I want to prevent file opening (temporarily) on certain files. I've tried encryption, which is fine, but a bit slow for my purpose. The actual end product doesn't have to keep some computer hacker type from getting in, just the lay user. I was wondering if it was possible to encrypt only part of a file and reverse this after or what options I had.
View 1 RepliesI've been trying to open a program called 'DET 3' which is designed by the Honduran government and helps us pay taxes for the government. I've been getting this error message when I try to open the program "Component 'Mscomctl.ocx' or one of its dependencies not correctly registered: a file is missing or invalid" I need this program to work so I can pay my taxes before July 10th.
View 8 Repliesi want to create an exe in vb.net by packaging few perl files along with it. when i am packaging those files i am able to hide those files by making the hide option true. but if the 'show hidden files' is selected those files will be visible. I want to lock/prevent the user from opening the perl file/code. want to know if there is any way to do it.
View 1 RepliesI'm using Visual Basic 2008 Express Edition. When I have my personal program open, I don't want another instance of it to open. I would like it to detect if the program is already open and if it is, it won't open another.
View 4 RepliesI have an application that has a tabcontrol to handle multiple documents, just like Notepad++. And I also have file association working correctly with it.All I want to do is to make it open the double-clicked file onto a new "codetab" instead of creating a new instance of the program just to open a file.
View 2 RepliesWhat's the best way to prevent opening of two instances (or more) of the application?
View 6 RepliesI am making a webbrowser,how to prevent my browser from opening new IE windows. Because what happens is, there are some links that will open new windows and therefore IE comes in place because it is set as default windows browser which I really don't want because my browser looks really bad if it opens links in another webbrowser.I want it to be just a basic browser, it has only one window, and it should navigate within that window. This is because the browser is integrated in a bigger application only for some website applications that are related to this main application.I am using VB.net 2008 Express Edition?
View 9 RepliesI have developed an application in VB.NET. It has 20 forms. All 20 can be opened from a menu strip control. The user should be able to open only one form at a time. How might
View 3 RepliesI'm currently working on an application that allows users to select picture files and then categorize them into folders. Now I'm having two issues that are probably simple to fix but I only have a year of experience with vb so I just don't know how to fix them. The first and biggest issue is that once the user has selected and categorized a file, I want the program to select the next file in the folder that the first file was moved from. This way the number of clicks required is minimized. However I have no clue what I would need to do in order to accomplish this. Also, my other problem is that I want to be able to find the indexof a quotation mark but whenever I put it in the parameter it just reads it as a quote.
View 4 RepliesI am writing my own script for a simple calculator that determines if a number is prime, and its prime factors.[code]The loopcount = compare - 2 means I want the loop to be 2 less than the square root of the answer so that when do a descending calculation (loopcount = loopcount - 1) it doesn't see if 1 or 0 is a factor of the answer. for the calculations after that, I want, every time n1 = n2 (a whole number factor of the answer), I want to report those results to a text file (n2 and n3) in this format "(n2, n3)" then go to the next line. and continue to execute the loop until the loopcount is zero. Currently, when I run the code, the application closes when I click the prime button (button that runs this code) and I don't know why. This is my first semester in school, and have never coded before, so I am a definite laymen with code, but I really really want to learn it (hence why for fun im just creating algorithms for different things).
View 2 Repliessmall project .i have the exe inside bill which i will install in another system the bin files is ok it work finei need to make it secure . can u suggest me how to make it suceure so that if someone copy and use in another machine it cannot run and display message. it can be by registry or by dll files
View 3 Repliesso I know how to protect my data know. But how can I create a file that only I can open/delete/move?
View 6 Repliescan FileSystemWatcher prevent the user to delete a file ?
View 3 RepliesI am creating a setup file using features brought by Visual Studio.I have some files which can't be removed from the application's folder. How to put the condition on it? or how to prevent user moves it after installation is done?Those files are critical (eg .dll).I already set the 'Hidden' property to 'true', but I think that is not the correct way :)So I try to find another way to do that.
View 1 RepliesI'm using interop.msxml2.dll to open XML and txt files off an Internet server. The response that is received from the server is stored in my application's variables. I've recently noticed that the application doesn't always update the information when it goes to download a file that it has already downloaded in the past. For example, if it downloaded a file off the server when it started up, then when it attempted to download the new, changed file 5 minutes later, it would still return the same value as the first one. Even after closing the application, it would still return the incorrect, older value. How to stop this "caching" of data, and only allow the program to download the latest file off the server.
View 1 RepliesI have 19 .CSV files that hold engineering data in single and multiple Arrays.I would like to loop through the Directory that contains the files and open each file, fill the array and close the file and continue to the next in Alphabetical order.
This code tells me how many files I have now and will update if I add more.
Dim FolderPath As String = IO.Path.Combine(Application.StartupPath, "DATACSV Files")
Dim TestFolder As New IO.DirectoryInfo(FolderPath)
Dim FileCount As Integer = TestFolder.GetFiles().Count
FileCount give me my number of files but not sure how to continue. I have the code to open and read the file but not how to keep changing the file name for each new file name base on the number of files that exist.
I'm making a flash player and I've been trying to figure this out for months now and have posted several different topics but none of the answers fixed my problem. I already know how to set my program to the default program for flash files on the computer, but I can't actually open files with my program without having my program open and loading it from the open file dialog in my program.
View 10 Replieshow do i open a .exe file from inside the resource by click a button which will open a .exe file in the resource folder, which will work on any pc. The .exe will be like a installer or something. so basicy Click the button it will launch the installer and this will with on any pc?How do i do this?
View 3 RepliesWas Woundering ..... I dont have code to help the question. Id like to open a File Inbuttun Event. Sorry i don't no much on this Topic. It Could be just as Easy as clicking on file exe but.
View 6 RepliesDownload files but without opening browser?
View 3 RepliesI cannot open and read files larger than 32k. This sub is used by both user-dialog and drag-drop operations. Files smaller than 32k are processed without error. Files greater than 32k result in the ErrorOpenFile warning with "Overflow" as the err.Description being displayed.
Public Sub SendFile(ByVal sendFileName As String, terminalWindow As Form)
Const MSG_TITLE = "Send File"
Dim asciiCode As Byte
[code]....
Am writing a simple application which can write a to pdf,doc,xls and access files. so far it can write to word.i also want it to be able to navigate a hard disk and open these files using filters. i was using this code to write to the files
[Code]...
I am writing a program that stores filenames, along with a lot of information about the files in a database. I need to be able to open these files in three different programs from my application. One of these programs, AutoCAD is the default program for the files, but the other two are more difficult. These two need to open the file in a program that is not the default for the file type. Eventually, I'd also like to allow users to point the application to the instance of AutoCAD, MasterWorks, or FeatureCAM that they want to open. I have found articles that explain how to open a file in a default application and articles that tell me how to open any application with a file name, but only 1 suggestion of how to control the program used to open the file. For some reason I cannot get AutoCAD to recognize the file I feed in if I use this method though, so I think it's wrong. This is the method I found that doesn't work:
Start("D:Program Files (x86)AutoCAD 2007acad.exe", file)file is a variable that contains my file name. Since this works fine when I take the program path out, I know the filename is correct, but AutoCAD says it is not.
A simple WebKitBrowser1.Navigate(localfilehere) doesn't work for some reason.
I tried adding "file://" to the URL but that didn't work either.
This seems ridiculous but is this functionality really not present?
I am programming using VB-2005 on a Vista Based machine. I am trying programmatically to open a PDF file that is Password Protected. I have worked out the steps required to open a non-protected PDF. Adobe tells me that it is not possible to pass a password to the PDF using the objects that come with the PDF Control. My question is can this be done in some other way, e.g. with WinExist etc.? Is WinExist and other such commands even available in Visual Basic?
View 10 RepliesHow do I open up the files displayed in the Listbox with an external text app.
I coded this :
Imports System
Imports System.IO
Imports System.Collections
Public Class RinexHeader
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
' Clear the list box and the picture box.
[Code] .....
I've looked through some of the related topics to this newly created thread but none have answered my question. Refer to the following code below:
Imports Microsoft.Office.Interop
Public Class Form1
'declares the following Word and Excel variables as public
[code]....
Is there any means to locate a specific text inside a pdf file?
View 1 RepliesOk hard to explain this one, it may be the codeproject addin i added recently or its a setting i have changed somewhere but when i'm debugging my app opens up many .cs files, kind of interesting but when i want to step through my code it goes into these files and when it errors it has no reference to where the error actually is. sometimes these files being opened have errors on them which i have had to correct for the code to work.
Has anyone seen this before and what could i do to stop it, i wish to confirm that it is this addon before i remove it (which i will do if it is this addon causing this).
First time user on here, basically have been teaching myself VB and I enjoy it quite a bit! Basically I have a program now that has the File Drop-Down Menu with Open and Save options. I want to open and save in a .txt format. The open command will need to place the text in TextBox1 ; and the Save command will need to take the text from TextBox2 and save it as a .txt. I have gotten to the point where it will save it to a specified .txt file, but I would like the user to be able to "browse" the computer for where to open from and save files to.
View 4 Replies