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Search Text file for String

Searches a text file for a string by using Regex.IsMatch

Submitted By: marcells23
Actions:
Rating:
Views: 5,405

Language: C#
Last Modified: September 19, 2007
Instructions: input the path to the text file and the string to search for.

Snippet


  1. using System;
  2. using System.Collections.Generic;
  3. using System.Text;
  4. using System.Text.RegularExpressions;
  5. using System.IO;
  6.  
  7. namespace searchTxtFile
  8. {
  9.     class searchTxt
  10.     {
  11.         static void Main()
  12.         {
  13.             string fName = @" ";//path to text file
  14.             StreamReader testTxt = new StreamReader(fName);
  15.             string allRead = testTxt.ReadToEnd();//Reads the whole text file to the end
  16.             testTxt.Close(); //Closes the text file after it is fully read.
  17.             string regMatch = " ";//string to search for inside of text file. It is case sensitive.
  18.             if (Regex.IsMatch(allRead,regMatch))//If the match is found in allRead
  19.             {
  20.                 Console.WriteLine("found\n");
  21.  
  22.             }
  23.             else
  24.             {
  25.                 Console.WriteLine("not found\n");
  26.             }
  27.  
  28.         }
  29.     }
  30. }
  31.  

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Comments


demo123 2008-01-30 03:06:00

Buggy snippet, without object dispose and etc., not optimal written
d10x1d3 2008-06-18 01:48:27

Thanks, This helped a lot.


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