如何访问附加到 UI 元素的行为？

发布于 2024-11-19 01:31:42 字数 354 浏览 1 评论 0原文

例如，我有这样的：

Border myBorder = new Border();
...
designArea.Children.Add(myBorder);

ResizeAndMoveBehavior b = new ResizeAndMoveBehavior();
b.CurrentProperties = thisButtonProperties;
b.Attach(myBorder);

现在，当我从 designArea 的子级获取 myBorder 时，如何访问附加到 myBorder 的行为的 CurrentProperties？

原文

For example, I have this:

Border myBorder = new Border();
...
designArea.Children.Add(myBorder);

ResizeAndMoveBehavior b = new ResizeAndMoveBehavior();
b.CurrentProperties = thisButtonProperties;
b.Attach(myBorder);

Now when I get myBorder from the designArea's children how can I access the CurrentProperties of the behavior attached to myBorder?

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爺獨霸怡葒院 2024-11-26 01:31:42

您以非标准方式附加您的行为，这意味着以后无法取回附加的行为。但是，如果您按照标准方式执行此操作，则可以获得此信息。以下是如何管理行为的示例。

using System.Windows.Interactivity;

// Add a behavior.
Interaction.GetBehaviors(myBorder).Add(b);

// Get all behaviors of an object.
BehaviorCollection behaviors = Interaction.GetBehaviors(myBorder);

// Get a specific type of behavior.
ResizeAndMoveBehavior myBehavior = (ResizeAndMoveBehavior)behaviors
    .Where(b => b is ResizeAndMoveBehavior).Single();

You are attaching your behavior in a non-standard way, which means that there is no way to get the attached behavior(s) back later. However, if you do it the standard way, you can get this info. Here is an example of how behaviors should be managed.

using System.Windows.Interactivity;

// Add a behavior.
Interaction.GetBehaviors(myBorder).Add(b);

// Get all behaviors of an object.
BehaviorCollection behaviors = Interaction.GetBehaviors(myBorder);

// Get a specific type of behavior.
ResizeAndMoveBehavior myBehavior = (ResizeAndMoveBehavior)behaviors
    .Where(b => b is ResizeAndMoveBehavior).Single();

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