为什么找不到WPF属性IsDefaulted? [英] Why is the WPF property IsDefaulted not found?

问题描述

我正在使用以下示例处理按钮模板: http://msdn.microsoft.com/en-us/library/ms753328.aspx

I was working on my button template with this example: http://msdn.microsoft.com/en-us/library/ms753328.aspx

我发现"IsDefaulted"属性非常有用，但无法使用.我有以下触发器设置:

I found the "IsDefaulted" property quite useful, but can't use it. I have the following trigger setup:

<ControlTemplate.Triggers>                      
    <Trigger Property="IsMouseOver" Value="true">
        <Setter TargetName="Presenter" Property="BitmapEffect">
            <Setter.Value>
                <OuterGlowBitmapEffect GlowColor="White" Opacity="0.2" />
            </Setter.Value>
        </Setter>
    </Trigger>

    <Trigger Property="IsDefaulted" Value="true">
        <Setter TargetName="Canvas" Property="Height" Value="40" />
        <Setter Property="FontSize" Value="18" />
    </Trigger>
</ControlTemplate.Triggers>

但是，在构建时，我得到:

However, on build, I get:

在类型'System.Windows.Controls.Control'上找不到模板属性'IsDefaulted'.

Cannot find the Template Property 'IsDefaulted' on the type 'System.Windows.Controls.Control'.

这很奇怪，因为Google没有告诉我任何有关此的信息，MSDN也没有告诉我任何其他信息.经过一些测试，我发现:

Which is strange, because Google doesn't tell me anything about this, nor does MSDN or anything else. After some testing, I figured that:

-IsMouseOver:有效

-IsMouseOver: Works

-IsPressed:不起作用

-IsPressed: Doesn't work

-IsDefaulted:不起作用

-IsDefaulted: Doesn't work

-IsKeyboardFocused:有效

-IsKeyboardFocused: Works

-IsEnabled:有效

-IsEnabled: Works

臭虫?我做错了什么?

推荐答案

已解决:

<ControlTemplate TargetType="Button">

就这么简单:)

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