从给定路径加载图标在WPF窗口中显示 [英] Loading Icons from a given path to display in WPF window

问题描述

我有一个显示目录和显示文件的另一个面板的树。现在显示的文件都没有图标。我所知道的是文件路径。我woudl喜欢做的就是将文件图标，在该面板中显示。我需要的输出是和Image.source。目前，这是我所

I have a tree that displays the directory and another panel that displays the files. Right now the files displayed have no icons. All i know is the path to the file. What i woudl like to do is get that files icon to display in that panel. I need the output to be and Image.source. Currently this is what i have

    private ImageSource GetIcon(string filename)
    {
        System.Drawing.Icon extractedIcon = System.Drawing.Icon.ExtractAssociatedIcon(filename);
        ImageSource imgs;

        using (System.Drawing.Icon i = System.Drawing.Icon.FromHandle(extractedIcon.ToBitmap().GetHicon()))
            {
                imgs = Imaging.CreateBitmapSourceFromHIcon(
                                        i.Handle,
                                        new Int32Rect(0, 0, 16, 16),
                                        BitmapSizeOptions.FromEmptyOptions());
            }

        return imgs;

从那里，我把我的纺织机械展览会，并尝试改变其默认的图标，：

From there i call my itme and try to change its default icon with:

ImageSource i = GetIcon(f.fullname)
ic.image = i

IC 是给定项目清单，f.fullname包含路径$ b $这里b是获取和设置图像

ic is the given item to the list, f.fullname contains the path here is the get and set of image

        public BitmapImage Image
        {
            get { return (BitmapImage)img.Source; }
            set { img.Source = value; }
        }

它不工作，这是很多方面我已经1试了一下说，它不能施放不同的类型。有没有人有办法做到这一点？结果
我完全失去了。

It doesn't work and this is one of many ways I've tried it says it cant cast the different types. Does anyone have a way to do this?
I'm completely lost.

推荐答案

我假设 IMG 是一个标准的图片控制。

I'm assuming that img is a standard Image control.

你的图片属性的类型为的BitmapImage ，这是一种特定的的ImageSource 。 CreateBitmapSourceFromHIcon 返回 InteropBitmap 称为内部类，它不能被转换为 BitmapImage的<实例/ code>，从而导致错误。

Your Image property is of type BitmapImage, which is a specific kind of ImageSource. CreateBitmapSourceFromHIcon returns an instance of an internal class called InteropBitmap, which cannot be converted to BitmapImage, resulting in an error.

您需要属性更改你的ImageSource （或的BitmapSource ，其中 CreateBitmapSourceFromHIcon 的回报，并继承了的ImageSource ），像这样的：

You need to change you property to ImageSource (or BitmapSource, which CreateBitmapSourceFromHIcon returns, and inherits ImageSource), like this:

public ImageSource Image
{
    get { return img.Source; }
    set { img.Source = value; }
}

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