提交点击并重定向后直接下载pdf

Question

I have a requirement in my system where a report is generated in pdf format on clicking the submit button thereby downloading it and when pdf is downloaded, the page should redirect to a new page. Right now i am able to open a window using window.open for pdf file which generates the pdf in new window and is downloaded ,and after that the old tab redirects to the new url.

The process that i need is the download should happen without opening a new tab and then the page should redirect to new url. I was able to do one thing but not both together.

Any suggestions would be helpful.

string strJSCPTText = string.Empty;

string url = clsAppConfig.SiteURL + "PDFReport.aspx?qid=" + objQ1.QId;

strJSCPTText += "window.open('" + url + "', 'popup_window', 'width=500,height=300,left=100,top=100,resizable=yes');";

strJSCPTText += "window.location.href = '" + clsAppConfig.SiteURL + "QList.aspx" + "';";

ClientScript.RegisterStartupScript(this.GetType(), "script", strJSCPTText , true);

Answer 1

You can use a solution very similar to this one. But simply, instead of using a new window, just use an inline frame, aka iframe :

• MDN documentation for iframe

And don't do the redirect directly. Wait until the iframe is laoded. To do show, subscribe to its onload event, like shown here:

• w3schools iframe onload

Ie, do the redirect inside the iframe 's onload.