I am going to handle an event to write all files in a directory to a text file.But only the last file's context is saved successfully, I think that because of overwriting.
Private Sub ExtractButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ExtractButton.Click
Dim FileName As String
Dim FileItem As ListViewItem
[code]....
the program im working on is a form with multiple controls (textboxes,combobox, etc.) and it goes out and reads in a text file called test2.txt and plugs in values to the controls. the user will be able to change text in the fields and when they hit apply, it needs to overwrite the file.
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim theFile As String = "c:\temp\test2.txt"
Dim lines() As String = System.IO.File.ReadAllLines("c:\temp\test2.txt")
[code]....
with the given code, it errors out and tells me the file is already being used and can't be copied.how can i go about closing the file and THEN overwriting it?
ive managed to finally get it all working.if i click submit.. a file is then created in xml format but if i enter new data it will overwrite the same file how do i stop this.[code]how do i stop this from overwriting?
View 1 Repliesi have made a program that takes info from your registry and uploads it so I can fix it and you can download the new version of a key that makes things work faster.... when someone uploads a file, it works good, and i can look at the ftp's text file and see it, but every time someone ELSE uploads something, it overwrites the previous text file and makes another one, which deletes the first one. i would like so that when another person uploads something, it will just be on the second line then third, so on so forth.
View 1 RepliesI'm creating an app that will be run via scheduled task, it will save an XLS file with the following naming convention:'S14-PROORDEREXP-Thursday' (the Thursday will change depending on what day of the week it is)I have the following line of code to save this excel file:
VB
If gstrJob = "S11" Then
xlWorkSheet.SaveAs(gstrFilePathS11 & gstrFileNameS11 & gstrFileTypeS11)
Else
[code].....
this will work fine the first time this scheduled task runs and there are no existing files but at the end of 1 week when I will be overwriting the existing files, how do I tell the application to overwrite the existing files without waiting on a yes prompt from me which it does in debug mode?
The program I am making uses a save dialog box and when I save a file it works fine. When I save and overwrite the file it seems to append the data. For some reason it keeps all previous data and just writes the data again. I'm using the XMLWriter to save the files. Is there any way of fixing this?
View 5 RepliesI have written a program which reads the text from the text file cleans it for some specific letters or phrases and then saves it in another text file. I am having a problem in rewriting the processed or cleaned data (after it has removed some phrases and characters)onto writing the file.
I have successfully written the text on the file except one problem. In each loop when each string is cleaned and is written on the text file, it overwrites the previous string. What I want is that it should write in the next line or in the same line.
My code is given below:
Private Sub btnopen_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnopen.Click
FileOpen.Title = "Please select the file"
[Code]...
how can I write the text in the new line and avoid overwriting of text in my text file.
How can I write in a text file that will not overwrite its content.[code]...
View 4 RepliesI have a project where I am looping thru specific files in a directory using a For Each FileInfo in DirectoryInfo.GetFiles() statement. My question is if I overwrite the current FileInfo object, will it still retain the reference to the object even though the file is no longer the same?
Code Snippet:
For Each fi In folder.GetFiles("*.idx")
Dim reader As IO.StreamReader = fi.OpenText()
index = reader.ReadLine()
values = index.Split(",")
[code]....
I have VB.net code (2005) that updates an Excel (2003) file but on close I get a pop up from Excel when my code is trying to close it. How can I close and save changes and not get the pop up? ("Save Changes Made").
I tried this:
vb
xlWorkBook.SaveAs(Filename:=excelFileName2, FileFormat:=Excel.XlFileFormat.xlExcel3)
But it renamed the "Sheet1" tab and I got more pop ups from Excel.
I am thinking of creating a code to allows my project to pass through the port forward without the outcoming connection details being pass on the third party software such as packet sniffer.Is it possible to avoid packet sniffer to pick up the outcoming connection details?
View 2 RepliesI am trying to check whether file exists or not. if not create and write something into it.The file is getting created but not updating and getting error message says it is being used by another processCode snippet:
Public shared sub MyXml()
If Not System.IO.File.Exists("configfile.xml") Then
Dim writer As New System.Xml.XmlTextWriter(fullPath.ToString + "configfile.xml", Nothing)
[code].....
Is there any way to avoid UnauthorizedAccessException, i get it every time when I try to do this:
Code:My.Computer.Registry.ClassesRoot.OpenSubKey("Applications").CreateSubKey("Explorer.exe")
Is there any way to make that script read-write?
I have a FileSystemWatcher and whenever a file is changed/created it is uploading the file for me to an FTP. My problem is that it keeps uploading the same file 3 times.
View 5 RepliesBut i've a problem, everytime i hit the button "Save Settings" in my form/application it will re-save the settings to ini file, causing duplicate entries :(
Does anyone knows how can i avoid it to happen?
And, how can i retrieve a setting from the ini file to a textbox or messagebox or something?
(before anyone start saying me to use .xml, i was reading and i prefer the .ini files to what i'm doing)
So I have an application which uses MSSQL server as datasource. Is there anyways I can avoid using any database server and use a local file as datasource ?
View 4 RepliesThe following code writes some data on an xml file. If I want to write on the same file twice the code overwrites the old data with new ones. How do I update the data instead of overwriting them? (i.e., write at the end of the xml file instead of overwriting the data)
Dim XMLobj As Xml.XmlTextWriter
Dim enc As New System.[Text].UnicodeEncoding()
XMLobj = New Xml.XmlTextWriter("C:" & current_scen & ".xml", enc)[code].....
I am having a problem where when I save some text to an XML file it overwrites originally what was in there, I want to be able to add to the file. The file looks like this:
<Incident>
<name></name>
<Department></Department>
<Incident></Incident>
[code].....
I am having some troubles with a project of mine. Its a basic financial manager for windows mobile 5 using VB.net. Everything works fine, however, when a value is saved in xml, it will be overwritten when another is saved. I want it to add these values instead of overwriting them entirely.[code]
View 2 RepliesI am having some troubles with a project of mine. Its a basic financial manager for windows mobile 5 using VB.net. Everything works fine, however, when a value is saved in xml, it will be overwritten when another is saved. I want it to add these values instead of overwriting them entirely.
Private Sub MenuItem3_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MenuItem3.Click
Dim writer As New XmlTextWriter("product.xml", Nothing)
[code].....
I have a database called NurseLocationI have a table called CoverList with two fields UserId and CoveringI can connect to the database fine and read the fields into variables that I can use in my program. w I want to take an existing variable called userFullName and put it into the Covering field where the UserId is = to "LHV"This is my code on button click to do that.But I was told I shouldn't use INSERT because it creates a new field
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
'Declare variables and get username from active directory
[code].....
I have the following which searches the domain and lists out each user. I am writing them to a text file. The problem is each user name as it is found overwrites the other one.
I need them listed one under the other. Have I misplaced the Using statement?
Dim de As New DirectoryEntry()
'Name place to write file to
Dim strFile As String = "C:MyFile.txt"
[Code]......
[code]...
I checked the contents of the array at the end and it only held the last records within the text file, which suggest that it is overwriting the array, how can i prevent this?
I'm trying to edit an existing xls and just overwrite it without a prompt to overwrite. I thought it was something like Excel.DisplayAlerts = False but that's erroring with 'DisplayAlerts' is not a member of excel.
So this is my current closing code that doesn't work.
oBook.SaveAs(ExcelFilename)
Excel.DisplayAlerts = False
oBook.close()
oExcel.Quit()
I currently have two applications. The main app and the updater app. When the main app checks his version with the webservice and it is out of date, it will download a zip archive and then start the updater. The updater will extract the zip archive overwriting the old files of the main app.
Is it possible to do this without the need of a 2nd app, in this case the updater? Can you like, store your application in the computers memory and overwrite the files?
I have a dataGridView and tied it to a button that saves every time you click it. and every time you click it, I want to write a line to a txtfile that displays how many records were changed and the date that they were changed. Everything works fine but every time a save has been made it over write the previous entry on the text file. Here is some of the code.
If changes > 0 Then
MessageBox.Show(changes & " changed rows were stored in the database.") ' changes shows how many entries were changed
swDate.WriteLine(changes & " record changes on " & entryDate) 'entryDate is formated as date with value of "Now"
Else
[code]....
I am getting the right results in the text file except it over writes previous entry's so there is only one entry saved in the text file at any given time. I want it to keep building the text file so every time something is streamWrited the previous things in the text file stay there and it add to it. Looking at my problem I cant really justify or implement a For Each..Next or a Do While..Loop. My vb knowledge is limited so go easy on me.
I made a program which uses sample.dll. The program communicates with this .dll and does various tasks. Now, lets say I developed a new dll (an update, pretty much). Can I just give my users a new copy of the .dll or do I have to re-reference it in my project and then compile my programs all over and then give them a new copy of the entire program?
View 5 RepliesClick-once deployments are suppose to maintain user settings, but on this one application we have the user settings are overwritten to the Visual Studio default every time we publish an update.
View 2 RepliesI have a class that inherits the Textbox class. My main goal is to prevent specific keys from being entered into the textfield. Now, I have a solution however I have one issue with it.
[Code]...
I have this code I use on my form which has worked fine up until now I need to add another form to my project but the text from form 1 gets overwritten when form 2 gets added How can I append my data without overwriting the previous form.
Dim sfd As New SaveFileDialog
sfd.Filter = "Text files (*.txt)|*.txt|All files (*.*)|*.*"
sfd.ShowDialog()
Dim writer As New System.IO.StreamWriter(sfd.FileName)
writer.Write(RichTextBox1.Text
[Code] .....