using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"(?mx)
^(?:\+\d{1,2}\ )?
\(?\d{3}\)?
[\ \.-]
\d{3}
[\ \.-]
\d{4}";
string input = @"123-456-5555
(123) 222-1234
123 555 5555
123.777.7979
+91 (123) 455-6000";
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