Check if in string there are 18 digits

Hi,

I have to check if string contains a substring that has 18 numbers. I tried with is Match but with no result.

String Example:

Test test 111111111111111111 test test

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@camaro123 You can use regex.ismatch so it will give Boolean result

System.Text.RegularExpressions.Regex.IsMatch(str_PdfResult,“(\d{18})”).ToString

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Hi thanks. Do You know how to do same thing for date with pattern DD-MM-YYYY ?

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Do you want identify date from string?

actually I need also the bool if it exist in the string

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Than you can use this regex

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