Blend - PropertyChanges 没有更新

发布于 2024-09-19 02:52:59 字数 256 浏览 5 评论 0原文

我在 Silverlight 中有一个自定义控件，在我再次构建应用程序之前，通过属性窗口更改属性不会更新。可能是什么问题？

举例说吧。我有一个名为“形状”的控件。如果我选择形状类型为“辛烷值”，它应该在混合设计时表面中显示辛烷值示例。

但是，就我而言，这种情况没有发生，混合设计器不会得到更新，直到我再次构建应用程序。请就此向我提出建议。我不想让消费者因财产价值的每一次变化而建造它，从而给他们带来麻烦。

注意：控件中所有公开的属性都是依赖属性。

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Smile简单爱 2024-09-26 02:53:11

我拥有的是用于应用样式的 CommonStyles 类型的属性。例如，

CommonStyles 将包含 dp，如背景、前景、厚度等，

我犯的错误是，我直接分配了如下值。在基础班。 [ShapeStyle 是 CommonStyle 类型的 dp]

//// Both properties are dp's but, assigned them like normal property. This caused the issue
ShapeBase.Background = this.Shape.ShapeStyle.Background;
ShapeBase.Foreground = this.Shape.ShapeStyle.Foreground; 

ShapeFace.Background = this.Shape.ShapeFaceStyle.Background;
...

当我更改背景属性时，它不会更新我的 ShapeBase.Background 属性。因为，它不受依赖关系的约束。

我通过 dp 绑定解决了这个问题。就像下面这样。

this.ShapeBase.SetBinding(BackgroundProperty, 
              new Binding() { 
              Source = this.Shape.ShapeStyle,
              Path = new PropertyPath("Background") });

What I had was a Properties of type CommonStyles for applying styles. For example,

CommonStyles will contains dp's like Background, Foreground, Thickness, etc.,

The mistake I done was, I directly assigned the values like below. In base class. [ShapeStyle is a dp of type CommonStyle]

//// Both properties are dp's but, assigned them like normal property. This caused the issue
ShapeBase.Background = this.Shape.ShapeStyle.Background;
ShapeBase.Foreground = this.Shape.ShapeStyle.Foreground; 

ShapeFace.Background = this.Shape.ShapeFaceStyle.Background;
...

When, I change the background property it won't update my ShapeBase.Background property. Since, it is not dependency bound.

I resolved it by, dp binding. Like below.

this.ShapeBase.SetBinding(BackgroundProperty, 
              new Binding() { 
              Source = this.Shape.ShapeStyle,
              Path = new PropertyPath("Background") });

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