在 XAML 中访问代码隐藏变量 [英] Access codebehind variable in XAML

问题描述

如何访问 Sample.xaml.cs 文件中的公共变量，例如 asp.net <%=VariableName%>?

How can I access the public variable which in Sample.xaml.cs file like asp.net <%=VariableName%>?

推荐答案

有几种方法可以做到这一点.

There are a few ways to do this.

• 将您的变量添加为代码隐藏的资源:

• Add your variable as a resource from codebehind:

myWindow.Resources.Add("myResourceKey", myVariable);

然后您可以从 XAML 访问它:

Then you can access it from XAML:

<TextBlock Text="{StaticResource myResourceKey}"/>

如果您必须在解析 XAML 后添加它，您可以使用上面的 DynamicResource 而不是 StaticResource.

If you have to add it after the XAML gets parsed, you can use a DynamicResource above instead of StaticResource.

使变量成为 XAML 中某些内容的属性.通常这通过 DataContext 起作用:

Make the variable a property of something in your XAML. Usually this works through the DataContext:

myWindow.DataContext = myVariable;

或

myWindow.MyProperty = myVariable;

此后，您的 XAML 中的任何内容都可以通过 Binding 访问它:

After this, anything in your XAML can access it through a Binding:

<TextBlock Text="{Binding Path=PropertyOfMyVariable}"/>

或

<TextBlock Text="{Binding ElementName=myWindow, Path=MyProperty}"/>

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