我的MVC视图将文件内容显示到视图中，而不是作为文件下载

Question

我找到了这个链接。ASP.NET MVC download image rather than display in browser

我尝试了所有方法，我的action方法将文件转储到视图中，而不是下载。我希望能够单独下载该文件。谢谢

        if (extension.ToLower() == ".docx")
        { // Handle *.jpg and   
            contentType = "application/docx";
        }
        else if (extension.ToLower() == ".jpg")
        {// Handle *.gif   
            contentType = "image/jpeg jpeg jpg jpe";
        }
        else if (extension.ToLower() == ".pdf")
        {// Handle *.pdf   
            contentType = "application/pdf";
        }
        Response.ContentType = contentType; // "application/force-download";
        Response.AddHeader("Content-Disposition", "attachment; filename=" + FileName);
        Response.WriteFile(FilePath );
        Response.Flush();
        Response.End();[![View after clicking download button][1]][1]

Answer 1

您的问题可能与以下问题类似：

How can I present a file for download from an MVC controller?

Returning a file to View/Download in ASP.NET MVC

您可以使用以下代码从操作方法返回FileResult或FileStreamResult，而不是使用Response.WriteFile：

    if (extension.ToLower() == ".docx")
    { // Handle *.jpg and   
        contentType = "application/docx";
    }
    else if (extension.ToLower() == ".jpg")
    {// Handle *.gif   
        contentType = "image/jpeg jpeg jpg jpe";
    }
    else if (extension.ToLower() == ".pdf")
    {// Handle *.pdf   
        contentType = "application/pdf";
    }
    Response.ContentType = contentType; // "application/force-download";
    Response.AddHeader("Content-Disposition", "attachment; filename=" + FileName);

    // returning the file for download as FileResult
    // third input parameter is optional
    return File(FileName, contentType, Server.UrlEncode(Filename));

您可能希望这样尝试：

Response.Headers.Add("Content-Disposition", "attachment; filename=" + FileName);

其他参考资料：

Response.WriteFile() -- not working asp net mvc 4.5