C# · 12月 25, 2021

c# – 如何显示打开/保存对话框asp net mvc 4

我可以请求一个文件,并将其返回.
我不知道如何显示打开/保存对话框.

视图:

function saveDocument() { $.ajax({ url: ‘/Operacao/saveDocument’,type: ‘POST’,DataType: “html”,success: function (data) { //I get the file content here } });}

控制器:

public void saveDocument() { Response.ContentType = “image/jpeg”; Response.AppendHeader(“Content-Disposition”,”attachment; filename=SailBig.jpg”); Response.TransmitFile(Server.MapPath(“~/MyPDFs/Pdf1.pdf”)); Response.End();}解决方法 我认为您无法在浏览器中下载异步文件,只需将用户重定向到该操作,浏览器将打开一个保存对话框窗口.在asp.net mvc中,您可以使用一种操作方法来下载文件,从而使用基本控制器的File方法生成FileResult. public ActionResult SaveDocument(){ string filePath = Server.MapPath(“~/MyPDFs/Pdf1.pdf”); string contentType = “application/pdf”; //Parameters to file are //1. The File Path on the File Server //2. The content type MIME type //3. The parameter for the file save by the browser return File(filePath,contentType,”Report.pdf”);}