c# - 升级到 Visual Studio 2015 会出现假错误

Question

我已将项目从 VS 2012 升级到 VS 2015，但出现奇怪的错误。在某些窗口上，它会提示颜色和画笔定义，即使我完全没有对任何颜色或画笔做任何事情。该项目将编译但编辑器给出错误。例如，在 XAML 代码中:

    <ComboBox x:Name="cbCountry" Grid.Column="1"   VerticalAlignment="Bottom"  Height="28" FontSize="12" SelectionChanged="cbCountry_SelectionChanged" 
              HorizontalContentAlignment="Stretch" IsEditable="True" StaysOpenOnEdit="True" IsManipulationEnabled="True" KeyUp="cbCountry_KeyUp" />

提示颜色。嗯？什么颜色？这是一个非常普通的页面，没有任何花哨的事情发生，有人知道如何消除这些错误吗？

更新我将一些 Windows 资源定义为:

<Window.Resources>
    <DataTemplate x:Key="CityTemplate">
        <StackPanel Orientation="Horizontal">
            <Border BorderThickness="1" BorderBrush="Black">
                <TextBlock Text="{Binding City}" />
            </Border>
        </StackPanel>
    </DataTemplate>
</Window.Resources>

它确实定义了 BorderBrush，但没有为组合定义。我尝试从 BorderBrush 开始一次取出一 block 。直到我完全删除了 <Windows.Resources>错误消失的部分。有没有人在 Windows 资源中看到任何导致此问题的错误？

更新 2
该问题似乎与背后的任何代码无关。整个 XAML 如下:

<Window
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
        xmlns:ig="http://schemas.infragistics.com/xaml" 
        x:Class="PTHWPF.View.Lookup" 
        Title="Lookup Place of Birth" Height="400" Width="600" Loaded="Window_Loaded" 
        Icon="/PTHWPF;component/Resources/Images/LookupMap.png">
    <!--TextBlock.TextAlignment="Center" -->
<Window.Resources>
        <DataTemplate x:Key="CityTemplate">
            <StackPanel Orientation="Horizontal">
                <Border BorderThickness="1" BorderBrush="Black">
                    <TextBlock Text="{Binding City}" />
                </Border>
            </StackPanel>
        </DataTemplate>
    </Window.Resources>
    <Grid IsManipulationEnabled="True" >
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="110" />
            <ColumnDefinition Width="280*" />
            <ColumnDefinition Width="180*" />
        </Grid.ColumnDefinitions>
        <Grid.RowDefinitions>
            <RowDefinition Height="60" />
            <RowDefinition Height="50" />
            <RowDefinition Height="50" />
            <RowDefinition Height="*" />
        </Grid.RowDefinitions>
        <Label Content="Country or State" Height="28" HorizontalAlignment="Right"  x:Name="lbCountry" VerticalAlignment="Bottom" />
        <ComboBox x:Name="cbCountry" Grid.Column="1"   VerticalAlignment="Bottom"  Height="28" FontSize="12" SelectionChanged="cbCountry_SelectionChanged" 
                  HorizontalContentAlignment="Stretch" IsEditable="True" StaysOpenOnEdit="True" IsManipulationEnabled="True" KeyUp="cbCountry_KeyUp"  >
        </ComboBox>
        <Label Content="City" Grid.Row="1" Height="28" HorizontalAlignment="Right"  x:Name="lbCity" VerticalAlignment="Bottom" />
        <ig:XamMultiColumnComboEditor SelectionChanged="cbCity_SelectionChanged"
            Grid.Column="1" Grid.Row="1" 
            HorizontalAlignment="Stretch" 
            x:Name="cbCity" Height="28" 
            VerticalAlignment="Bottom" 
            DataContext="{Binding}" 
            DisplayMemberPath="City" 
            HorizontalContentAlignment="Left" 
            IsTabStop="True" MinWidth="250" 
            FilterMode="FilterOnPrimaryColumnOnly"/>
        <DockPanel Grid.Column="1" Grid.Row="2" HorizontalAlignment="Center" >
            <Button Background="#9F7F90FC" Height="30" x:Name="btnOk" Width="80" Style="{DynamicResource RoundedButton}" HorizontalAlignment="Left" IsDefault="True" Click="btnOk_Click" VerticalAlignment="Bottom" Margin="0,0,20,0">
                <StackPanel Orientation="Horizontal">
                    <Image Height="20" Source="/PTHWPF;component/Resources/ok.png" Width="20" />
                    <AccessText Margin="5,3,0,0" x:Name="btnOkText" Text="_Ok"/>
                </StackPanel>
            </Button>
            <Button Background="#9F7F90FC" BorderBrush="#95FFFFFF" Height="30" x:Name="btnCancel" Style="{DynamicResource RoundedButton}" Width="80" IsCancel="True"  Click="btnCancel_Click" VerticalAlignment="Bottom" HorizontalAlignment="Right" Margin="20,0,0,0">
                <StackPanel Background="{x:Null}" Orientation="Horizontal">
                    <Image Height="20" Source="/PTHWPF;component/Resources/Images/cancel.png" Width="20" />
                    <AccessText Margin="5,3,0,0" x:Name="btnCancelText" Text="_Cancel"/>
                </StackPanel>
            </Button>
        </DockPanel>
    </Grid>
</Window>

Answer 1

显然 Visual Studio 2015 Enterprise Edition 存在一些问题，其中还包括“Handler=...”错误，如下所示: https://connect.microsoft.com/VisualStudio/feedback/details/1611888/xaml-editor-error-invalid-value-for-property-handler-and-ischecked-bug-remains-in-the-enterprise-version-of-vs-2015

我在其他 XAML 文件上也遇到过它，但它并没有导致设计器失败。

解决方案:
在此处升级到 Service Pack 1:
https://www.visualstudio.com/en-us/news/vs2015-update1-vs.aspx

这是一个网络更新，花了一个多小时才完成。我还需要重新启动 Windows 才能完成，所以请记住这一点。希望找到这篇文章的人不会像我一样花几天时间来解决问题。