Remove empty line from text file c#

Sign in to vote. Hello all I am developing a little app where I need to monitor a file that is update by several machines. I need to gather each line wrote by each machine so I need access to a specific line number and take that line, store it into a DB table and delete that line. I really don't know how to delete the line without parse the information into a string variable and rewrite the file.

This can lake the app because the file can contain up to K lines Any suggestion will be appreciated. Wednesday, July 6, PM. Sunday, July 10, PM. Hi Ryan Yes, I think close like you at the first solution But following with the main thread, then I just need a way to access a specific line number from the text file and I can easily skip that line and re-write then the whole file.

If It can not be possible then I would need to re-take Rexx programming I hope no for my good enough. Since you are accessing by line number, why delete the line at all? Thursday, July 7, PM. Are you storing all the lines in the database or just select lines?

If you just store select lines, do you need to keep the other lines around? If you give us a little more information, I'll bet we can come up with something that will work well for you. In fact, I store ALL lines except for the header first three lines. Once the data is stored I can drop it away. OK, How do the apps that write to the log file behave if The apps append the file, so: a If the file is missing, the apps create a new one.

Friday, July 8, AM. That makes it easy! Step 1: Rename the file to some temporary name. This makes it yours! Start with: 1. A Windows Forms Project with: a. ListBox, 'listBox1 c. This simple class: C. Posted 8-Mar pm BillWoodruff. Add your solution here. OK Paste as. Treat my content as plain text, not as HTML. Existing Members Sign in to your account. This email is in use. Do you need your password?

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Chances are they have and don't get it. Provide an answer or move on to the next question. Let's work to help developers, not make them feel stupid. Related Questions. How to find duplicate lines in a text file using C.

Removing line with certain text in text file. I want to send a text file line by line through serial port C.

How to parse data from each line of text where prefix keyword matches? Rather than being sure, why not try it? Saving code sounds like a good thing, but if speed is that important to you, surely it's at least worth trying.

Each file is half a GB an I'm appending many such files into one giant file. I've tried and it works like a charm. Haven't done bench marking yet. ReadAllLines filename.

RemoveAt 0 ; File. WriteAllLines filename, quotelist. ToArray ; return firstItem;. Lauren Rutledge 1, 5 5 gold badges 18 18 silver badges 26 26 bronze badges. Prakash Rajendran Prakash Rajendran 3 3 silver badges 5 5 bronze badges.

How about for "the other half" okay, the other 0. Clay Shannon-B. Crow Raven. WriteLine string. RemovedLine, removedLineArgs. LinesRemoved, finishedArgs. TotalLines, finishedArgs. ToString ; TextLineRemover. I wrote a method to delete lines from files. This program uses using System. WriteLine sr.

Write sb. Leonhard P. Adam Hawes Adam Hawes 5, 1 1 gold badge 20 20 silver badges 29 29 bronze badges. ReadAllLines fileIN ; foreach string line in data if! Equals "my line to remove" File. Delete fileIN ; File. Mauricio Kenny Mauricio Kenny 87 6 6 bronze badges.

WriteLine reader. Frying Brains Frying Brains 11 1 1 bronze badge. Remove a block of code from multiple files To expand on Markus Olsson's answer, I needed to remove a block of code from multiple files. WriteLine e. Open, FileAccess. ReadWrite , Encoding. Delete file ; File. WriteLine excpt. EndsWith ". Joel Wiklund Joel Wiklund 1, 2 2 gold badges 12 12 silver badges 20 20 bronze badges. Why can't use this?

ReadAllLines openFileDialog1. FileName ; Then look up the line you need to delete and replace it with "" : lines[x]. Replace lines[x], "" ; Done! Marty Brant Marty Brant 7 1 1 bronze badge.