如何获得存储在资源图像的乌里 [英] How to get a Uri of the image stored in the resources

问题描述

我有两个巴纽文件添加到我的资源，我需要访问他们的开放的我们做结合的时候。

I have two .png files added to my resources which I need to access their Uri when doing binding.

我的 XAML code是如下：

My xaml code is as followed:

<Grid>
  <Image>
    <Image.Source>
       <BitmapImage DecodePixelWidth="10" UriSource="{Binding Path=ImagePath}"/>
    </Image.Source>
  </Image> 
</Grid>

和结合 code。使用 的ImagePath 的是：

and the binding code using ImagePath is:

ImagePath = resultInBinary.StartsWith("1") ? Properties.Resources.LedGreen : Properties.Resources.ledRed;

然而

Properties.Resources.LedGreen

返回位图而不是字符串包含特定图像的URI的。
我只是想知道如何提取该值，而不需要解决，它的存储目录图像的路径。 （这老实说我不知道​​是做，因为我无法在网络上找到任何类似的情况正确的事）。

returns a Bitmap instead of String containing the Uri of that particular image. I just want to know how to extract that value without a need to address a path of the image in the directory that it's stored. (Which honestly I am not sure is a right thing to do as I couldn't find any similar situation on the net).

请让我知道如果甚至有一个preferred方法来一个我想如果可以使用。

Please let me know if there is even a preferred method to the one I am trying to use if available.

推荐答案

在你通常不存储图像属性/ Resources.resx 和访问它们的WPF应用程序手段 Properties.Resources 类。

In a WPF application you would usually not store images in Properties/Resources.resx and access them by means of the Properties.Resources class.

相反，你只需将图像文件添加到您的Visual Studio项目为常规文件，或许是一个名为图像或类似的文件夹中。然后你会设置它们的生成操作到资源，它在属性窗口中完成的。你到达那里例如通过右键单击图像文件，然后选择属性菜单项。需要注意的是默认值生成操作应资源的反正图像文件。

Instead you just add the image files to your Visual Studio project as regular files, perhaps in a folder named "Images" or the like. Then you would set their Build Action to Resource, which is done in the Properties window. You get there e.g. by right-clicking the image file and select the Properties menu item. Note that the default value of the Build Action should be Resource for image files anyways.

为了从$ C $访问这些图片资源c您会再使用包URI 。有了上面的文件夹名称为图像，并命名为LedGreen.png图像文件，创建这样的URI是这样的：

In order to access these image resources from code you would then use a Pack URI. With the above folder name "Images" and an image file named "LedGreen.png", creating such an URI would look like this:

var uri = new Uri("pack://application:,,,/Images/LedGreen.png");

所以，你也许可以宣布你的财产是开放的类型的：

So you could perhaps declare your property to be of type Uri:

public Uri ImageUri { get; set; } // omitted INotifyPropertyChanged implementation

和设置是这样的：

ImageUri = resultInBinary.StartsWith("1")
         ? new Uri("pack://application:,,,/Images/LedGreen.png")
         : new Uri("pack://application:,,,/Images/LedRed.png");

最后你的XAML应该像下图所示，它依赖于内置的类型转换，从URI来ImageSource的：

Finally your XAML should look like shown below, which relies on built-in type conversion from Uri to ImageSource:

<Grid>
    <Image Width="10" Source="{Binding Path=ImageUri}" />
</Grid>

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