javascript - 如何在 Javascript 中打开下载对话框？

Question

我在 Aspx 页面中创建函数并从 java 脚本调用此函数，现在我想通过 Java 脚本下载文件。但是下载对话框打不开......

下载.Aspx:

            string pid = Request.QueryString["Did"].ToString();

            DataTable dt;
            dt = common.GetFilePath(Convert.ToInt64(pid));
            FilePath = dt.Rows[0]["FilePath"].ToString();
            FileName = dt.Rows[0]["FileName"].ToString();
            FilePath = System.Web.HttpContext.Current.Server.MapPath("~//" + FilePath +    "");

            Response.Clear();
            Response.ClearHeaders();
            Response.ContentType = "application/ms-excel";
            Response.AddHeader("content-disposition", "attachment; filename=" + FileName + "");
            Response.WriteFile(FilePath);
            Response.End();

Jquery:

function DownloadAttach(pid){

   $.ajax({ type: "POST",
            url: "http://localhost:1988/DownLoad.aspx?Did=" + pid,
            dataType: "xml",

            processData: true,
            //error: function(XMLHttpRequest, textStatus, errorThrown) { ajaxError(XMLHttpRequest, textStatus, errorThrown); },
            success: function(xml) {

              //ShowMsg("projSaveMsg", "Attachment Deleted.");
            }
        });        

}

Answer 1

您不想为此进行 AJAX 调用 - 只需重定向浏览器:

function DownloadAttach(pid){
     window.location = "http://localhost:1988/DownLoad.aspx?Did=" + pid;
}