如何将 TargetNullValue 设置为 Visibility.Collapsed in Binding [英] How to Set TargetNullValue to Visibility.Collapsed in Binding

问题描述

我正在将 TextBlock.Visiblitiy 绑定到某个东西，我想将 Binding.TargetNullValue 设置为 Collapsed，我该怎么做它在 XAML 中?

I'm binding TextBlock.Visiblitiy to something, and I want to set the Binding.TargetNullValue to Collapsed, how can I do it in XAML?

这个 如何将 TargetNullValue 设置为日期? 在 Silverlight 中不起作用.(没有 x:Static).

This one How do I set TargetNullValue to a date? does not work in Silverlight. (No x:Static).

推荐答案

这在 SL4 中对我有用:

This is working for me in SL4:

<TextBlock Text="Text" Visibility="{Binding Foo, TargetNullValue=Collapsed}"/>

Foo:

public Visibility? Foo { get; set; }

这篇关于如何将 TargetNullValue 设置为 Visibility.Collapsed in Binding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！