I'm trying to create a text file using the File Object and keep getting the following error message: "The process cannot access the file 'c:dataCompareResults5182009740.txt' because it is being used by another process." Here is my code below:
[Code]...
I am trying to create a log file which I am going to use to populate some controls (DataGridView or Treeview). I am trying to figure out if should use text files or XML files to do so. Effectively the log will highlight multiple phases in a client-side app. The log will be written to at various phases when the project is running. The user will always have the options move on to the next phase or save progress and exit the project. As such, I want the log file to highlight how far the user has progressed throught the various phases AND I want the log to highlight varous information from each phase. Whenever the user starts the project, they will be given the option to load existing log files. So the project will have to read these log files and append them where necessary as the user progresses.
I am not sure what the best way to do this is and below is a rudimentary approach using text files. As you can see, the top of the file would have a summary of all the phases and whether or not the user completed each phase. Next each phase would have a data section highlighting what data was stored along the way. I have used a ":" to denote each section. Then within each section I would obviously need to use a delimeter for all my data. So if Phase1 = True, then I would load all the pertinent data from "Phase1:" into the desired control. Can anyone provide an efficient way of doing this and provide some insight as to whether I should use XML instead. The phases my change during development and I am not sure yet which controls I will be using. Does XML provide more flexibility.
In summary I am looking to create, read/write and append log files and populate controls with the data in varous sections of the log file. Example:
Phase1 = True
Phase2 = True
Phase3 = False
Phase4 = False
[code]....
I want to create a text file or see if a text file exists when application starts. The problem I was having was after creating the text file, I tried to write to text file and got an error saying that another process was using it.
Dim test As String = My.Computer.FileSystem.SpecialDirectories.MyDocuments & " est1.txt"
If System.IO.File.Exists(test) Then
MsgBox("File Loaded")
Else
[code]....
I looked up topics on filestream, but am unsure if this is how to use it. Is my code ok? Is there another way to create a text file?
I want to create a file removal which revieve directory files to delete from a text file..[code]
View 2 RepliesI have a very large text file about 4 million lines that I would like to separate into several small text files based on the strings contained in the first column of the text file. I want to open the large text file, choose the lines that apply, create a new text file with a name that has a number at the end of which will match up with the value in the first column of the text file. I want to then copy the applicable lines to the new small text file, save and close it. I'm not sure how to go about doing this after opening the large text file and using the readline method. What if the folder does not exist? Do we have to create it? I want this procedure to be general, as there could be up to 25 million lines in the text file.
View 13 RepliesAn OLE Object column contains images but the image type (jpg/gif/tiff) is unknown. These images need to be extracted from the DB and saved to disk. The application is primarily using VB.NET but C# examples are welcome too.
View 3 RepliesI am working on a VB Console Application that takes an Autocad drawing type DWG and converts it to a PDF using a shell command that calls a third party application. In this case, acmecadconverter.exe from www.dwgtool.com. Then the PDF that is created needs a unique watermark, so I call a second application for that called pdftk.exe from www.accesspdf.com/pdftk/.
Everything works as intended, except when I try file names that contain spaces. The file system object does not tolerate spaces in the drawing file name. For instance, the following command gives me a system.io.filenotfoundexception...
My.Computer.FileSystem.RenameFile("Test Flowchart1.dwg", "Test~Flowchart1.dwg")
It's the same problem for all of my File System commands. Either file not found or invalid arguments.
The complete script I'm using is here:
Code:
Sub Main()
Dim arrArgs() As String = Command.Split(","), _
i As Integer, folderPath As String, myPart As String, _
[Code].....
I am trying to load the text file to the ListBox Object. But it doesn't work.
' Initialize an instance of the StreamReader object and declare variables
Dim objReader As IO.StreamReader
Dim intCount As Integer = 0
Dim intFill As Integer
[Code]...
I do one project in visual basic 2010.In visual basic 6 project can be make Package and deployment (setup file or install file) file using Package and deployment wizard.But in visual basic 2010 express edition does not have Package and deployment wizard.how to make Package and deployment (setup file or install file) file in visual basic 2010 project?
View 4 RepliesI have a code which read the text file and give me the matching value.[code]My question is how to create a new text file and write all the value in the message box to the new text file? I thought i can find the matching value and cut and write it beside the original value which is myLine but i dont think so we can do that way.
View 8 RepliesI have one combobox, two buttons (Add and View) and listbox. When I click button Add text from combobox is added to text file. This is code for Add button:
[Code]...
I want to create a text file and write some text into this file, but my code cannot create the text file.
Error message:
UnauthorizedAccessExcepion was unhandled by user code Access to the path 'c:save.txt' is denied.
My code:
Dim fileLoc As String = "c:save.txt"
Dim fs As FileStream = Nothing
If (Not File.Exists(fileLoc)) Then
[code]....
I'm creating a small vb.net application, and I'm trying trying to write a list of results from a listview to a text file. I've looked online and found the code to open the save file dialog and write the text file. When I click save on the save file dialog, I receive an IOException with the message "The process cannot access the file 'C: hethe.txt' because it is being used by another process." The text file is created in the correct location, but is empty. The application quits at this line "Dim fs As New FileStream(saveFileDialog1.FileName, FileMode.OpenOrCreate, FileAccess.Write)"
Private Sub btnSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSave.Click
Dim myStream As Stream
[Code]....
I need to create a graph from a text file. The format of the text file is like this[code]...
Basicaly i need to import this data in, the first 4 lines are values for a formula. The remaining values are to be put into a fomula and then graph the result!! Obviously i'm a beginner so just learning as much as i can from the web
How do i create a tab deliminated text file?
View 5 RepliesI have been trying to figure out how to take text i have in a SQL text field and create the correct document from it. Here is the info i have in SQL: MIMEType is a string field that contains one of the following "application/pdf", "application/msword", "application/vnd.ms-excel" or a few others. DocumentBody is a text field that looks like "0M8R4KGxGuEPgADAP7/CQA" this continues for quite a bit. FileName is a string field that contains the original file name such as "test.doc" or "test.pdf"
I have tried using the System.IO.FileStream and System.IO.StreamWriter but in the document it actually writes the text that is desplayed in DocumentBody. I assume I am missing some way to decode this using the MIMEType but i just can not seem to find it.
I want to create temporary text file because after I use the text file, I want to delete it. But I just create the text file and write into th text file and at the end of the process, I want to delete it. However, the system won't allow me to delete it as it being use my
Dim objWriter As New System.IO.StreamWriter("C:\Blind Holes.tmp")
objWriter.WriteLine(lineP(1))
[code].....
Sources of Assistance: [URL]..Create A Fixed Text File From SQL DB Table I am using VS2005 and would like to add script to my aspx page to Output a Fixed Text File From my SQL DB Table to a location on the network. I did this in VB6 using a FREEFILE and PADSTRING off of an Access DB table. However, I can't seem to get it right in the .NET aspx environment. Can someone assist me with this? I have added the VB6 script that is working now and the .NET aspx vb script that I'm trying to move it to.
[Code]...
how to create a save to text file method with a try catch in the method in a class and then call this save method from a button on a window form. I am currently doing the save method under the button directly but to tell you the truth i would prefer to just do it one time and call it from different locations in the various forms i have, then copying it all the time.
View 1 RepliesI am trying to create a text file and write information to it.[code]...
View 2 RepliesWhen the form load I needed to create a text file into "C:\Program Files\User\User.text" But if the file exist it will read line1, line 2 and line3 of the text in different textboxes Then if I click save, it will write textbox 1 to line 1, textbox2 to line 2 and textbox3 to line 3.How do I do it?
View 14 Repliesok i need to create a simple form that has a Stop watch in it that counts up can some one
View 13 RepliesI am trying to create a textfile if it doesn't exist or append text to it if exists in vb.net.
For some reason, though it is creating the text file I am getting error saying process cannot access file.
And when I run the program it is writing text but how can I make it write in new line.
Dim strFile As String = "C:ErrorLog_" & DateTime.Today.ToString("dd-MMM-yyyy") & ".txt"[code]...
I have a menu and I want to add video files inside the menu without recreate the EXE file each time I add a video
Let say the menu called videos And I want to add submenus called video 1, video2 and so on
So all I have to do to add the new video file in the program folder and edit the text file to see the new video when the program run
I've found ways to read from a .txt file into Excel, but (having created and loaded an Excel sheet via vb.net 2008) I want to do the opposite which is to read each cell and row into a .txt file csv format like this: "Surname","Andrew","2","Mr","Hon.Member","PERCUSSION" I guess I need some way of knowing when the last row of data ends. Once in a .txt file I can load data in a variety of ways into several ListBox/s and labels without loading and reading the original Excel file.
View 3 RepliesI am trying to convert from a text file to an image(bitmap) file.
For example, test.txt: 01 23 34 56 78 90
[Code]....
The first step will be reading the data, so I created some VB codes:
Dim openFileDialog1 As New OpenFileDialog()
openFileDialog1.Filter = "Text Files (*.txt)|*.txt"
openFileDialog1.Title = "Select a text File"
' Show the Dialog.
' If the user clicked OK in the dialog and ' an image file was selected, open it.
If openFileDialog1.ShowDialog() = DialogResult.OK Then
' Open file.
[Code]...
The second step will be converting the data to some data format which can be used in a bitmap image. This part is making me confused. Some codes I made is listed below:
[Code]....
I would like to create a text file with some data i am manipulating in a script component and write it to a text file. i know how to write it to an existing text file, but what i would like to do is create the text file programmatically so i can name it textfile(TodaysDate).txt.
View 2 RepliesIs it possible to name the txt file when I create it based on a text box entry?
If for example the text box was called variable, could I take the information in that text box and name the file that.
I am trying to read the matrix (see this link [URL]
This matrix will be in text based file. How can I read this file and create a matrix and fill it in my code. The other question I have is that the matrix has first row and column with value as char and rest values are in integer, how can I take care of this?
I need to create a driver that can be installed as a printer and instead of printing to a physical printer it needs to print to a text file. I have no idea how to do this. I have searched for an answer on these forums but so far I haven't had much luck. I know it isn't easy to create a driver in VB but I don't know if this is technically a "driver" since it isn't interfacing with actual hardware.
View 6 Replies