Not able to use wild character in string

Hello,

I am having difficulty in defining a string variable.
Its value is dynamic with only one digit change.

Dim Action, string1
string1 = "Actions;"&Action&";Affected Objects (1)"

In above case the the value of digit in closing parenthesis is dynamic.
I want to define string1 such that it will identify string1 for any value in parenthesis.

I tried to use wild character * and # but its not working.
Please help

Regards
Amit