How to read the next line in a text document?

Question

I want to know how to read the next line of a text document. If I click the button, it should open the text document and read the first line. Then, if I click the "next" button it should read the next line. How can I do this second button? In C and other languages there are some commands for this..

score 5 · Accepted Answer · edited Jul 18 '19 at 18:53

5

You need a StreamReader object and then you can invoke the ReadLine method. Don't forget to add the "@" symbol before file path name.

StreamReader sr = new StreamReader(@"C:\\YourPath.txt");

Then on your button clicks you can do:

var nextLine = sr.ReadLine();

The result of each line will be stored in the nextLine variable.

edited Jul 18 '19 at 18:53

markymark_prod

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4

answered Jun 08 '13 at 13:52

Darren

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I am so stupid, I already used the ReadLine() command but forgot to save the line as the text of the label LOL but thank you and the other guys! – iAmFastAndYou Jun 08 '13 at 14:00
@iAmFastAndYou - glad you got it sort. If the answers helped please mark one as the answer. – Darren Jun 08 '13 at 14:01
Do you know how to get back to the first line of the document? – iAmFastAndYou Jun 08 '13 at 14:03
1

@iAmFastAndYou - http://stackoverflow.com/questions/2053206/return-streamreader-to-beginning – Darren Jun 08 '13 at 14:05

score 4 · Answer 2 · answered Jun 08 '13 at 13:55

You can use StreamReader.ReadLine

if (myStreamReader.Peek() >= 0) 
   {
      string line = myStreamReader.ReadLine();
   }

If you don't want to keep the file open, you can start by reading all lines into memory using File.ReadAllLines

string[] allLines = File.ReadAllLines(path);

How to read the next line in a text document?

2 Answers2