Regex help ' and - characters

[LeThomp]

Hi,

I am trying to create a regex match that detects if illegal characters in a string.

Currently I have “^[1]+$” but I would like to add - and ’ as characters to be allowed into it.

Thanks for your help.

---

1. A-Za-z0-9 ↩︎

[Yoichi]

Hi,

We cannot see the above pattern properly due to it’s this forum’s meta character.
For now, Can you try as the following?

System.Text.RegularExpressions.Regex.IsMatch(yourString,"[-'+$]")

If the above doesn’t work for you, please share your current pattern as image or preformated text ( using the above </> menu)

Regards,

[Steven_McKeering]

Hi @LeThomp

Further to @Yoichi’s post, if you don’t know all the illegal characters you can validate your text by inserting the ‘allowed’ characters.

Like this:
System.Text.RegularExpressions.Regex.IsMatch(yourString,“[^a-zA-Z0-9 ]”)

This will match on anything that is not a:

• Number (“0-9”)
• Letter (“A-Z” or “a-z”)
• Space (" ")

Hopefully this helps you.

Cheers

Steve