlock Text="{Binding Key}" TextTrimming="CharacterEllipsis" 
MaxWidth="{Binding ActualWidth, RelativeSource={RelativeSource 
AncestorType={x:Type Expander}}, Converter={StaticResource string_cutter_width}}"/>

in code below I have a Markup.IStyle.Connector.Connect error on some computers. I can't understand why. If you met such behavior or have some ideas about it. PLEASE SHARE.

            <DataGridTemplateColumn Header="{x:Static res:Resources.status_col_header}" Width="1*">
                <DataGridTemplateColumn.CellTemplate>
                    <DataTemplate>
                        <DataTemplate.Resources>
                            <local:Localizer2 x:Key="Localizer2" />
                        </DataTemplate.Resources>
                        <Expander Header="{Binding status.Text, Converter={StaticResource Localizer2}}" MouseEnter="Expander_MouseEnter" Tag="{Binding}">
                            <TreeView x:Name="GTree" ItemsSource="{Binding status.files}" ScrollViewer.HorizontalScrollBarVisibility="Hidden">
                                <TreeView.ItemTemplate>
                                    <DataTemplate>
                                        <StackPanel Orientation="Horizontal" ClipToBounds="False" IsHitTestVisible="true" Margin="1">
                                            <StackPanel Orientation="Vertical">
                                                <StackPanel.Resources>
                                                    <local:string_cutter_width x:Key="string_cutter_width" />
                                                </StackPanel.Resources>
                                                <TextBlock Text="{Binding Key}" TextTrimming="CharacterEllipsis" MaxWidth="{Binding ActualWidth, RelativeSource={RelativeSource AncestorType={x:Type Expander}}, Converter={StaticResource string_cutter_width}}"/>
                                                <TextBlock Text="{Binding Value}" TextTrimming="CharacterEllipsis" MaxWidth="{Binding ActualWidth, RelativeSource={RelativeSource AncestorType={x:Type Expander}}, Converter={StaticResource string_cutter_width}}"/>
                                                <!--<TextBlock Text="{Binding Key}" TextTrimming="CharacterEllipsis"/>
                                                <TextBlock Text="{Binding Value}" TextTrimming="CharacterEllipsis"/>-->
                                            </StackPanel >
                                            <StackPanel Orientation="Vertical" HorizontalAlignment="Right" VerticalAlignment="Center">
                                                <StackPanel.Resources>
                                                    <local:del_label_converter x:Key="del_label_converter" />
                                                </StackPanel.Resources>
                                                <!--<Image Source="Resources\delete_16.png" Stretch="UniformToFill" PreviewMouseUp="Image_MouseUp" Width="16" Height="16" Tag="{Binding}" Visibility="{Binding IsEnabled, ElementName=start_btn, Converter={StaticResource del_label_converter} }"/>-->
                                                <Image Source="Resources\delete_16.png" Stretch="UniformToFill" PreviewMouseUp="Image_MouseUp" Width="16" Height="16" Tag="{Binding}"/>
                                            </StackPanel>
                                        </StackPanel>
                                    </DataTemplate>
                                </TreeView.ItemTemplate>
                            </TreeView>
                        </Expander>
                    </DataTemplate>
                </DataGridTemplateColumn.CellTemplate>
            </DataGridTemplateColumn>
        </DataGrid.Columns>

        <DataGrid.ContextMenu>
            <ContextMenu>
                <MenuItem Header="Проверка подключения CamDrive" Click="MenuItem_Click" IsEnabled="{Binding Path=camdrive_can_be_chk_manually}"/>
                <!--<MenuItem Header="Перезагрузка камеры" Click="RebootCamera_Click"/>-->
            </ContextMenu>
        </DataGrid.ContextMenu>
    </DataGrid>

call stack:

в Camdrive.UpgradeTools.MainWindow.System.Windows.Markup.IStyleConnector.Connect(Int32 connectionId, Object target) в c:\Develop\Camdrive.Utils\Camdrive.UpgradeTools\Camdrive.UpgradeTools\MainWindow.xaml:строка 75
в System.Windows.FrameworkTemplate.LoadTemplateXaml(XamlReader templateReader, XamlObjectWriter currentWriter)
в System.Windows.FrameworkTemplate.LoadTemplateXaml(XamlObjectWriter objectWriter)
в System.Windows.FrameworkTemplate.LoadOptimizedTemplateContent(DependencyObject container, IComponentConnector componentConnector, IStyleConnector styleConnector, List`1 affectedChildren, UncommonField`1 templatedNonFeChildrenField)
в System.Windows.FrameworkTemplate.LoadContent(DependencyObject container, List`1 affectedChildren)
в System.Windows.StyleHelper.ApplyTemplateContent(UncommonField`1 dataField, DependencyObject container, FrameworkElementFactory templateRoot, Int32 lastChildIndex, HybridDictionary childIndexFromChildID, FrameworkTemplate frameworkTemplate)
в System.Windows.FrameworkTemplate.ApplyTemplateContent(UncommonField`1 templateDataField, FrameworkElement container)
в System.Windows.FrameworkElement.ApplyTemplate()
в System.Windows.FrameworkElement.MeasureCore(Size availableSize)
в System.Windows.UIElement.Measure(Size availableSize)
в MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint)
в System.Windows.Controls.ContentPresenter.MeasureOverride(Size constraint)
в System.Windows.FrameworkElement.MeasureCore(Size availableSize)
в System.Windows.UIElement.Measure(Size availableSize)
в System.Windows.Controls.Border.MeasureOverride(Size constraint)
в System.Windows.FrameworkElement.MeasureCore(Size availableSize)
в System.Windows.UIElement.Measure(Size availableSize)
в System.Windows.Controls.Control.MeasureOverride(Size constraint)
в System.Windows.Controls.DataGridCell.MeasureOverride(Size constraint)
в System.Windows.FrameworkElement.MeasureCore(Size availableSize)
в System.Windows.UIElement.Measure(Size availableSize)
в System.Windows.Controls.DataGridCellsPanel.MeasureChild(UIElement child, Size constraint)
в System.Windows.Controls.DataGridCellsPanel.GenerateChild(IItemContainerGenerator generator, Size constraint, DataGridColumn column, Int32& childIndex, Size& childSize)
в System.Windows.Controls.DataGridCellsPanel.GenerateChildren(IItemContainerGenerator generator, Int32 startIndex, Int32 endIndex, Size constraint)
в System.Windows.Controls.DataGridCellsPanel.GenerateAndMeasureChildrenForRealizedColumns(Size constraint)
в System.Windows.Controls.DataGridCellsPanel.MeasureOverride(Size constraint)
в System.Windows.FrameworkElement.MeasureCore(Size availableSize)
в System.Windows.UIElement.Measure(Size availableSize)
в MS.Internal.Helper.MeasureElementWithSingleChild(UIElement element, Size constraint)
в System.Windows.Controls.ItemsPresenter.MeasureOverride(Size constraint)
в System.Windows.FrameworkElement.MeasureCore(Size availableSize)
в System.Windows.UIElement.Measure(Size availableSize)
в System.Windows.Controls.Control.MeasureOverride(Size constraint)
в System.Windows.Controls.Primitives.DataGridCellsPresenter.MeasureOverride(Size availableSize)
в System.Windows.FrameworkElement.MeasureCore(Size availableSize)
в System.Windows.UIElement.Measure(Size availableSize)
в System.Windows.Controls.Grid.MeasureCell(Int32 cell, Boolean forceInfinityV)
в System.Windows.Controls.Grid.MeasureCellsGroup(Int32 cellsHead, Size referenceSize, Boolean ignoreDesiredSizeU, Boolean forceInfinityV)
в System.Windows.Controls.Grid.MeasureOverride(Size constraint)
в System.Windows.FrameworkElement.MeasureCore(Size availableSize)
в System.Windows.UIElement.Measure(Size availableSize)
в System.Windows.Controls.Border.MeasureOverride(Size constraint)
в System.Windows.FrameworkElement.MeasureCore(Size availableSize)
в System.Windows.UIElement.Measure(Size availableSize)
в System.Windows.Controls.Control.MeasureOverride(Size constraint)
в System.Windows.FrameworkElement.MeasureCore(Size availableSize)
в System.Windows.UIElement.Measure(Size availableSize)
в System.Windows.Controls.VirtualizingStackPanel.MeasureOverride(Size constraint)
в System.Windows.Controls.Primitives.DataGridRowsPresenter.MeasureOverride(Size constraint)
в System.Windows.FrameworkElement.MeasureCore(Size availableSize)
в System.Windows.UIElement.Measure(Size availableSize)
в System.Windows.ContextLayoutManager.UpdateLayout()
в System.Windows.ContextLayoutManager.UpdateLayoutCallback(Object arg)
в System.Windows.Media.MediaContext.InvokeOnRenderCallback.DoWork()
в System.Windows.Media.MediaContext.FireInvokeOnRenderCallbacks()
в System.Windows.Media.MediaContext.RenderMessageHandlerCore(Object  resizedCompositionTarget)
в System.Windows.Media.MediaContext.RenderMessageHandler(Object resizedCompositionTarget)
в System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object args, Int32 numArgs)
в MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
в System.Windows.Threading.DispatcherOperation.InvokeImpl()
в System.Windows.Threading.DispatcherOperation.InvokeInSecurityContext(Object state)
в System.Threading.ExecutionContext.runTryCode(Object userData)
в System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData)
в System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
в System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
в System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
в System.Windows.Threading.DispatcherOperation.Invoke()
в System.Windows.Threading.Dispatcher.ProcessQueue()
в System.Windows.Threading.Dispatcher.WndProcHook(IntPtr hwnd, Int32 msg, IntPtr  wParam, IntPtr lParam, Boolean& handled)
в MS.Win32.HwndWrapper.WndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam,  Boolean& handled)
в MS.Win32.HwndSubclass.DispatcherCallbackOperation(Object o)
в System.Windows.Threading.ExceptionWrapper.InternalRealCall(Delegate callback, Object  args, Int32 numArgs)
в MS.Internal.Threading.ExceptionFilterHelper.TryCatchWhen(Object source, Delegate method, Object args, Int32 numArgs, Delegate catchHandler)
в System.Windows.Threading.Dispatcher.InvokeImpl(DispatcherPriority priority, TimeSpan timeout, Delegate method, Object args, Int32 numArgs)
в MS.Win32.HwndSubclass.SubclassWndProc(IntPtr hwnd, Int32 msg, IntPtr wParam, IntPtr lParam)
в MS.Win32.UnsafeNativeMethods.DispatchMessage(MSG& msg)
в System.Windows.Threading.Dispatcher.PushFrameImpl(DispatcherFrame frame)
в System.Windows.Threading.Dispatcher.PushFrame(DispatcherFrame frame)
в System.Windows.Application.RunDispatcher(Object ignore)
в System.Windows.Application.RunInternal(Window window)
в System.Windows.Application.Run(Window window)
в System.Windows.Application.Run()
в Camdrive.UpgradeTools.App.Main() в C:\Develop\Camdrive.Utils\Camdrive.UpgradeTools\Camdrive.UpgradeTools\obj\x86\Debug\App.g.cs:строка 0
в System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
в System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)
в Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()
в System.Threading.ThreadHelper.ThreadStart_Context(Object state)
в System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean ignoreSyncCtx)
в System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
в System.Threading.ThreadHelper.ThreadStart()

解决方案

Most likely it is because of nested templates:

CellTemplate -> DataTemplate -> ... -> TreeView -> TreeView.ItemTemplate -> DataTemplate

Quoting this:

This bug requires a Template in a Template. A good way to look at this problem "Templating is like parentheses, quoting parentheses" the Template XAML is not created but saved and run later. The bug is therefore: We have a problem with nested parentheses.

In the sample:

<Grid>
    <ListBox ItemsSource="{StaticResource Data}" >
        <ListBox.ItemTemplate>
            <DataTemplate>
                <ListBox ItemsSource="{Binding .}">
                    <ListBox.ItemTemplate>
                        <DataTemplate>
                            <TextBlock Text="{Binding .}" Width="30"
                                     Loaded="TextBlock_Loaded"
                                     Style="{StaticResource TextBlockStyle}" />
                        </DataTemplate>
                    </ListBox.ItemTemplate>
                </ListBox>
            </DataTemplate>
        </ListBox.ItemTemplate>
    </ListBox>
</Grid>

The inner template is still quoted when the outer template is applied. Yet we still call IStyleConnector.Connect() for all the XAML (we don’t stop when we hit the inner parentheses/quote) and there is no TextBlock instance so we crash.

Weirdness happens with the repro because of optimized template sharing. For example if you remove the:

Style="{StaticResource TextBlockStyle}"

The bug goes away because the TextBlock becomes sharable in the Template optimizer.

WorkAround:

The best work around is move the inner template to a resource.

Try move your TreeView.ItemTemplate in resource.

这篇关于WPF中绑定的Markup.IStyle.Connector.Connect错误的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！