wpf 如何以编程方式更改边框背景图像
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How to change Border Background image programmatically
提问by shnaz
I am creating a media player app in WPF c#. I am using Media Element to do this.
我正在 WPF c# 中创建一个媒体播放器应用程序。我正在使用媒体元素来做到这一点。
Anyways, I have used <Border> </Border>to add border some places.
无论如何，我已经习惯<Border> </Border>在某些地方添加边框。
<Border Name="hej1">
<Border.Background>
<ImageBrush ImageSource="Images\music.png" Stretch="None"/>
</Border.Background>
<MediaElement ..../>
</Border>
I want to change the ImageSource to some other picture programmatically, how to do that?
我想以编程方式将 ImageSource 更改为其他图片，该怎么做？
I have tried but no success.
我试过但没有成功。
So for every song the image in <ImageBrush ImageSource="Images\music.png"is changed.
因此，对于每首歌曲，其中的图像<ImageBrush ImageSource="Images\music.png"都会发生变化。
Thanks in advance
提前致谢
Shafi
沙菲
回答by Clemens
Assign a Name to the ImageBrush:
为 ImageBrush 指定一个名称：
<ImageBrush x:Name="imageBrush" ImageSource="Images\music.png" Stretch="None"/>
Then use the named member in code:
然后在代码中使用命名成员：
var filename = @"Images\title.png";
imageBrush.ImageSource = new BitmapImage(new Uri(filename, UriKind.Relative));
Or simply cast the value of the Border's Backgroundproperty to type ImageBrush:
或者简单地将 BorderBackground属性的值转换为ImageBrush 类型：
var imageBrush = (ImageBrush)hej1.Background;
var filename = @"Images\title.png";
imageBrush.ImageSource = new BitmapImage(new Uri(filename, UriKind.Relative));
回答by Prashant vishwakarma
BitmapImage img = new BitmapImage(new Uri(@"Images\myimage.png"));
ImageBrush image = new ImageBrush();
image.ImageSource = img;
Border.Background =image;
