I have jquery pop form to upload a file, after on submit (the page refresh and the pop close) i check something about the file and then if there’s something wrong i need to pop up that form again (from the java code?), how could i do that ?
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You should use ( or must be using) ajax in jquery with a popup.
When the user hits “submit”, control goes to server side code.
The code runs to upload the file.
Whatever the result of upload (success/failure), that message is sent to the popup with ajax automatically.
In case, there is problem in uploading the file then, along with the failure message, you can send in the div which contains your form.
I think rather than refreshing the page to close the popup, allow the user to close the popup with close button.