您在使用 Windows 窗体吗?并且您必须将字节数组转换为图像才能在图片框中显示.

Are you using Windows Forms? And you must Convert Byte array to Image for displaying it in Picture Box.

public Image byteArrayToImage(byte[] byteArrayIn)
{
    MemoryStream ms = new MemoryStream(byteArrayIn);
    Image returnImage = Image.FromStream(ms);
    return returnImage;
}

你是如何将图像转换为字节数组的.我希望这个问题不存在.您可以使用:

And how did you convert Image to byte array. I hope that problem not there. You can use:

  private byte[] ImageToByteArray(string ImageFile)
    {
        FileStream stream = new FileStream(
              ImageFile, FileMode.Open, FileAccess.Read);
        BinaryReader reader = new BinaryReader(stream);

        // Convert image to byte array.
        byte[] photo = reader.ReadBytes((int)stream.Length);

        return photo;
    }