VS 2010 Get All Text Files In Directory And Remove A Line If Exists
Aug 28, 2011
I currently have a bunch of text files I need to edit in a folder, I need to edit each file and remove the same line but not all files have this line, so I need to create a script that needs to check if the line exists then remove it.I have 1000s of files, that's why I need help to be able to create a script that does it for me instead of me editing each one manually.I am not sure on how to do this, but I am sure it is not difficult for people that have good experience with VB.net.
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Apr 10, 2012
I have a comma delimited text file, like this;
[URL]
my program can add new lines and select url's but I can't get the remove button working, I read that (maybe) I have to read all lines and write a new file.
If removename = currentfield Then
Dim removedata As New System.IO.StreamWriter("z:station.list.txt")
removedata.Write(""(currentfield))
removedata.Close()
End If
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Jun 13, 2010
I remove a line from a textfile with the following code. It works fine, but when I remove the first line, a blank line has been left. How can I fix this?
Public Sub DelLineFromFile(ByVal filename As String, ByVal line As Integer)
Try
Dim lines As String() = My.Computer.FileSystem.ReadAllText( _
[code].....
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Sep 5, 2011
I have a process serves as an application updater.It checks it's local cache of files and compares this against list of files online.On it's first run there are no files in the local cache and it therefore downloads ~100 of these files.[code]This appears to work very well, since Explorer confirms that all files are extracted and available.However when I later run this process again, it cannot verify the existence of 6 of these files and therefore tries to download them despite the fact that they are clearly both present and up to date.The offending code is a simple File.Exists call which appears to deny the local existence of these files, and therefore tries to get them again.The system continues to work well, but over time the continual downloading of these 6 files is going to get kind of silly.
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Jun 15, 2012
How do I check if a directory exists?
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Jun 2, 2011
I have a security timer to check if the directory exists which I want to access after it's been created by an external application, but what I have done doesn't seem to be the solution although it sounds like a very normal solution to me.
What I have done:
1) External application gets run which is going to create the directory
2) I set the variables to make the timer able to know what to check
3) My application needs to wait till the boolean variable gets set to true, so I put it in a
While:
vb.net
'Non existing files protection
While (Not bDirectoryExists)
If bDirectoryExists Then
Exit While 'In case it got created in the meanwhile
End If
If Not tmrFileCheck.Enabled Then
tmrFileCheck.Enabled = True
End If
End While
4) In my logic, the application should go out of the while now because the variable is set to true, and the code moves on, which never happens..
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Oct 26, 2010
I'm having trouble finding a reliable method to check if a directory (folder) exists on an FTP server. I want to create new directories and then upload files into them but thought it best to check if the directory already exists. Although attmepting to create a directory that already exists does not seem to cause any errors, it does waste a bit of time.
This code reliably checks if a FILE exists:
[code...]
I have attempted to modify this with ListDirectory in place of GetDateTimestamp (to check if a directory exists) but it seems no exception is thrown whether the directory exists or not. I've done lots of Googling but haven't found a satisfactory answer.
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May 1, 2009
I have 2 images inside a folder called Pics..... Image1.jpg and Image2.jpg.What code must i place inside my Submit button to just delete Image1.jpg located here "~/Pics/Image1.jpg"?
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Jun 11, 2009
I need to search in a directory all .xml files and remove it. But this directory can has more subdirectories and folders (depends the user)
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Dec 14, 2009
I am trying to create a program which will read the files that exist in a directory, and then write in a text file the specific information (full file name, date created)i have found several code in the site but i cant make it work, the machine i am running the code is XP and i am using VB2008.The code i have found is the following:
Imports System.IO
Imports System.String
[code].....
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Apr 17, 2010
In vb.net how do you check if a ANY directory exists inside a directory I would need to know if there is a folder inside the c:windows directory (WITHOUT knowing if there is ANY directory is in there).
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Jul 21, 2009
I have this string containing [code]...
Now i want to remove the part betwean the <!-- and -->
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Feb 2, 2009
I am trying to make a button so when clicked will remove all text from a string except for one line. I have tried several methods but it didnt seem to work.
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Jul 29, 2009
I have text file that need to read until *+*+* Top *+*+*and write the content until *+*+* Top *+*+* but i dont want to write *+*+* Top *+*+* this line[code]...
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Mar 28, 2011
Is there way to remove the last 14 characters (last line) from a 1 MB text file without reading in and writing out every single line?
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Oct 20, 2010
I was playing around with my duplicated code to try to do the the following:
I got a text file with lines
"site.com/5261460/heroes"
and some of them are
"site.com/5261460/heroes#viewcomments"
and
[Code]...
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May 1, 2010
I've been trying to compare two text files line by line but I was only able to compare the file lengths. I'm creating a dance mat game and I have a text file of the steps that should be taken to get a perfect score and a text file of the actual steps taken by the user. Each text file contains a time stamp and a binary value indicating which arrow was stepped on. I'm using streamreader and streamwriter to write and read the text files.
Code:
Private Sub Score_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[code].....
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Feb 22, 2012
I have created an XML file using streamWriter.. Now, i want to remove the line breaks in my XML file.. Is there a way to accomplish this task.
[Code]...
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Aug 18, 2010
I know there's ton of examples on the forum but i could not get it to work the way i want.
Sample CSV :-
Unused,172.22.21.2,SD103001
Unused,172.22.21.3,SD103002
Unused,172.22.21.4,SD103003
And what i wana do is change the Unused to Used so basically once this is done it will look like.
Used,172.22.21.2,SD103001
Unused,172.22.21.3,SD103002
Unused,172.22.21.4,SD103003
One thing to mention is i dont want to loop through the whole file and change all the Unused to Used. So basically software fires up opens the file and looks for Unused and changes it to Used and does the rest of the function and shuts down. Next time the software is fired up it goes through and does the same thing.
[Code]...
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Oct 21, 2011
I have a text box and I don't know how many lines there are and I don't know how many digits there are in the number at the beginning of the line.
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Nov 23, 2010
I have a comma deliminated text file which i am using to generate a multidimensional array using the following [code]...
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May 4, 2011
Basically I've got a list of items in a text file, but sometimes a blank line gets inadvertently put in there, and I need to be able to delete that line (or change that line to a set value, either is fine).
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Oct 15, 2009
I'm using a Do Loop to do calculations and display them in a textbox. how I can remove the last blank line at the very end of the displayed values?
I know that it's caused byControlchars.Newline, but I need it to display the calculations line after line.[code...]
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Mar 18, 2009
Im looking for a function that when passed a line will run through a textfile and remove said name for example in a textfile that contains
One
Two
Three
[code]....
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Jun 13, 2010
Ok i have a weird issue. I cant figure out what to use... CSV has two colums :-Name, MobileJohn Doe,60002000Jane Doe,Now i would like to delete the whole line if mobile number is empty.. i cant figure out what to use. Mobile number are 8 digits long.
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Nov 17, 2010
How would one remove an item from a ListBox and then remove that line from the TextFile and repopulate the ListBox with new data in Visual Basic.Net?[cod]...
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Jan 12, 2011
I am justing looking for how to Import whole directory with the text files and picture. I know about the file handling through which we can Import single file to form in vb.
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Mar 20, 2012
This is a new question based on the response from an older post. I needed to save a value when my app is run for the first time that would be applicable to all users who logon to the PC and use my application. The setting is only known at the time of the install so Application settings with application or user scope are unsuitable. I was advised to save the setting to an external file and save/read it as needed. The obvious choice was to save the file to the projects application path (keeping things tidy). Everything worked fine during testing but when the application is installed on a PC, the application path becomes C:program files application nameetc. When I try to execute the code that saves the file, I get a permissions denied error. I understand that it's part of the UAC control but when did it become acceptable to stop developers programmatically creating files in their own application folder?
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Feb 9, 2012
I have some problem with copying the file from one Directory to another directory by create the folder if that folder is not exists in destination directory.
Example:
Source path: C: emp est1.txt
destination path: C:Data
[code].....
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Jun 29, 2011
How can i get the total size of all files in a directory?i tried this but had no luck
Dim dDir As IO.DirectoryInfo
TextBox4.Text = dDir.Attributes.
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