I have the following code to open an Intel format hex file. The file is like this
:020000040000FA
:1000000000000000000000000000000000000000F0
:1000100000000000000000000000000000000000E0
:1000200000000000000000000000000000000000D0
[code]....
After I started running my code, I was told "Error opening file". Can anybody tell me what's wrong? Also how to retrieve each byte on each line to array HexValue?
I want my program to be able to create a '.txt' file when it is run for the first time, with the date and time the program was accessed, and to be able to add new 'logs' of program history every time it is accessed. What i mean is that i want my program to be able to create a '.txt' file, and then fill in the dates and times when the program is opened.
View 7 RepliesHow would I make it so that my programs Title is like"Text File Name"-"Program Name"Also, how would I make it so that text files can be opened with my program?I can open a text file within the program but I cant do
View 2 Repliesi have an application that used for entering some modification on images but what i want is that when somebody open any image using right click then "open with" and choose my application program then the image translated to the picturebox in my program so i need to know the code of the image path?
View 3 RepliesI am trying to get the file path that opened my application. So if I opened my application by making the text file open with my application, how could I get the file path of that text file? Lets put it this way, you have a text file. Ex: MyFile.txt, so when you click that it opens in NotePad and loads the text in MyFile.txt. How can I do that but just get the file path?
View 6 RepliesIs there a better way of finding the path of a file that was opened with the open file dialogue? This is what I did. It works, but it seems like there should be a way to get the path through one of the open dialogue options.
Code:
'm_PicSource = OpenFileDialog1.FileName
'm_PicSource is a global var
Dim strCnt As Integer = m_PicSource.Length - 1
[Code].....
So I open files and do whatever with them right. I've set the initial directory to equal the last directory, but whenever I open multiple files, it never sets the directories properly. It acts as though nothing was opened there, so it takes the previous directory as the last one. Thoughts on what's not working? Here's the code.
Code:
With FileOpenDialog1
.InitialDirectory = LastDirectory
If .ShowDialog = DialogResult.OK Then
[code]....
I have multiselect enabled earlier and everything else works but this. When you open a single file, the last directory works fine. It only happens with multiselect.On another note, does anyone know why it freezes when I try to do a lot of files and use another program? I opened 700+ files to see what would happen. When I switched to a IM convo, it froze. When I left it to run, it worked.
I can't connect to my database now, although yesterday it was perfectly fine. An error message comes up saying "...A database with the same name exists, or specified file cannot be opened, or it is located on UNC share" this has never happened before. Why can't I access my database?
View 2 RepliesI have created a windows application which creates a database file and saves it to disk, it uses a custom file extension so that when the file is clicked it opens the application. In order for the application to use the data in the file it needs to rename the file so that it has a .mdb extension. My problem is that I cannot see how to get the name of the file which opens the application.
View 2 RepliesI'm exporting my Dataset to an excel file, and I want to make sure I keep any file errors under control. One in particular that I'm concerned about is accessing a file that's already open. A general IOException occurs that says:
"The process cannot access the file 'C:Reports eport300.csv' because it is being used by another process."
Here is the line in which the error will occur:
Dim output As New IO.StreamWriter(path, False, UnicodeEncoding.Default)
I guess I could just throw a try catch around it, but what if an IOException happens that isnt related to this particular incident? Is there a way I can check to see if the file is already open before allowing this code to run? Especially when I'm using excel.
I made a quick search program so when I browse for a text file, it adds that text file to a listbox1. And then when you search result will be placed in listbox2 Now I'm wondering how to force the program to automaticly load last opened text file on startup.I tried with this and then I stuck.
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim reader As IO.StreamReader = _
New IO.StreamReader(winDir & "system.ini")
[code].....
How can I upload an image 1.png into the program and then once the program is opened, that image gets saved here:LibrariesDocumentsand if there is already a file called 1.png in that directory.
View 5 RepliesI have a couple of files which I have to update periodically through a process written in VB.net . These files are on a server and part of a domain that many users can access. These files should never be written to as they are for reference only. I need to be able to overwrite some of them even if a user has them opened. Is it possible to do this? Presently the files permissions are not set as read-only but I can do this as long as the user under which the process runs will still have permission to overwrite them.
UPDATE: thx for your responses. The files are pdf and are opened by clicking on them from windows file explorer. This also happens when a user simply has the file selected in windows explorer.
I tired this code to check if the Excel File is already open but didn't succeed
vb
Dim exl As New Excel.Application
If exl.Workbooks.Open("C: a1.xlsx") Then MsgBox("Yes")
Can anyone point me in the right direction to where I can find information on how to make my own file type that can only be opened with my vb.net program that I'm am making? The file just needs to hold text.
View 10 RepliesI have the following line of code used to input the name of a text file to be opened and during development this was working without a problem. However when I create an executable this is not working and I was hoping someone would be able to give me a tip on resolving this matter.
Dim fileName As String = Application.StartupPath & "" & TextBox1.Text
I've created an application that saves files with an extension of "*.pbca". When i click the saved file in Windows Explorer, it opens my application, as it should, but i now need the code that finds the file path of this file once my application has loaded.[code]...
View 14 RepliesI want to monitor for when a file is opened(movies that I open with a media player) and raise an event when that happens. I figure i've got 2 options: the first is monitoring the filesystem for a change in 'last accessed' property of the file- not good, since it doesn't change immediately. And second,monitor for when a process of the player is launched, and get the info from the titlebar. How can I do that ?
View 3 RepliesMy program opens 4 excel spreadsheets updating info. I update one at a time and then close it before opening the next one.I want to add code to my program to test if the file is already open, before trying to open it. Occasionally someone will have one of the files opened and it causes a crash. If I test to ensure it is not open, then I can avoid this.
View 7 RepliesI am trying to write text to a file in this path "C:\Test\test.txt" and when I want to save image filenames to this path I need to check if the file is opened and if it is opened I need to close the ".txt" file and write the text to the text file.[code]...
View 5 RepliesI'm working through an example in a programming book and stumbling across a problem that I can't seem to figure out. The program in question is basically a very basic 'level viewer' for a tile based bitmap game (its a game creation book). The source code from the author was written for Visual Studio 2005, and I am using 2010. The source code imports fine and the program runs correctly.
I built the same program on my own, starting from scratch in VS2010. The program works like this: It opens a tile set palette (bitmap form), then uses an XML file to create a 'level'. The XML file indicates which tile goes where on the 'level'. The XML file is roughly 1.9MB and has roughly16,000 entries (the program creates a level that is 4096 x 4096 pixels using 32 x 32 pixel tiles).
Running and closing the program from source code runs exactly as expected. Running the program from my version runs exactly as expected. Closing it does not. It basically hangs up for about 2 minutes on close. (for reference every loads in about 3 seconds). I've determined that it is the XML file that is causing the problem by excluding the portion where it loads the XML. In that case it closes fine. If I cut it down to just a few records, my program closes fine as well. So it seems like the program is having trouble dumping the XML document at close.
I've tried to track down any differences between the source code and my code, and the only thing that I have found is that the References in mine are all using .NET version 4.0 and the references in the source are using mostly 2.0 and some 3.5 (System.Data.DataSetExtensions, System.XML.Ling.dll, and System.Core.dll)
The code for the entire form is:
Imports System.Xml
Public Class Form1
Public Structure tilemapStruct
[Code].....
I'm trying to convert a path/file to a url to be opened in webbrowser1.[code]
View 2 Repliesi made a program that is associated with the .map file type. What I need to do is find out the path of the .map file that opened the application(including the file name for the .map file).
View 13 RepliesDo you mean, "opens a file" or "is opened with a file"?
View 1 RepliesHow can i make a VB app read a .DAT file as if i opened it in notepad.
View 13 RepliesHTML
System.Diagnostics.Process.Start("C:up.exe")
i opened a file using this command . after a sec i want to close it automatically can i do it using visualbasic?
[URL] to create my sqlite db file. I created it as a sqlite db version 3 file. When I go to open the connection
[Code]...
i use a windows application for data entry purpose. Data for the application is got from the PDF file which is viewed using alt+tab and when i move from the pdf file to application i need the page number of the PDF file when it was in last focus to be pasted in a text box in the application automatically.
View 2 RepliesI found somethings and modified a bit the code so its can fit with what i needed.
I got it to work. Its read the text file but not i would like it to read.
In the ListBox, the text show up in 1 line as it should show in multi-line... (Yes, in the .txt file the text is in separated line.)[code]...
The projects program is designed to open files output by another program, allow the user to edit the files content, then send the file to a specific bookmark within a word template. Unfortunately most of the output files by the 'other program' are html format.Question Is there a way to strip out HTML from the file when it has opened in my text area within the program? I found one or two online guides but haven't managed to get them working.
View 4 Replies