using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"^(?:[0-9]{9,15}|(?=[a-zA-Z]*[0-9])(?=[0-9]*[a-zA-Z])[A-Za-z0-9]{6,15})$";
string input = @"123456789
12345678Y
Y234Y2
Should not be valid:
12345678
123X4
ABCDEFGHYJ
- Contains between 9 and 15 numbers (Only numbers)
- Contains between 6 and 15 numbers+letters (it must contain both, numbers and letters. Only letters is not a valid option).
";
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