Check whether a cell contains a substring

Question

Is there an in-built function to check if a cell contains a given character/substring?

It would mean you can apply textual functions like Left/R

Answer 1

It's an old question but I think it is still valid.

Since there is no CONTAINS function, why not declare it in VBA? The code below uses the VBA Instr function, which looks for a substring in a string. It returns 0 when the string is not found.

Public Function CONTAINS(TextString As String, SubString As String) As Integer
    CONTAINS = InStr(1, TextString, SubString)
End Function