ASP.NET MVC refresh header issue_问答_开发者_运维开发者技术经验分享

开发者 https://www.devze.com 2023-02-15 00:11 出处：网络

I want to call an action method (DownloadPictures) after i redirect to a different page, so i use the refresh header

UrlHelper url = new UrlHelper(Request.RequestContext);
Response.AddHeader("REFRESH" , "1;URL=" + url.Action("DownloadPictures" , "Cart" , new { isFree = true }));
return Redirect(returnUrl != null ? returnUrl : url.Action("Index", "Home"));

And my Download Pictures method looks like this with a breakpoint set on the first line, but this method never gets called

public ActionResult DownloadPictures ( bool? isFree ) {
    Cart cart = (Cart)HttpContext.Session["_cart"];
    ....
    //The Download Picture Method returns a File (a zip file)
}

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Any help would be appreciated. Thanks

Most browsers ignore the refresh header

Use another method like javascript etc

e.g.

<html>
<head>
<script type="text/javascript">
  function delayRedirect()
  {
    window.location = "/DownloadPictures";
  }
</script>
</head>
<body onLoad="setTimeout('delayRedirect()', 1000)">
...
</body>
</html>