从C#打开Office2010文档时出错

Question

我正在尝试通过以下方式为用户加载office文档

HttpContext.Current.Response.AddHeader("Content-Disposition", "attachment; filename=" + file.Name); 
HttpContext.Current.Response.ContentType = MIMETypesDictionary[fileExt];
HttpContext.Current.Response.BinaryWrite(fileArray);

我的MIMETypesDictionary有这个(缩写)

    private static readonly Dictionary<string, string> MIMETypesDictionary = new Dictionary<string, string>
      {
        {"doc", "application/msword"},
        {"docx", "application/vnd.openxmlformats-officedocument.wordprocessingml.document"},
        ...
        {"xls", "application/vnd.ms-excel"},  
        {"xlsx", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"}
        ...
      };

doc和xls文件工作得很好。客户端应用程序中的Docx和xlsx文件错误。

Excel错误

Excel found unreadable content in 'filename.xlsx'. Do you want to recover the contents of this workfbook?

单词错误

The file filename.docx cannot be opened because there are problems with the contents.

如果我单击Yes，它将加载，并且文档看起来没有问题。当然，这个错误对用户来说是不可能的。我是否对这些文件使用了正确的mime类型？我还尝试了application/vnd.ms-word.document.12、application/vnd.ms-excel.12和application/octet-stream，得到了相同的错误。

谢谢!

Answer 1

解决了！必须构建响应代码

HttpContext.Current.Response.Clear();
HttpContext.Current.Response.AddHeader("Content-Disposition", "attachment; filename=" + file.Name); 
HttpContext.Current.Response.ContentType = MIMETypesDictionary[fileExt];
HttpContext.Current.Response.BinaryWrite(fileArray);
HttpContext.Current.Response.End();
HttpContext.Current.Response.Flush();

我保留了文件类型的八位位流的值，它工作得很好！