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how to make a file field to remember the file to upload after server validation fails?

Thread began 6/21/2017 7:36 am by tony | Last modified 1/31/2018 9:24 am by Ray Borduin | 723 views | 4 replies |

tony

how to make a file field to remember the file to upload after server validation fails?

Hi All,
I've set a large form with lots of fields and applied the PERSIST FORM data to populate all field and retain entered data after validation fails.
All text field, select, checkbox and textarea are fine but I cannot find a way to make FILE field to remember the file to upload when validation fails.
Is there a way to use PERSIST DATA in file fields?
TIA
tony

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Ray BorduinWebAssist

You can use the "Validated Entry" values from the bindings. If you need to use both, then add a url parameter to the failed validation in the server validations server behavior like: mypage.php?fail=1

Then you can use a conditional statement to show one value or the other like:

php:
<?php echo((isset($_GET['fail']))?[ValidatedEntryFromBindings]:[PersistentValue]); ?>
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tony

Originally Said By: Ray Borduin
  You can use the "Validated Entry" values from the bindings. If you need to use both, then add a url parameter to the failed validation in the server validations server behavior like: mypage.php?fail=1

Then you can use a conditional statement to show one value or the other like:
php:
<?php echo((isset($_GET['fail']))?[ValidatedEntryFromBindings]:[PersistentValue]); ?>
  


Hi Ray,
I cannot understand you reply completely.
So, I bind the validated entry to the file field and then?
What do you mean by "if you need to use both"?
TIA
tony

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Ray BorduinWebAssist

You probably don't need to use both, so try binding to the validated entry and see if that is enough for you.

Sometimes if you allow people to go back to previous pages before storing in the database you may want to be able to use the persistent form value if it exists, but use the validated field value if the submit fails... that is what I mean by use both, really one or the other based on whether the form validation just failed or not.

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tony

Hi Ray,
just an update on this issue.
Standard browsers do not allow file field to retain persistent data. Ok, I can understand.
So, going back to previous page and re-submitting the same form (with a file field) would produce errors for required file field. This is ok and I'm fine with it.
But now chrome behaves in another way: if you go back to the form page and re-submit the page without re-selecting any file, it will not throw any error and the form is submitted.
This happens only with Chrome (v.63 or v.64). Firefox and Edge work as expected.
What can I do to make the form work consistently across all browser?
Actually I checked the REQUIRED checkbox for the file fields and it seems to stop chrome to submit if no file is selected.

Perhaps Chrome is the new IE6?

Thanks in advance for any help.
tony

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