WPF 绑定到局部变量 [英] WPF Binding to local variable

问题描述

你能像这样绑定到局部变量吗?

Can you bind to a local variable like this?

SystemDataBase.cs

namespace WebWalker
{
    public partial class SystemDataBase : Window
    {
        private string text = "testing";
...

SystemDataBase.xaml

 <TextBox 
       Name="stbSQLConnectionString" 
       Text="{SystemDataBase.text}">
 </TextBox>

??

Text 被设置为局部变量text"

Text is set to the local variable "text"

推荐答案

模式是:

public string Text {get;set;}

并且绑定是

{Binding Text, RelativeSource={RelativeSource FindAncestor, AncestorType=Window}}

如果您希望绑定自动更新，您应该将其设为 DependencyProperty.

If you want the binding to update automatically you should make it a DependencyProperty.

我认为 3.5 将 ElementName 添加到绑定中，因此以下内容更容易一些:

I think 3.5 added ElementName to bindings, so the following is a little easier:

<Window x:Name="Derp" ...
  <TextBlock Text="{Binding Text, ElementName=Derp}"/>

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