using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"^[a-zA-Z]+([- ][a-zA-Z]+)?(, [a-zA-Z]+([- ][a-zA-Z]+)?)?$";
string input = @"LastName
LastName SecondLastName
LastName-SecondLastName
LastName, F
LastName SecondLastName, F
LastName-SecondLastName, F
LastName, FirstName
LastName SecondLastName, FirstName
LastName-SecondLastName, FirstName
LastName SecondLastName, FirstName SecondFirstName
LastName SecondLastName, FirstName-SecondFirstName
LastName-SecondLastName, FirstName-SecondFirstName
LastName-SecondLastName, FirstName-SecondFirstName!
LastName-SecondLastName, FirstName#SecondFirstName
LastName, FirstName, ThirdName
LastName , FirstName
,FirstName
, FirstName
LastName,
LastName,Any special Character (,?!#@%* etc)
LastName,FirstName";
RegexOptions options = RegexOptions.Multiline;
foreach (Match m in Regex.Matches(input, pattern, options))
{
Console.WriteLine("'{0}' found at index {1}.", m.Value, m.Index);
}
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for C#, please visit: https://msdn.microsoft.com/en-us/library/system.text.regularexpressions.regex(v=vs.110).aspx