Steven Hyslop Steven Hyslop - 2 months ago 8
C# Question

C# how to format readline output

currently, I have read line outputting on rich text box a line from a text file however I want to format that line

if (UsernameCheckers.Text != "Username")
string line;

StringBuilder sb = new StringBuilder();

using (System.IO.StreamReader file = new System.IO.StreamReader(@"\\studprint2\PCOUNTER\DATA\REJECT.LOG"))
while ((line = file.ReadLine()) != null)
if (line.IndexOf(UsernameCheckers.Text, StringComparison.OrdinalIgnoreCase) >= 0)
sb.AppendLine(line.ToString() + "\n");
DisplayBox.Text = sb.ToString();

an example will be

BCROSS11,Documentname.doc,\STUDPRINT2\computername,15/05/2010,14:48,\1234566788,Insufficient balance,,,/Ts=4BEEA622,107502,10,,

and i want it to say

Username: BCROSS11

File name: Documentname.doc

Error: Insufficient balance

Date: 15/05/2010,14:48

Computer name: \STUDPRINT2\computername

what do i do?


If the pieces of your string remain at each line in the same order, you can use the String.Split method and slice it in the parts that you need.

Here is a small console application to illustrate the use in your case:

static void Main(string[] args)
    string test = @"BCROSS11,Documentname.doc,\STUDPRINT2\computername,15/05/2010,14:48,\1234566788,Insufficient balance,,,/Ts=4BEEA622,107502,10,,";

    // Split the string and it will return an array of strings
    string[] split_array = test.Split(',');

    // Test output to the console
    Console.WriteLine(String.Join("\n", split_array));


The output will look like this:

Insufficient balance



Now you can count the lines and you will know at which position you have to pull out the information. Don't forget that the index starts with 0 and not 1! Note please that a string: ",,," will be split into 3 empty string. This is why in the output you have empty lines.