您如何更改< path>填写C# [英] How do you change <path> fill in c#

问题描述

你好，程序员.

我有一个问题，可以更改imageBrush ImageSource吗? 如果可以的话，它是如何做到的，我尝试了很多选择，但似乎都没有用.

I have a question, that can I change imageBrush ImageSource? If I can, then how does it do that, I have tried many options and none of them seems not to work.

<Path x:Name="PathImage">
    <Path.Fill>
        <ImageBrush ImageSource="pic1.png"/>
    </Path.Fill> 
</Path>

推荐答案

您可以通过投射Path的Fill属性来访问ImageBrush:

You can access the ImageBrush by casting the Path's Fill property:

var imageBrush = PathImage.Fill as ImageBrush;
imageBrush.ImageSource = new BitmapImage(new Uri());

---

更简单的是直接在ImageBrush上设置x:Name属性:

---

Even simpler would be to set the x:Name property directly on the ImageBrush:

<Path x:Name="PathImage">
    <Path.Fill>
        <ImageBrush x:Name="imageBrush" ImageSource="pic1.png"/>
    </Path.Fill> 
</Path>

现在，XAML解析器将创建一个公共字段，您可以在后面的代码中对其进行访问:

Now the XAML parser creates a public field that you can access in code behind:

imageBrush.ImageSource = new BitmapImage(new Uri());

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