ASP.NET MVC下载图像而不是在浏览器中显示

我相信您可以通过content-disposition头来控制这一点。

Response.AddHeader(
       "Content-Disposition", "attachment; filename=\"filenamehere.png\""); 

您需要在响应上设置以下标头:

• Content-Disposition: attachment; filename="myfile.png"
• Content-Type: application/force-download

其实我来这里是因为我在寻找相反的效果。

    public ActionResult ViewFile()
    {
        string contentType = "Image/jpeg";



        byte[] data = this.FileServer("FileLocation");

        if (data == null)
        {
            return this.Content("No picture for this program.");
        }

        return File(data, contentType, img + ".jpg");
    }

FileResult 并返回一个 FilePathResult

public FileResult ImageDownload(int id)
    {
        var image = context.Images.Find(id);
        var imgPath = Server.MapPath(image.FilePath);
        return File(imgPath, "image/jpeg", image.FileName);
    }

FileResult 班级。

 public FileResult DownloadFile(string id)
{
try
{
    byte[] imageBytes =  ANY IMAGE SOURCE (PNG)
    MemoryStream ms = new MemoryStream(imageBytes);
    var image = System.Drawing.Image.FromStream(ms);
    image.Save(ms, System.Drawing.Imaging.ImageFormat.Png);
    var fileName = string.Format("{0}.png", "ANY GENERIC FILE NAME");
    return File(ms.ToArray(), "image/png", fileName);
}
catch (Exception)
{
}
return null;
}

这个我其实@7072k3

var result = File(path, mimeType, fileName);
Response.ContentType = mimeType;
Response.AddHeader("Content-Disposition", "inline");
return result;

从我的工作代码中复制的。 这仍然使用标准的ActionResult返回类型。