InfoPath Dev

Here is the calculated field. Thank you!

Thank you for your quick response. It works perfectly as to what I am looking for. You're the best Hilary! Much appreciated. :) You have a wonderful evening!

Here, I added a validation rule. :-)

 Yes, It's a field just for entering numbers. Thank you very much for your sample. It's very helpful. :-). Just one more question, is it possible to add another condition into your sample provided that if user enter more than or less than 10 digit phone numbers, the phone number field will display a red margin around ...

No. It doesn't. You can include the XML as a resource file in the template which doesn't require queries?

Where do you intend to use this? It looks like it would be for the field if only numbers were entered... In which case, in a rule on the field you wish to format, set the same field using this formula, probably with a condition that the field doesn't contain () or -. See attached sample - save the file locally, right click and select design.

Can you tell me where in the form to look for this?

As with the CSS question, this sort of modification won't be possible in an Office 365 environment.

With Office 365, this work around is not an option - we don't have access to the server files, I'm afraid.

Here is my form. I tried it with this xpath: sum(dfs:dataFields/my:SharePointListItem_RW/my:GJ2020Q3APV[../my:PrioDerT_x00e4_tigkeitOptional = current()/../my:Filter]) But it still doesn´t work. Thank you!