using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"(?<![A-Z0-9])(?=[A-Z0-9]{10}(?:[^A-Z0-9]|$))([^0]*0*(?=(?:[^A-Z0-9]|$)))";
string input = @"ABC1000000 - valid
3212130000 - valid
0000000000 - valid
ABC1000100 - invalid
0001000000 - invalid
0000
0 0000000000
00000000000";
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