C# String Like

Posted on By David Kittell

I had a need to find a string like function similar to MSSQL and found this useful function.

public static bool StringLike(this string toSearch, string toFind)
{
return new Regex(@"A" + new Regex(@".|$|^|{|[|(|||)|*|+|?|").Replace(toFind, ch => @"" + ch).Replace('_', '.').Replace("%", ".*") + @"z", RegexOptions.Singleline).IsMatch(toSearch);
}

bool willBeTrue = StringLike("abcdefg","abcd_fg");
bool willAlsoBeTrue = StringLike("abcdefg","ab%f%");
bool willBeFalse = StringLike("abcdefghi","abcd_fg");

Reference: http://stackoverflow.com/questions/5417070/c-sharp-version-of-sql-like

Originally Posted on March 15, 2014
Last Updated on October 26, 2015
All information on this site is shared with the intention to help. Before any source code or program is ran on a production (non-development) system it is suggested you test it and fully understand what it is doing not just what it appears it is doing. I accept no responsibility for any damage you may do with this code.
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