extracting file content

Question

hi guys

i have a text file with the contents as follows

code x y

2346 2 3

3456 5 6

2345 9 7

i need to compare a value for example :s=3456 with the first column 'code' values and see if it matches or not.

how can i do this.

thanks

Manas Mohapatra · Answer

Try like below: // Get all the lines which contains the value as 3456 string [] lines = (from rec in System.IO.File.ReadAllLines(@ C:\Users\Public\TestFolder\WriteLines2.txt ) where rec.Contains( 3456 ) select rec).ToArray(); // check if it contains in First column foreach ( string temp in lines) { string [] tempArr = temp.Split( new char []{ ' ' } StringSplitOptions.RemoveEmptyEntries); if (tempArr[0] == 3456 ) { // Apply your own logic } }