Below is my code for DELETE button. What i want is if the user select the transaction from the listview and press the DELETE button it must be able to delete the transaction from listview and text file(temporary log file) which i keep all the transaction record. At the same time the list view must able show the total current balance from the deleted trnsaction.
[Code]...
I've got some temporary files I've created in a folder suffixed with -tdf (stands for to delete file), I'm deleting this file later, but when I check the folder it exists in, it's still there. The code is pretty much this:
[Code]...
i want to delete an item on a listview, this is my code
If ListView1.SelectedItems.Count > 0 AndAlso MessageBox.Show("Do you want to delete this item?", "Confirm", MessageBoxButtons.YesNo) = Windows.Forms.DialogResult.Yes Then 'make sure there is a selected item to delete
ListView1.SelectedItems(0).Remove()
End If
now my problem is i want to delete that item on the text file line
( using streamreader and streamwriter)
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].....
i am very new to VB. I am working on file operation such as show files, copy file, delete file, show current directory, rename folder, make folder. My problem right now is with delete and copy file. I have a method of delete and copy but i dont know how to pass this method on a button.
[Code]...
I am trying to code a delete button for a browsing program based on data from a txt file. I have coded the buttons to sort(ascending and descending), append to the text file, search the text file, but I can not seem to get the delete function working. I am using VB 2010, this is what I have so far:
Code:
Dim deleline As String
Dim line As String
Dim isFound As Boolean = False
sr4 = IO.File.OpenText("Students.txt")
[code]....
i am using visual studio 2005 and database sql server 2000. i want to read table of database and readed data insert in temporary table again update that inserted record.
View 3 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 file removal which revieve directory files to delete from a text file..[code]
View 2 RepliesI'm trying to find out if it is possible to something and really need your help.
What i want to be able to do is have a RichTextBox on my form that i can enter my description into, then when i have finished i want to be able to save it to a memory stream as a .html file.
I then want to be able to read the source of the HTML file to amend the format of the description and then display it in a webpage?
I have a project where you type something then it looks through a text file for what you typed. I would then like to make a way to edit the text file once I find what I'm looking for. So, how do you delete text from a .txt file that you are searching through? Also, how do you re-write in that place you just deleted the text from?
View 3 RepliesHow can I avoid a first chance exception here. I need to use the cancel button to jump around the remove at code. The exception is caught and the bail out goto works, it is just the first chance I'd like to get rid of.
[Code]...
in windows form in button click event how to export the file in a location select by showdialog & it will be delete permanently at a same time.How can i do this!
because in .net it will produces error "IO Exception was unhandled" or "The process can not access the file because it is used by anather process." .In button click event how to export the file & delete at same time in vb.net windows application.
n windows form in button click event how to export the file in a location select byshowdialog & it will be delete permanently at a same time.How can i do this! because in .net it will produces error "IO Exception was unhandled" or "The process can not access the file because it is used by anather process." .In button click event how to export the file & delete at same time in vb.net windows application.
View 3 RepliesI just need to know how to create a temporary file for each line of a file when it is selected in a listbox, so that i can split it and assign each part to textboxes.
1) create temporary file from variable for each line of a current file (each line represents a contact, and temporary file's name is the contact's fullname(variable as string))
2) listbox SelectedIndexChange = search fullname.dat (temporary file)
3) split the content of the fullname.dat file and assign each part to display in textboxes the only thing i got a problem with is creating the temporary file.
How knows how to create a temporary data file in vb.net without using sqlserver.
View 2 RepliesI have a VB program that creates a temporay PDF file then opens Outlook and attaches the file. I create the file in hte application path (the location that the program is running from - normally C:Program FilesProgamName This works fine in XP as it appears there are no crazy permission issues. However in Wondows 7, the file does not appear. There are no errors, the file does not exist in that location.
I've changed the path to the root of C:, however this doesn't work either. I suspect it's something to do with W7 virtualisation, so the question is where can I create a file that I can then access again?
I was trying to avoid creating it on a share on a server, but it's looking like this is the only place to put it as there doesn't seem to be many places a user can write files to in Windows 7.
Surely there must be a location that users can access (without being administrators) to create files. Don't even get me started on the fun I have had with the registry in W7!
I'm currently making a button which when clicked opens a file dialogue box in which the user then selects the file they want, when the file is selected the file name should appear in a text box next to the button. (Much like when browsing for a file to attach to an email) I've created the dialogue box but can only set it to show the file name in a message box when selected.
View 2 RepliesIn my application,I have some reports which needs to be viewed frequently.After viewing the reports many times by different users, it shows load error.For different systems, many temporary files are created.i need to delete those files in my single system.now i manually deleting all the temporary files in the temp directory and configure the IIS again.then the report loads properly.But we need to delete these temporary files frequently which makes our life dreadful.Only the report files needs to be deleted.How can i delete these temporary files automatically using code? I have used the following code for this.but some files cant be deleted as those files are in use.Do those temporary files in other system can cause load error in our system?
dim temp as string=Environment.GetEnvironmentVariable("TEMP")
dim k as sting()=System.IO.Directory.GetFiles(temp)
dim i as integer[code].....
in windows form in button click event how to export the file in a location select by showdialog & it will be delete permanently at a same time.How can i do this! because in .net it will produces error "IO Exception was unhandled" or "The process can not access the file because it is used by anather process." .In button click event how to export the file & delete at same time in vb.net windows application.
View 1 RepliesI have a problem with the temporary internet files. I know how to locate the folder and all the rest, but I'm going to see what second c 'is in the folder with Explorer I see dozens of files, but when I go to see through code, I see only two files, index.dat and desktop.ini. I thought that the index.dat file is a kind of file that contains the files that I see through explorer, but it seems too light, and still do not know how to copy the files it contains.
View 2 RepliesI have a program where by I want to copy a temporary (in coming file from an email attachement) and I want to paste this onto my form (listview control perhaps??)
How can I paste this on there so when I click a button I end up saving this file into a selected loction.
I've google search this with no luck.
I have a text file containing lines of data (File 1). I need to delete all the lines in another text file (File 2), which are found in file 1.So I could read file 2 line by line. And then once the line has been read, read file 1 line by line to search for a match. But that's going to be painfully slow.Or I could read file 2 into memory. And then read file 1 line by line and REPLACE the lines in file 2 with nothing, therefore deleting them. File 2 could be 100 mb, so I'm not sure about reading it all into memory.
View 16 RepliesI am trying to delete the last line of a text file, then append new text to the end - The problem I have is that the code I have is set up to search for an Index, not a String, or the EOF line - I tried to modify it to search for the end string in the file, but that didn't work, either - Here's what I have:
'Delete last line
Dim lines As New List(Of String)(IO.File.ReadAllLines(LocalAppData & "settings.txt"))
'Remove the line to delete, e.g.
[code].....
I want to know how to delete last text line of text file..Most that I found in the internet is delete last line of text file which is blank line in the text file. I want to delete last text in the text file. Here is my code, but this code is use to delete specific text in text file. How to modify this code?[code...]
View 12 RepliesTrying to write to a text file using GetAsyncKeyState in user32, the only issue that I am having is when I press the backspace I get the ansi code character, but this is not what I want. I want it to really backspace, I know its doing this since that is how I coded it.
Here is my code
For BKey = 8 To 8 'THIS SETS THE BACKSPACE
CountKeys = 0 ' Seting the key code back to 0
CountKeys = GetAsyncKeyState(BKey)
If CountKeys = -32767 Then
[Code]...
I have a txt file that I need to read into a listview, but I need to read from a specific line in that file. Below is a sample of the txt file to read,
6400,3200,2,95.5,84,76.6,0
1,2,-20,15,0,0,0,"NO",0,0
TOTAL GPM= 6400 HWT= 95.5 CWT= 84.0 IWBT= 76.6 ALTITUDE= 0
CODE]...
I try to delete my Temporary Internet Files and I do it by using the command "kill()", but I get an error:"No files found matching".What is the problem?
View 14 RepliesI try to delete my Temporary Internet Files and I do it by using the command "kill()", but I get an error: "No files found matching".
View 6 RepliesI have a gridview that contains value of every rows read from a text file. What I want to do is, edit and delete the selected row on the gridview. I already have the code to show every row on the textfile:
[code]...
What I am going to ask is, how do I get the index of selected row return and fill the value to the textbox then update it to the textfile?