当多个MasterDetailsView在网格中实例化时，Visual Studio Xaml Designer崩溃并出现COMException [英] Visual Studio Xaml Designer Crash with COMException When Multiple MasterDetailsView instantiated within grid

问题描述

在Visual Studio 2017 v15.3.3和Visual Studio 2017 Preview v15.4.0 Preview 1.0中，当我的代码如下所示时，XAML Designer会崩溃：

In both Visual Studio 2017 v15.3.3 and Visual Studio 2017 Preview v15.4.0 Preview 1.0, XAML Designer will crash when I have a code looks like the following:

<Page xmlns:controls="using:Microsoft.Toolkit.Uwp.UI.Controls">
<Grid>
    <controls:MasterDetailsView
         Visibility="Visible">
    </controls:MasterDetailsView>
    <controls:MasterDetailsView
         Visibility="Collapsed">
    </controls:MasterDetailsView>    
</Grid>
</Page>

当您重新打开项目并出现以下错误消息时，XAML设计器将崩溃：

XAML designer will crash when you reopen the project with following error message:

COMException：错误HRESULT E_FAIL已从调用COM组件返回。

StackTrace：在System.Runtime中为
。 InteropServices.WindowsRuntime.IVector`1.InsertAt（UInt32索引，T值）

   at System.Runtime.InteropServices.WindowsRuntime.VectorToListAdapter.InsertAtHelper [T]（IVector`1 _this，UInt32 index，T item）

   at System.Runtime.InteropServices.WindowsRuntime.VectorToListAdapter.Insert [T]（Int32 index，T item）

COMException: Error HRESULT E_FAIL has been returned from a call to a COM component.
StackTrace:
at System.Runtime.InteropServices.WindowsRuntime.IVector`1.InsertAt(UInt32 index, T value)
   at System.Runtime.InteropServices.WindowsRuntime.VectorToListAdapter.InsertAtHelper[T](IVector`1 _this, UInt32 index, T item)
   at System.Runtime.InteropServices.WindowsRuntime.VectorToListAdapter.Insert[T](Int32 index, T item)

推荐答案

你好leavesw，

Hi leavesw,

感谢您的发布。

这是一个UWP应用吗？

It's an UWP app right?

由于报道了类似的问题，一个解决方案是将目标版本切换到
Windows 10（10.0; Build 10586）如果你没有，那么问题就会消失，设计师会正常显示页面。

As similar issue has been reported, one solution is to switch the target version to Windows 10 (10.0; Build 10586) if yours did not , then the problem goes away and the designer shows the page normally.

 

祝你好运，

Fletcher

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