I am new to Info path, I know how to limit the no.of characters entered in to the text box using string-length function. But is there any way we can limit the number of Words entered in to an multiline text box.

For example a field which is asking to enter 10 words are lesser

  • Why don't you go with number of white spaces? If you can count number of white spaces you can easily count the words and go on... – Naveen Jun 25 '15 at 17:39
  • How do I do that, I tried using string-length(.) - string-length(translate(., " ","")) > 10 given herelink but that doesnot work – Info Jun 25 '15 at 17:52
  • string-length(field) - string-length(translate(field, " ", "")) should give you the number of white spaces. Try and let me know – Naveen Jun 25 '15 at 18:13
  • Thanks Naveen string-length(field) - string-length(translate(field, " ", "")) <10 works. The I did was I was tying more than 10 words in the text box thinking it will show ScreenTip while typing. But once i tab from the text box I get the ScreenTip – Info Jun 25 '15 at 18:53
  • But friend, i thought of putting that as answer once it had worked for you so that I would get few points. I was actually waiting for your comments on my suggestion. :) :) – Naveen Jun 26 '15 at 3:08


string-length(field) - string-length(translate(field, " ", "")) < 10 which is inspired from KB Article

Formula to count the number of occurrences of a single character in one cell If you are concerned about searching for a single character in a single cell, the formula is simplified to: =LEN()-LEN(SUBSTITUTE(,"a",""))

Let me know if you have any questions.


I have received the correct answer from Microsoft Developers Network from Sathiya Kamalanathan. The validation which works is:

string-length(.) - string-length(translate(., " ", "")) > 10

I hope it will help others to solve similar problems.

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