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I have an HTML form where Its action is an ASP page. Under certain scenario I want to create a file in the ASP page and return it back. That works fine, but the form continues waiting for the respond. Is there a way t return something to the form while sending a file back?
Thanks
Is there a way t return something to the form while sending a file back?
I'm not sure what "form continues waiting for the respond" means because there is one response stream. It can either be a file or HTML. If 2 responses are needed then a JavaScript program can be used to open a new tab to handle the file download and do a GET or a POST to update the form.
What about using a multipart response? Would that work?
Browsers do not support a multipart response. Again, I recommend two requests, one to handle the form data and one to handle the file download. It is possible to write a JavaScript/AJAX application to download JSON which contains the form data and file stream. The JavaScript application will render the response data.
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Not supported by the browser. While there is no way to detect if the download completed successfully on the client side, you can use JavaScript to poll the server to check if it was successfully sent. Use a request Id, then the JavaScript uses a timer and Ajax to check the status of the download. Be sure to not use session on the ajax call.
I need the files to be downloaded by the Browser. The form data is not important, all I want is to say that download is done.