using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"^[0-9](?:\.[0-9]{1,2})?$|^10(?:\.00?)?$";
string input = @"0
0.1
0.12
0.123
10.0
10.00
9.99
1.12
2.34
11.1
1
2
3
4
5
6
7
8
9
1.1
2.12
3.32
4.45
5.67
6.98
7.12
8.3
9.56
10
1.1234";
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