using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"^(?:0|[1-9]\d{0,2})(?:\.\d{3})*(?:,\d{2})?$";
string input = @"Positive results
0
0,55
1
1,60
10
10,70
100
100,80
1,10
1.000
1.000,20
10.000
10.000,03
100.000
100.000,08
1.000.000.000
1.000.000.000,10
Negative results
0,0
1,1
1,000
1000.000
1.000,1
1.000,100
1.0,00
1.00,00
1.000,0";
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