将System.Windows.Controls.Image转换为System.Drawing.Image如何

问题描述

我尝试pictureBox1.Image = img;但是它很有效

I try "pictureBox1.Image = img;" but it dosent work

Cannot implicitly convert type 'System.Windows.Controls.Image' to 'System.Drawing.Image'

这个（图片img =新图片）= System.Windows.Controls.Image

This (Image img = new Image) = System.Windows.Controls.Image

private void button4_Click(object sender, EventArgs e){
     GimageSearchClient client = new GimageSearchClient("http://www.google.com");
            IList<IImageResult> results;
            IAsyncResult result = client.BeginSearch(
                textBox1.Text.Trim(),  //param1
                10, //param2
                ((arResult) => //param3
                {
                    results = client.EndSearch(arResult);
                    Dispatcher.CurrentDispatcher.BeginInvoke(DispatcherPriority.Send,
                        (Action<IList<IImageResult>>)(async (data) =>
                         {
                             Random r = new Random();
                             Image img = new Image
                             {
                                 Source = await DownloadImage(results[r.Next(results.Count)].TbImage.Url),
                                 Stretch = Stretch.UniformToFill,
                                 StretchDirection = StretchDirection.DownOnly,
                             };

                             //////// img add to Picturebox HOW ?

                         }), null);
                }),
                null //param4 
                );
        }

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