I'm fairly new to VB.NET, and I'm working on a text editor with a tabbed interface. I deal with large text files. Should I have each tab / text document open up in a new thread or a process? I basically want the entire application to always run fast as the text editor is just one part of it. If I have several large text files open I don't want the rest of the application slowing down a bit.
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I have a window application develpoed in vs 2008, framework 3.5, in which i have put a button.. Now where i click that button the other text boxes are filled up with the data from database thru web service.. what i want is while all text boxes are being filled i want to show an animated loading gif image till data loading is completed in all the text boxes.. i have tried to use image picture box but while data is loading gif image is displyes but in static mode.. cant see animation... i think this is because data loading and animation both are done thru one UI thread..
View 8 RepliesSo I have made a text editor using rich text boxes and it is made to save/open rtf files. I have 3 issues I was hoping to get answers for...
1. Can I (and if so how) make it able to open/save text files and rtf files (so the user can choose which way to save it)?
2. I added the ability to color the words, but instead of coloring just the highlighted parts - it colors everything in the file. How do I change that so it only colors selected text?
3. I also added the dialog for Font changes, but it does not seem to work correctly. I want it to change font/size/etc of whatever is selected. Right now when I highlight stuff and then go into Font it allows the dialog box but does not actually change the font size/type/etc in the file it has open.
Here is the code for the above 4 mentioned areas...
Save...
Try
Dim dlg As SaveFileDialog = New SaveFileDialog
dlg.Title = "Save"
dlg.Filter = "Rich Text Files (*.rtf)|*.rtf"
[Code] .....
So essentially, I have this text editor. How can I make it so when I drop a text file over it, it opens it in textbox2? Or when I doubleclick on the file, it automatically opens it in my program (in textbox2).
View 21 RepliesMy problem is I have very large text files (approx 2GBs+).They have records in them based in one per line.Each line is not the same length and the data can be different lengths all the time.I am currently reading the file line by line, then splitting the data by common characters in the records. To process the full file it currently takes 3hours. This is way too slow for its purpose.
View 7 RepliesI have two large text files (about 1.8 GB each encoded in UTF-8). And I want to check if the content of both files are 100% same. If there is single character difference then it is considered not same, i.e. both files are different. How do I do that? So my question is: How to check if 2 large text files content are 100% same?
[Code]...
I had to develope a program that shows a list of names and age in text editor. I am able to open the file in text editor but not getting the names and ages when typing it in the text box and clicking my "write button" or the file menu write. Everything else seems to be working fine with the exception of getting my message box twice from the event load. I don't know if the below is enough for you to assist me but this is what I should see in the text editor:
[Code]...
I need to write a small program to get a certain task done, but I have zero experience in manipulating text files. how to write the following program:The program should take all the text files in a folder, and add the data in a csv text file, with columns:
Text file Name, Content of text file Easy as that. I'm sure this cannot be that hard, please give me a start on this.
I'm busy with an applicaton which reads space delimited log files ranging from 5mb to 1gb+ in size, then stores this information to a MySQL database for later use when printing reports based upon the information contained in the files. The methods I've tried / found work but are very slow.
or is there a better way to handle very large text files?
I've tried using textfieldparser as follows:
Using parser As New TextFieldParser("C:logfiles estfile.txt")
parser.TextFieldType = FieldType.Delimited
parser.CommentTokens = New String() {"#"}
[Code].....
I am new to VB.Net, but I can tell you so far I love programming. That said, I'm building a tool basically to parse and display simple plain text log files. I'm hitting one stumbling block that really has me frustrated.
Other tools are able to load huge log files (500MB even) in a number of seconds. My tool, basically hangs loading a file that is maybe 5MB.
I'm using the MyString = StreamReader.ReadToEnd to read the contents into a string, and then RichTextBox1.Text = MyString to display the contents. That said, I really want to display the contents in a datagrid, but there has to be a better way of doing this?
How can I get my application to load larger files and display them faster? What am I doing wrong?
I am trying to find a way to show a large amount of data that spans across multiple forms and text boxes. I am making a somewhat summery of the input strings.
View 3 RepliesI am trying to make an application that will load any Javascript file into a rich text box.
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I know how to load a txt file into a single text box, but im having trouble loading a text file with multiple output information into multiple text boxes using commas to separate the information.
ex)
txtfile:
123, Employee Name, Employee DOB
[code].....
I've written a loading program that writes text files to our database. The text files are dumped by another system every 2 hours onto on a shared network drive at my work. Here's the problem though - the files don't have a date/time stamp within them. I've been getting the date for each file from the creation date. That works okay, but when I've written loading programs in the past, I like to move the loaded files into a folder called "Loaded Files". That way, I can quickly see visually how many files I've loaded vs how many have not be loaded.
The problem this time, is that if I were to move the file into another folder, the creation date changes...a lesson I learned when I copied all of the files into a directory on my C: for testing. They all had the same date/time stamp!My question is, what's the best way to handle this? I don't want to move the files after loading them if it alters their creation date. I mean, what if I have to go back and load one for some reason, the date will be lost forever. I also don't want to write something into the software that has to check a file each time before loading it to the database.
I have learnt how to create a basic random word generator. I now want to take this further but I would like to know if what I am thinking of is possible. I am in the process of wanting to create a random name/word generator which reads/loads an array from a text file. think this part I will be Ok with as there are some vids and tutorials about. However, I wish for the text file to have multiple arrays and then dependant on the day and time of the day, only a string from the current time array is loaded. Does that make sense and is it possible? I am happy to spend time learning how to do this but only if it is possible.
View 3 RepliesI'm adding a method to find and select text in my text editor. Everything worked fine, including the ability to find all instances of the text. My problem came when I tried to make it more user-friendly (doesn't it always?). Originally I had only a menu item with a shortcut( Ctrl + F) which invoked an input box.
Then I added a textbox and a button (similar to that seen in a web browser's Find() method) that calls the method in the same manner as the Find/Replace menu option and displays the desired text in the textbox. Everything works fine except that the text is not selected. I have MessageBoxes displaying the values of required variables in 3 places (marked ***FOR DEBUG ONLY***) to make sure that no values are being changed, but all variables are the same. The method still locates the text, but it is not highlighted.
I think it could have something to do with which object has focus. (When I click the button, the selected text loses focus?). But if I click everything with the menu items, it still works...
Here is the
*****code with [code] tags in the 4th post on this thread****
Public Sub FindText()
'Make sure there is text in the textbox...If txtTextbox.Text <> "" Then'Find the end of the current selection... Dim curSelectionEnd As Integer =
[Code]....
im trying to addapt my printing code so it will print my text what ever i have selected it to be in the text editor. here is the code i have at the moment
Private Sub PrintDocument1_BeginPrint(ByVal sender As Object, ByVal e As System.Drawing.Printing.PrintEventArgs) Handles mypdoc.BeginPrint
str = CType(Me.ActiveMdiChild, frmSplit).RTB.Text 'If this was a single text
[Code].....
[Code] each file is about 30 kilobytes in size, and they contain raw hardware statistical information in a comma-deliminted format. I want to do the following with these files as my end-result.
NEWFILE.CVS contains the contents in this format:
metric_group_001 metric_group_002 metric_group_003 metric_group_004 etc.
I don't want APPEND, I want to concatenate the contents of these files into one large master file. I am able to do this MANUALLY, but I need to have a DYNAMIC method of doing this because of the number of files will change depending on the test we are doing with the hardware. This is the code I am using to do this process manually and it does work, but I need a DYNAMIC method in place. [Code]
I am trying to upload 2 large files to a ftp server by uploading as one file to a location. I have it working if the files are small but it crashes with large files.
For i As Integer = 0 To filelist.Count() - 1
Dim fRequest As FtpWebRequest = WebRequest.Create(ftpPath & "/Reports/" & filelist.Item(i))
fRequest.Credentials = New NetworkCredential(username, psswd)
[code]....
I'm working on trying to split a large file from say 3gb to multiple 500mb files with a .1, .2, .3 etc... extension. My output is one 500mb file and one 28kb file. What I'm missing to continue reading the filestream into the 2nd split file.
Sub SplitFiles(ByVal inFile As String, ByVal newFileSizeBytes As Integer)
Dim i As Short = 1
Dim fsInput As New System.IO.FileStream(inFile, FileMode.Open, FileAccess.Read)
Dim fsOutput As System.IO.FileStream
Dim bytBuffer(4096) As Byte 'holds a block of bytes for processing
[Code] .....
I have many text files in a folder. What I can do now is to read through one text at a time and insert it into the database. My little app reads a text file when I debug it. So, I need to run it several times to read all those text files and import them into the database.
My question is how to read multiple text files inside a folder at a time. Here's my code which works fine but it reads only one text files at a time.Private Sub btnRead_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnRead.Click
[Code]...
I need a way to loop through a folder and check if there's text file. But I cant get it right. Can anyone show me some code or links ? I'm using VB.NET, .NET 3.5
I am attempting to make a text editor. I have a folder which contains hundreds of text files. I would like to search through all files simultaneously, for some text then replace the text with other text & save, & overwrite originals. I've got most of the basic structure done, but I've go no idea how to search for text in all files in a folder.
View 13 RepliesI am running batch jobs on a job scheduler. One of the step is called 6 times so that we can execute the step parallely (to utilize the max server resource and to execuet the step in less than 2 hours rather 6hours). At the end of each instance it has to create a text file (6 instances = 6 text files) and the next job in the queue only runs when it could find all six files,
I am trying to create 6 dummy text files using vb.net.
1. to create a text file like file1.txt, when each instance of the step is completed running and it should exit the code after a file is create.
2. In this manner the code is executed 6 times and it must produce 6 files like file1.txt ....... file6.txt.
right know the maximum code i could write was ( and this is not correct)
Public
Function CopyFile1()
As
Integer
[Code].....
I am currently creating a merging program which is processing multiple text files with header. I've manage to merge the text files but I'm stuck with the header that needs computation.
path of input files and header explanation: Input Files
After merging, I need to put back the header, adding up each values, which I explained in the path above. How can I do that?
Here's my current code:
Imports System.IO
Public Class Form1
Dim openFolder As New FolderBrowserDialog
'The routines must be
[Code] .....
creating a function that reads in data from multiple textfiles into a combobox. The function just needs to read line 1 into from every text file into the combobox.
View 3 RepliesI have ~ 1 page how to that is currently in a text file which I want to add to a richtext box.I am just wondering if there is some way I can just copy/paste it so it keeps its formatting etc.
View 1 RepliesI am making a basic form that has 1 button and a rich text box.I need to click on the button and have it call a random line from 3 text documents (so 3 lines total) and place them in the rich text box, each on a different line.
"Quick example"
3 Text files
Firstname.txt
Lastname.txt
Number.txt
Click on button named generate and in the text box below it places
First Name: Shara
Last Name: Harrow
Number: Seven
I have a multiple text files that I need to merge. but I need to compare the reference number before merge it.[code]What will be the fastest way to deal it read line by line to compare. the text file consist of thousand of line
View 1 RepliesI made an application that searches for an text file and copy it toc: est. But when is find multiple files i cant copy it because it will overwrite the file in c: est *.txt.Is there a way i can copy a file and Keep the origional file name?[code]...
View 16 RepliesHow can I combine multiple *.txt files in a specific directory into one txt file in another directory using VB.NET? (And to delete blank lines at the end of the new file)
I know how to do it in vbscript:
Const ForReading = 1
Const ForWriting = 2
Set objFSO = CreateObject("Scripting.FileSystemObject")
Set objOutputFile = objFSO.CreateTextFile("C:logsimportoutput.txt")
[Code] .....
