using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"(0[1-9]|1[0-2])[\/\-](0[1-9]|1[\d]|2[\d]|3[01])[\/\-](\d{2,4})";
string substitution = @"";
string input = @"31/12/2019
12/12/2029
12-19-19
19-23-2019
01-23-2018
15-89-2019
02-26-1974
02-50-1978
11/05/19";
RegexOptions options = RegexOptions.Multiline;
Regex regex = new Regex(pattern, options);
string result = regex.Replace(input, substitution);
}
}
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