相关疑难解决方法(0)

这似乎是整个网络上一个臭名昭着的错误.因为我的情景不适合,所以我无法找到问题的答案.将图像保存到流时会抛出异常.

奇怪的是这与png完美配合,但是jpg和gif给出了上述错误,这是相当混乱的.

最相似的问题涉及将图像保存到没有权限的文件.具有讽刺意味的是,解决方案是使用内存流,因为我正在做....

public static byte[] ConvertImageToByteArray(Image imageToConvert)
{
    using (var ms = new MemoryStream())
    {
        ImageFormat format;
        switch (imageToConvert.MimeType())
        {
            case "image/png":
                format = ImageFormat.Png;
                break;
            case "image/gif":
                format = ImageFormat.Gif;
                break;
            default:
                format = ImageFormat.Jpeg;
                break;
        }

        imageToConvert.Save(ms, format);
        return ms.ToArray();
    }
}

更多细节到例外.造成这么多问题的原因是缺乏解释:(

System.Runtime.InteropServices.ExternalException was unhandled by user code
Message="A generic error occurred in GDI+."
Source="System.Drawing"
ErrorCode=-2147467259
StackTrace:
   at System.Drawing.Image.Save(Stream stream, ImageCodecInfo encoder, EncoderParameters    encoderParams)
   at System.Drawing.Image.Save(Stream stream, ImageFormat format)
   at Caldoo.Infrastructure.PhotoEditor.ConvertImageToByteArray(Image imageToConvert) in C:\Users\Ian\SVN\Caldoo\Caldoo.Coordinator\PhotoEditor.cs:line 139
   at …