Question

So I have this string: “ID:300,Order:1,Number:30.99,Other:null}”. I’m using c#.

I would like to use a regex to hide the “30.99” from the Number “parameter”, and replace it with * for security reasons, but I i’m still new with regex and can’t figure it out.

The “Number” can be any decimal form 0 to 999999999…….

The final result would be “ID:300,Order:1,Number:*,Other:null}”

Somebody can help me on this one?

Answer 1

You can do it using Regex.Replace:

string s = Regex.Replace( 
    "ID:300,Order:1,Number:30.99,Other:null",
    @"(?<=Number:).*?(?=,|$)",
    m => "*" );