Silverlight 4.0:如何将 byte[] 转换为图像? [英] Silverlight 4.0: How to convert byte[] to image?

问题描述

public Image Base64ToImage(string base64String)
    {
        // Convert Base64 String to byte[]
        byte[] imageBytes = Convert.FromBase64String(base64String);
        MemoryStream ms = new MemoryStream(imageBytes, 0,
          imageBytes.Length);

        // Convert byte[] to Image
        ms.Write(imageBytes, 0, imageBytes.Length);
        System.Drawing.Image image = System.Drawing.Image.FromStream(ms, true);
        return image;
    }

我想将 byte[] 转换为图像，但是 Silverlight 不支持 System.Drawing.Image.有什么选择吗?

I want to convert byte[] to image, however System.Drawing.Image is not supported in Silverlight. Any alternative?

推荐答案

您需要创建一个 ImageSource 并将其分配给 Image 控件或使用 ImageBrush 设置在背景上.BitmapImage 位于 System.Windows.Media.Imaging 命名空间中.

You need to create an ImageSource and assign that to an Image control or use an ImageBrush to set on the background. BitmapImage is located in the System.Windows.Media.Imaging namespace.

        byte[] imageBytes = Convert.FromBase64String(base64String);
        using (MemoryStream ms = new MemoryStream(imageBytes, 0,
          imageBytes.Length))
        {
            BitmapImage im = new BitmapImage();
            im.SetSource(ms);
            this.imageControl.Source = im;
        }

或用于 ImageBrush

or for the ImageBrush

        byte[] imageBytes = Convert.FromBase64String(base64String);
        using (MemoryStream ms = new MemoryStream(imageBytes, 0,
          imageBytes.Length))
        {
            BitmapImage im = new BitmapImage();
            im.SetSource(ms);
            imageBrush.ImageSource = im;
            this.BoxBorder.Background = imageBrush;
        }

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