Can't Seem To Add 1 To An Existing File?
Dec 31, 2010
I know how to write and read files but I can't seem to add 1 to an existing file.
This file currently contains "10" but when I click a button I want it to +1 to that number.
I've tried a.WriteLine(+= 1) but it gives me an Expression Expected erorr which I don't get how to fix or what's wrong with it.
If anyone can help me fix or give another code that +1 to the existing numbere.
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Aug 5, 2011
I have a workbook (Workbook1) that runs through some steps using visual basic, which ends up opening another workbook Workbook2). Once Workbook 2 is opened, I need to copy a section of data from it, into Workbook1 int a specific worksheet. I was able to do this by recording a macro, but the challange is, the name of Workbook 1, and Workbook 2, will vary by User. When I created the macro it uses the files as they are currently named. The section of code is below.
[Code]...
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Dec 30, 2009
I'm looking for a code snippet that will add graphics (lines, circles, etc.) to an existing pdf file & write it out as a new file.
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Jan 24, 2012
here i am reading files from one root folder and after reading that we are moving that particular file Success folder and taking a copy of that in to back up folder normal
while reading file i will check file naming convention by targeting backup folder if suppose it was exists in backup folder then i m moving the file to duplicate folder
my problem if suppose again same file came to process this file already existed in duplicate folder how do send the file in to duplicate folder, unfornately i dint have any property as file rename
If File.Exists(Swift_Backup + "" + Path.GetFileName(CBFile)) Then
' File.Move(CBFile, Swift_Duplicate + "\" + Path.GetFileName(CBFile)) 'DUPLICATE FOLDER'
[Code]....
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Nov 24, 2010
I have a csv file that needs to be automatically updated on a daily basis. I am writing a vb.net app to accomplish this. However, Im having issues with the entire process.I need to be able to read in a csv file, manipulate the data and then update the existing file. I have dabbled with using the Excel objects but I need some assistance.
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Dec 30, 2008
When i try to save a file with the same name as the existing file the message box pops up asking me if i want to replace the existing file. When i click yes the program crashes and this message come up An unhandled exception of type 'System.ArgumentException' occurred in system.drawing.dll.[code]
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Nov 11, 2010
I need to make a program in vb that takes a 1 page existing pdf that i specify and inserts that into another existing pdf that i specify.
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Jan 28, 2009
I want to write out to an xml document from a database which I can do but how do I append to it if it already exists?[code]
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Jan 19, 2010
Im creating a login system that allows staff to clock in using a 5 digit code. Staff members can also use the "add an employee" function to add a new employee to the Random File.The problem is, everytime i try to create a new employee and hit the save button, the new record writes over the existing records, one by one, everytime the programme is stopped and started up again.
My Question is: How can i get the new record to be saved, without deleting existing records,
Here is the save buttons click method:FileOpen(fileNumber, "C:employee.dat", OpenMode.Random, OpenAccess.Write) 'open the file with Write Access
myEmployee.name = txtNewName.Text 'adds the name
myEmployee.id = txtNewID.Text 'adds the ID
FilePut(fileNumber, myEmployee, n) 'save to the file
FileClose(fileNumber)
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Aug 14, 2011
Over writing an existing file.
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Apr 21, 2009
This code is working but i have a few problem in sorting of existing file.. example. Output:
[Code]...
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Dec 5, 2011
I have xml file like following for displaying ads using asp:AdRotator in asp
<?xml version="1.0" encoding="utf-8" ?>
<Advertisements>
<Ad>
<ImageUrl>~/xxx/xxx.jpg</ImageUrl>
[code]....
now i want to add new data between ... tag in asp.net using vb how to do that..?
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Feb 10, 2009
i have started a program that reads the names, number and picture location from an xml file and populates text boxes. I now want to be able to update the text boxes and rewrite the xml file and save it to the same location.
Imports System.Xml
Dim H1 As New XmlDocument()
Dim xlist As XmlNodeList = H1.SelectNodes("/itemname")
[code].....
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Jun 16, 2009
I know how to set an attribute and set multiple attributes but how would I add a attribute to the existing attributes...
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Jul 12, 2011
I've got lots of XLSX files and I need to append a new row after the last one in the file. I'm using OpenXML and so far I know how to open/create spreadsheet, but my search for adding new rows to existing files returned nothing.
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Jan 13, 2011
Please see the code below:
Dim objExcel As New Excel.Application
Dim objWorkbook As Excel.Workbook
Dim objSheet As Excel.Worksheet
[code].....
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Feb 11, 2011
I want to create VB.NET code that will change the filename of selected image files that are already stored on my ISP's web server. I know how to do this by reading the image into memory and then saving it as a new file. However, I would prefer not to regenerate the image. I just want to change the filename. Is this possible?
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Apr 6, 2011
I Have an existing pdf file with some editable fields like text boxes and text boxes, where i can enter data manually and save the file,
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Jan 29, 2012
I am trying to import an XML file to an existing datatable created in Visual basic and saved as a dataset and as a mdf file. However I having problems writing code that will allow it to save and recognize what fields to go to from the corresponding xml file.
For instance I want all that start <Artist> to go in the artist field etc....
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Sep 23, 2010
Below is a link to a small zip file with an existing VB (2005 I think) program. [URL] This programs detects if the OS is Locked. I want to make a small edit, and have found the required code for the edit, but I have been unsuccessful at attempting to implement the code. As I said this program only detects windows locks and unlocks. What I want to do, is set it to run an exe when I lock my computer. Doesn't matter what the exe is, just a very basic program.
I however have not been able to find where I need to insert this code. The zip file contains about 6-8 files, I thought I found the if statement where I needed to drop the code but even when I added it to every if that seemed probably I couldn't get any result. what if statement the code I need to add should go into. honestly all I need, I can handle the code past finding that.
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Jun 30, 2011
I want to open an existing VB class file, add a few properties and close it again.
Simple enough, I thought: Take the CodeDom, a VBCodeProvider, parse the code (using the Parse-method), then identify the location where I want my stuff added (doubtless using some nifty LINQ expressions), add a bit of code and then have it generated and here we go.
Now I see that Microsoft apparently added the Parse method only for the fun of it but never implemented it.
What's the story here? Can I only generate code from scratch? Is it not possible to load existing code?
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Nov 3, 2011
I'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?
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Oct 26, 2009
I have a series of .DAT files I need to read into vb.net and then parse the data into a format that can be easily read into an SQL database that already exists. Would I be using a StreamReader object? Or is there a different way to go about this?
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Feb 24, 2010
I made an application with some help here (It's a music player with a button to add .mp3 songs and when I press a song in the listbox it plays. Now I want to add something to it. I added an extra button with 'Scan all .mp3 files' and this has to scan all .mp3 files from the HDD and add it to the listbox.
This is my code I have now whitout 'Scan All .mp3 files'.
Imports System.IO
Public Class Form1
Private Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code]....
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Feb 3, 2011
I want to use my word add in to open an existing file, the code is:
currentDoc = app.Documents.Open(currentFile)
where currentFile is a string containing the path to the file I want to open, when ever this code runs, there are no errors, but I also cannot see the document
edit: the program first closes the 'currentFile', adds something to the package, then tries to open it again with the line above, when it closes the document the word application stays open with no document in it, but when it opens it again it is not seen in the application, but the document is open
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Oct 25, 2009
What is the simplest way to check for an existing file. Every method shown to me in my text and the information gained from the Visual Studio help doesn't seem to work. Each one of them tells me the syntax is wrong. I just want a simple way to check for an existing text file that is in the defualt file location.MSDN told me to use FileSystem.FileExists(file) - VS would not take this and...My text Tony Gaddis (VB 2008) shows:
If File.Exists(FileName) Then
open file...
Else
[code].....
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Jan 11, 2010
my first post so: My smal problem. I am trying to make a very simple download a file program. this is the code i am using
[Code]...
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Mar 31, 2009
I have to write data to an existing text file. I know it is possible to write to an existing file. But, my problem is I don't want to append the new data at the beginning or end of the file. I need to append the new data at the specified line.
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Sep 7, 2009
I want to create a new file from the file that i open using openfile dialog.The name of the file.. that i opend is JR00316-50Mil_WYW.ERR but the name of the file that im going to create is JR00316-TP-LOC.drl.
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Oct 17, 2010
I'm trying to figure out what would be the easier method for what I'm trying to accomplish. What I have is in, on the main form, a datagridview that is bound to an xls file. I then have another form that the user can import/paste data to another dgv. This content then needs to be appended to the end of the main form's dgv. Would it be easier to add it straight to the dgv and then save it to the excel file or save it to the excel file and reload the dgv? Or does it matter? I'm not exactly sure how to do either method but I figured I would start here.
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