WPF数据绑定问题 [英] WPF DataBinding Issue

问题描述

在我的窗口中，我试图将控件绑定到表单中的属性.我似乎无法使其按预期工作.在后面的代码中，我有以下定义:

In my window, I''m trying to bind a control to a property in the form. I can''t seem to get it to work as intended. In the code-behind I have this defined:

public AViewModel ViewModel { get; set; }

并且在XAML中我有这个(我跳过了不必要的xaml标记，以简化问题):

and in the XAML I have this (I skipped the unneccesary xaml tags and such to simplify the question):

TextBlock Text="{Binding Path=ViewModel.SomeProperty}"

但是它的确在窗口中显示了边界值.

我还尝试在xaml中定义一个本地"名称空间，并将"local:"放在绑定语句的前面.

我到底在做什么错?

but it does display the bound value in the window.

I also tried defining a "local" namespace in the xaml and putting "local:" in front of the binding statement.

What the hell am I doing wrong?

推荐答案

您必须使用属性ViewModel设置窗口DataContext，然后它将起作用.

You must set window DataContext with property ViewModel, then it will be working.

public AViewModel ViewModel
{
 get{ return m_viewModel; }
 set
 {
   m_viewModel = value;
   DataContext = m_viewModel;
 }
}

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