Attachments

Theodoulos Iacovou asked on May 5, 2021 10:56

Hello guys,

I have built a form where contains various of fields and attachments.

Why after of a wrong input(validation error) the attachments files are gone and need to resubmitted them?

Any solution to avoid this?

Thank you

attachments upload validation

Recent Answers

Jake Kula answered on May 5, 2021 12:29

Hi Theodoulos,

Is this using Portal Engine with an Online Form web part? Or is this in MVC?

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Theodoulos Iacovou answered on May 5, 2021 12:41

Hi Jake,

Is with online form web part.

Thank you

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Jake Kula answered on May 6, 2021 07:01

Hi Theodoulos,

The post back on the server-side validation clears the attachment.

You might want to consider adding client-side validation to your form for better user experience, where the server-side validation is a fallback in case client-side fails for some reason.

Client-side validation should stop the attachment being cleared.

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Juraj Ondrus answered on May 6, 2021 08:36

You can create a custom form control and use HTML 5 uploader instead the old direct file uploader. Or, integrate some third party ASP.Net controls which can hold value after postback.

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