有没有办法指定自定义依赖属性的默认绑定模式和更新触发器？ [英] Is there a way to specify a custom dependency property's default binding mode and update trigger?

问题描述

我想让这样做，默认情况下，当我绑定到我的一个依赖属性时，绑定模式是双向的，update-trigger属性被更改。有没有办法这样做？

这是一个依赖属性之一的例子：

  public static readonly DependencyProperty BindableSelectionLengthProperty = 
 DependencyProperty.Register（
BindableSelectionLength，
 typeof（int），
 typeof（ModdedTextBox），
 new PropertyMetadata（OnBindableSelectionLengthChanged））; 
  

解决方案

注册属性时，使用以下命令初始化元数据： / p>

 新的FrameworkPropertyMetadata 
 {
 BindsTwoWayByDefault = true，
 DefaultUpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged 
} 
  

I would like to make it so that, as default, when I bind to one of my dependency properties the binding mode is two-way and update-trigger is property changed. Is there a way to do this?

Here is an example of one of my dependency properties:

public static readonly DependencyProperty BindableSelectionLengthProperty =
        DependencyProperty.Register(
        "BindableSelectionLength",
        typeof(int),
        typeof(ModdedTextBox),
        new PropertyMetadata(OnBindableSelectionLengthChanged));

解决方案

When registering the property, initialize your metadata with:

new FrameworkPropertyMetadata
{
    BindsTwoWayByDefault = true,
    DefaultUpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged
}

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