Adding an onchange event to the newly created input would allow us to do stuff once the user has selected the file. In order to get to the actual content of the file, for various reasons.
Trying pasting the above code into your devtool's console window, it should produce a select-a-file dialog, after selecting the file, the console should now print the contents of the file. Let's try to create a file select dialog to change stackoverflows background image to something more spicy For the sake of completeness, Ron van der Heijden's solution in pure JavaScript:.
Check this fiddle with the code above. To expand on the answer from 'levi' and to show how to get the response from the upload so you can process the file upload:. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. How to open select file dialog via js? Ask Question.
Asked 8 years, 8 months ago. Active 3 months ago. Viewed k times. Easy way is adding file-form into main-form, but it's prohibited. Improve this question.
Luciuz Luciuz 1, 4 4 gold badges 12 12 silver badges 15 15 bronze badges. You cannot simulate native open file dialog behaviour, fortunately — A. Just straight javascript. Add a comment. Active Oldest Votes. Improve this answer. Ron van der Heijden Ron van der Heijden It's much, much more elegant solution than making the input field transparent — Aron Lorincz.
I used the same technique in pure js: form. Any help or suggestions please? Karol Selak 3, 4 4 gold badges 27 27 silver badges 59 59 bronze badges. ArK ArK An alert is not a file-dialog?
Add a comment. Active Oldest Votes. Improve this answer. Somwang Souksavatd Somwang Souksavatd 4, 28 28 silver badges 29 29 bronze badges. It wouldn't produce a error, it would just try and navigate to the current page, with the added at the end. Which would make the page jump to the top. So it's good to be there, just for a different reason : — manavo.
Though I haven't tested it enough, "visibility: hidden;" seems more compatible. In addition, despite the opacity: 0 a click event will trigger if the "invisible" element clicked, while visibility: hidden will not. MDN indicates that document. Show 1 more comment. Simplicity is the ultimate sophistication — ncubica.
BTW, someone pointed one catch with this solution, in Safari, inputs hidden with display: none are disabled. The workaround is using a different approach to hide the input. I'll update the answer to reflect that. JPdelaTorre It would be way better if you were to use opacity: 0 instead to hide the input. Show 4 more comments. Ray Nicholus Many browsers support the accept attribute on file inputs. This allows you to limit the file types displayed in the file browser dialog. Fine Uploader provides access to this functionality via the acceptFiles property of the validation option.
See the validation section of the options documentation for more details. Note that the accept attribute is not supported in IE9 or earlier. KatLimRuiz No, the answer you linked to is not a good solution. This will cause IE to throw an error if you end up submitting the associated form programmatically as well.
Tigran Saluev Tigran Saluev 3, 1 1 gold badge 25 25 silver badges 37 37 bronze badges. This should be the correct answer. Silly question, but how would you get the chosen file afterwards?
This is a dangerous solution that may result in unexpected issues. For example, some browsers such as IE may prevent a programmatic form submit if the file input is also programmatically opened. Charleston Unfortunately, it doesn't work in some browsers. They should make it work though : — Tigran Saluev. As of , this solution seems the nicest. Works in all of them.
Show 9 more comments. Karol Selak Karol Selak 3, 4 4 gold badges 27 27 silver badges 59 59 bronze badges. So simple and effective, I feel like it is the best solution for this! Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Asked 5 years, 10 months ago. Active 5 years, 10 months ago.
Viewed 14k times. Improve this question. Add a comment. Active Oldest Votes. Is it possible? Of course. JavaScript sends data to a server side endpoint Why care about javascript when you have standard HTML forms which can submit data to the server in a purely browser agnostic manner, like shown in point 1.? The server generate the file on the fly based on the data sent from the client Yeah, that's like standard HTTP protocol.
Improve this answer. Darin Dimitrov Darin Dimitrov k gold badges silver badges bronze badges. A Save As dialog is simply shown for the user to select the file destination and no page reload occurs whatsoever.
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