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Re: SOS: How to validate the attachment size of picture control

Ana313 — Fri, 12 Jul 2019 17:11:28 GMT

Hi.. i know this post is very old. but I want the similar requirement. How to add the validation when the file size attached is greater than 10kb in info-path form. I am using Infopath form 2013 and SharePoint 2016 on premise. I have tried the base 64 coding by using string length and the javascript on new item page. But both didnot worked. Your help would highly appreciate.

Re: SOS: How to validate the attachment size of picture control

Hilary Stoupa — Tue, 10 Nov 2015 17:32:48 GMT

Validation should happen as soon as the file is attached. Try making the number in your expression much smaller for the sake of experimentation, preview, and attach a large file and see if the control gets a red outline.

Re: SOS: How to validate the attachment size of picture control

hajjaj — Tue, 10 Nov 2015 05:22:52 GMT

it is not validating , when I submit , its is not validating the size at all!

Re: SOS: How to validate the attachment size of picture control

Hilary Stoupa — Mon, 09 Nov 2015 23:00:39 GMT

This was for IP 2007, but I just successfully tested with 2013. Can you elaborate about what is not working?

Re: SOS: How to validate the attachment size of picture control

hajjaj — Sun, 08 Nov 2015 06:31:01 GMT

it works with every except me :'( , what is the issue with it ?

Re: SOS: How to validate the attachment size of picture control

realminds — Fri, 14 Sep 2007 10:41:13 GMT

I some how managed it by setting field value to 0 in actions and another action wit ha msgbox "Too big picture"

Re: SOS: How to validate the attachment size of picture control

realminds — Fri, 14 Sep 2007 06:32:44 GMT

I am somehow unable to restrict user to attach picture. Message is displayed "Picture is too big" but picture is attached.

Re: SOS: How to validate the attachment size of picture control

Patrick Halstead — Fri, 14 Sep 2007 06:03:10 GMT

I just learned something new. This is a sweet trick for limiting image size.

Re: SOS: How to validate the attachment size of picture control

realminds — Thu, 13 Sep 2007 19:47:43 GMT

Dear Davidair,

You are the champion, you saved my life :). I went into picture control properties in IP 2007, then in rules, added required rule as an expression and it worked.

Thank you very much as i was thinking of hell of Base64 encoding in VSTA.

Re: SOS: How to validate the attachment size of picture control

davidair — Thu, 13 Sep 2007 19:28:22 GMT

Use declarative validation...

Suppose your attachment field is called field1 and you don't want it to be bigger than 100k, that means that length of the piture field cannot be more than 136533 charaters (assuming UTF8).

1. Open the Data Source pane
2. Double-click on field1 to bring up its properties
3. In Validation, add a new condition
4. Select Expression, type this expression in: string-length(.) > 136533
5. Enter the text to be displayed when the error condition occurs

Now when you edit the form, if the image is too big, you will get an error validation and the user will be warned on save.

Re: SOS: How to validate the attachment size of picture control

realminds — Thu, 13 Sep 2007 18:45:27 GMT

Dear Davidair,

Thanks for your reply, but i am not getting you point, should i use some rule, or use this validation in script? in rule i can't use integer value.

Re: SOS: How to validate the attachment size of picture control

davidair — Thu, 13 Sep 2007 05:47:33 GMT

You can either do it the hard way, as in decoding the header (see more here: http://www.infopathdev.com/forums/p/1474/6839.aspx#6839).

Or you can just make the following claim: binary files are encoded with BASE-64 encoding, so you only have 3 bytes get encoded with 4. That means that the original size of the file is the string length of the XML field * 0.75 (approximately because there is the header as well but it is negligeable).

With this, you might simply use declarative validation instead of writing code, simply say "if string-length of this control is greater than this value, it's an error".

SOS: How to validate the attachment size of picture control

realminds — Wed, 12 Sep 2007 17:47:45 GMT

Hi,

Can anybody help how to extract/find attached picture or file size of file or picture control at design time or using code behind (.Net or J/Vb script) at some event handler. Basically i have a form which is having many file/picture attachment controls in different sections, But while submitting i want to make sure that attachment size is limited to some KBs. Any help would be greatly appreciated.