using System;
using System.Text.RegularExpressions;
public class Example
{
public static void Main()
{
string pattern = @"(?<=Description Amount\n)(?:(?!\d+,\d).*\n)*";
string input = @"Description Amount
Being the Amount received from above branch in favour of SAF SAF
FOR THE MONTH OF JANUARY-2021.
3,24,500.00
Description Amount
Being the Amount received from above branch in favour of SD SAF
VALUE SAF OF CHAPAINAWABGANJ AREA FOR THE MONTH OF
JANUARY 2021
9,18,049.00";
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