Vadim Tabakman has a post about this for the workflows - Nintex Workflow - InStr Inline Function - Vadim Tabakman

There have been talks about adding this as a feature within nintex as well, please vote here if you feel like:A fn-find() so that you can find the first position of a character or string. – Customer Feedback for Nintex

In the form, if you can try to perform search() then you can use the below function:

function findstr()

{

var str = NWF$('#'+Sentence);

var n = str.search("my");

alert(n.val());

}

where Sentence is the returned ID from the text field and the button to retrieve the value calls the function findstr().

Someone else would have more ideas about it.

Thank you for this answer.

I really need this to be on the form... so the workflow will not help me, and I need to perform this search on a specific string- like a single line of text as the value i am looking for appears in more than one place on the form.

I have tried with the findstr() function but it doesn't work.

thank you

Hi adriana

in Forms you can get the position using a formula:

my_text and my_substr are single line Textbox controls, the position is computed in a calculated value control with formula:

length(replace(my_text, my_substr + '.*', ''))

Kind regards

Manfred

it works!!!! thank you!!!!

it is wonderful:)