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Submitted By: marcells23

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Views: 25,446

Last Modified: September 19, 2007

Instructions: input the path to the text file and the string to search for.

using System;
using System.Collections.Generic;
using System.Text;
using System.Text.RegularExpressions;
using System.IO;
namespace searchTxtFile
{
class searchTxt
{
static void Main()
{
string fName = @" ";//path to text file
StreamReader testTxt = new StreamReader(fName);
string allRead = testTxt.ReadToEnd();//Reads the whole text file to the end
testTxt.Close(); //Closes the text file after it is fully read.
string regMatch = " ";//string to search for inside of text file. It is case sensitive.
if (Regex.IsMatch(allRead,regMatch))//If the match is found in allRead
{
Console.WriteLine("found\n");
}
else
{
Console.WriteLine("not found\n");
}
}
}
}

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.
wartech 2008-08-26 23:28:21
Thanks this was a big help!
bsit-ia barkada 2008-10-03 07:28:13
we want a code that is for file system like library system and service record system.
lordelf2004 2008-11-24 13:19:50
Can I count the occurrence of a string in text file?
carck3r 2009-03-29 07:46:28
Thanks! That was so helpful.
chreddy4u@gmail.com 2009-06-26 06:10:06
How to search if I have string like this Request.QueryString("id")