using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"\+7\(\d{3}\)\d{3}-\d{2}-\d{2}";
string input = @"+7(912)123-45-67
+7 (999) 999 - 99 - 99
+7(999)999-99-99
+7(aaa)bbb-cc-dd";
foreach (Match m in Regex.Matches(input, pattern))
{
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