How to: Search Strings Using String Methods (C# Programming Guide)
Visual Studio 2005
The string type, which is an alias for the System.String class, provides a number of useful methods for searching the contents of a string. The following example uses the IndexOf, LastIndexOf, StartsWith, and EndsWith methods.
Example
class StringSearch { static void Main() { string str = "A silly sentence used for silly purposes."; System.Console.WriteLine("'{0}'",str); bool test1 = str.StartsWith("a silly"); System.Console.WriteLine("starts with 'a silly'? {0}", test1); bool test2 = str.StartsWith("a silly", System.StringComparison.OrdinalIgnoreCase); System.Console.WriteLine("starts with 'a silly'? {0} (ignoring case)", test2); bool test3 = str.EndsWith("."); System.Console.WriteLine("ends with '.'? {0}", test3); int first = str.IndexOf("silly"); int last = str.LastIndexOf("silly"); string str2 = str.Substring(first, last - first); System.Console.WriteLine("between two 'silly' words: '{0}'", str2); } }
Output
'A silly sentence used for silly purposes.' starts with 'a silly'? False starts with 'a silly'? True (ignore case) ends with '.'? True between two 'silly' words: 'silly sentence used for ' | |
