为什么有些TemplateBinding值不在设计师显示，但其他人？ [与摄制代码] [英] Why are some TemplateBinding values not shown in designer but others are? [with repro code]

问题描述

我有一个奇怪的情况：
以下示例代码替换窗口的内容，使用二传手的背景颜色，并提供了两个标签堆栈面板。其中一个背景和一个标题

的事情是，他们在设计时
<标签内容= {TemplateBinding背景}/> 不完美但是$ b $显示背景值b <标签内容={TemplateBinding标题}/> 这是否在运行应用程序时才会出现。
有什么区别吗？

我与周围的TargetType出场（将其设置为主窗口，没有效果）

这是全样本：

 <窗​​口x：类=TBinding.MainWindow的xmlns =htt​​p://schemas.microsoft.com/winfx/2006/xaml/presentation的xmlns：X =htt​​p://schemas.microsoft.com/winfx/2006/xamlHEIGHT =350WIDTH = 525> 
< Window.Style> 
<风格的TargetType =窗口> 
< setter属性=背景VALUE =草绿/> 
< setter属性=标题VALUE =此窗口的标题为/> 
< setter属性=模板> 
< Setter.Value> 
<的ControlTemplate的TargetType =窗口> 
< StackPanel的保证金=50背景={TemplateBinding背景}> 
<标签内容={TemplateBinding背景}/> 
<标签内容={TemplateBinding标题}/> 
< / StackPanel的> 
< /控件模板> 
< /Setter.Value> 
< /二传手> 
< /样式和GT; 
< /Window.Style> 
< /窗GT; 
  

解决方案

上找到连接：的 https://connect.microsoft.com/VisualStudio/feedback/details/770067/wpf-设计师 - 不笑

设计师创建窗口类的代理，而不是窗口本身。替代并不能完全反映所有的属性，因此具有有限的功能。

会出现此问题VS2012以及在VS2013。

I've got an odd situation: Following sample code replaces the Content of the window, uses the setter's background color and provides a stack panel with two labels. One for the background and one for the title.

The thing is, that they during design time <Label Content="{TemplateBinding Background}" /> does perfectly show the background value however <Label Content="{TemplateBinding Title}" /> does that only when running the app. What is the difference here?

I've played around with the TargetType (by setting it to MainWindow, no effect)

This is the full sample:

<Window x:Class="TBinding.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Height="350" Width="525">
    <Window.Style>
        <Style TargetType="Window">
            <Setter Property="Background" Value="LawnGreen" />
            <Setter Property="Title" Value="The title of this window" />
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="Window">
                        <StackPanel Margin="50" Background="{TemplateBinding Background}">
                                <Label Content="{TemplateBinding Background}" />
                                <Label Content="{TemplateBinding Title}" />
                        </StackPanel>
                        </ControlTemplate>
                    </Setter.Value>
                </Setter>
            </Style>
        </Window.Style>
</Window>

解决方案

Found on connect: https://connect.microsoft.com/VisualStudio/feedback/details/770067/wpf-designer-not-sho

Designer creates a proxy for Window classes and not the Window itself. The substitute does not fully reflect all properties therefore has limited functionality.

This issues occurs in VS2012 as well in VS2013.

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