如何转换字节[]到的BitmapImage [英] How to convert Byte[] to BitmapImage

问题描述

我需要帮助，我有这样的方法来从一个字节一个BitmapImage的[]

I need help, I have this method to get a BitmapImage from a Byte[]

public BitmapSource ByteToBitmapSource(byte[] image)
{
    BitmapImage imageSource = new BitmapImage();

    using (MemoryStream stream = new MemoryStream(image))
    {
        stream.Seek(0, SeekOrigin.Begin);
        imageSource.BeginInit();
        imageSource.StreamSource = stream;
        imageSource.CacheOption = BitmapCacheOption.OnLoad;
        imageSource.EndInit();
    }

    return imageSource;
}

imageSource.EndInit（）; 抛出一个错误。我们没有发现任何成像组件适用于完成此操作

imageSource.EndInit(); throws an error "We found no imaging component suitable to complete this operation."

推荐答案

您可以将您的Image.Source设置在XAML中的字节数组，则无需转换。事情是这样的。

You can set your Image.Source to a byte array in the XAML, no conversion is needed. Something like this.

<Image x:Name="MyImage" Source="{Binding Path=MyByteArrayProperty}" />

如果您的真正的想，你可以这样来做。

If you really want you can do it this way

  public void DecodePhoto(byte[] byteVal)
        {
            if (byteVal == null) return ;


            try
            {
                MemoryStream strmImg = new MemoryStream(byteVal);
                BitmapImage myBitmapImage = new BitmapImage();
                myBitmapImage.BeginInit();
                myBitmapImage.StreamSource = strmImg;
                myBitmapImage.DecodePixelWidth = 200;
                myBitmapImage.EndInit();
                MyImage.Source = myBitmapImage;
            }
            catch (Exception ex)
            {
                string message = ex.Message; 
            }

        }

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