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  1. using System;
  2. using System.Linq;
  3. using System.Collections.Generic;
  4. using System.Globalization;
  5. using System.Net;
  6.  
  7. static class Extensions{
  8.     public static bool ContainsMoreThan(this string text, int count, string value,  StringComparison comparison)
  9.     {
  10.         if (text == null) throw new ArgumentNullException("text");
  11.         if (string.IsNullOrEmpty(value))
  12.             return text != "";
  13.  
  14.         int contains = 0;
  15.         int index = 0;
  16.  
  17.         while ((index = text.IndexOf(value, index, text.Length - index, comparison)) != -1)
  18.         {
  19.             if (++contains > count)
  20.                 return true;
  21.             index++;
  22.         }
  23.         return false;
  24.     }
  25. }
  26.  
  27. public class Test
  28. {
  29. 	public static void Main()
  30. 	{
  31.             string text = "Lorem ipsum dolor sit amet, quo porro homero dolorem eu, facilisi inciderint ius in.";
  32.             bool containsMoreThanOnce = text.ContainsMoreThan(1, "dolor", StringComparison.OrdinalIgnoreCase);
  33.             Console.WriteLine("Contains more than once? " + containsMoreThanOnce);
  34. 	}   
  35. }
  36.  
  37.  
  38.  
Success #stdin #stdout 0.02s 33880KB
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Standard input is empty
stdout
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Contains more than once? True
https://ideone.com/GOxf9F
language:
C# (gmcs 5.20.1)
created:
12 years ago
visibility:
public

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