I have a little problem with finding a file I stored in an isolated storage on my pc harddisk.The application stores a Hashtable ( Called example ) in an isolated storage like this:[code]
View 1 RepliesI was reading an article about isolated storage and thought of doing the following.Encrypt files.Add them to Zip.Unzip the file,decrypt the content and copy all the files and folders into an isolated storage and then load a specific file into a web browser and launch lets say an HTML page I got stuck on the Isolated Storage thingy
here is a part of my code
'So far i unzipped the content of the Zip file
'Setup file streams to handle input and output.
fsInput = New System.IO.FileStream(strInputFile, FileMode.Open, _
[code]....
Encrypt files.Add them to Zip.Unzip the file,decrypt the content and copy all the files and folders into an isolated storage and then load a specific file into a web browser and launch lets say an HTML page)
The Windows Application we are coding uses an XML to store connection settings etc. The application also needs to update automatically online. The problem is that the config file is replaced when the application is updated and the user has to set up the application again (definetly not ideal!).I placed the XML file into isolated storage, no problems doing that. But still when the application is updated the isolated files get replaced/removed and the user has to reset their settings..
View 1 RepliesI'm restricted to .Net 3.5 so I can't use isolatedstorage.getfilenames() as in .NET 4. What I have below isn't working yet. I do get to the messageBox included in the code below but I can't find the file "IST_Log.txt" anywhere on Windows XP where I ran the program. I saw the messagebox appear 3 times meaning AppendLog was being called. What do I need to do to write this file on either XP or Windows 7?
Public Sub appendLog(ByVal message As [String])
' Get the isolated store for this assembly
Dim isf As IsolatedStorageFile = IsolatedStorageFile.GetUserStoreForAssembly()
Dim format As String = "MM/dd/yyyy HH:mm:ss.fff"
Dim isfs1 As IsolatedStorageFileStream
[Code] .....
We are building application that stores objects to isolated storage using .NET runtime serialization. Problems occur when we update application by adding some new properties to the classes of objects we are serializing. So we want to do some kind of versioning of the objects in isolated storage so we can check if they are obsolete before they are deserialized.
View 4 RepliesDim ListOfFileTypes() As String
Private Sub ListFiles()
' an array to hold the file types I am searching for
[Code]....
I am using a MySQL Server on the net and a Windows Forms client program, which connects to this server.
I want to use SSL and have prepared everything, that this can be used. My primary question now is as follows:Where / how to store the files for the SSL certificate as best way? As embedded resource? as external file? As part of the My.Settings environment?
I am looking for some API or OCX or any other method to copy the existing file from Hard disk to the USB storage device.for that i would have to perform the following checks :
1> Check for the plugged in USB devices.
2> Find out for the available space(2GB) on each.
3> Prompting a message to user on which drive he would like to write that movie file.(As At a time i want to give only 1 disk write only.
4> after selecting the Drive, and pressing OK, i just want to copy the selected file from HDD to that Device.
Now For achieving this , i just need a reference of any Available API or OCX or any other method available in VB.net?
how to read files from an USB mass storage device. I have found plenty of posts regarding drive letter detecting and reading the files. It's OK, but what about a device, where no drive letter is assigned - e.g. my mobile phone is visible under "My Computer" as "Mobile Device". The same situation it with my MP3 player. It's visible under "My Computer" as "Sansa device". Please, could anybody help me? I need to enumerate USB devices, identify, which ones have a file system and finally, I need to read/write a file to the file system.
View 2 RepliesNeed to design a program that can encrypt and decrypt messages stored in simple text files using a private key stored in a separate file. Software should also be able to allow the users to enter simple messages that either displays the encrypted or decrypted message. The encryption method should use a simple substitution method. It should be set out in the following format:
Example (the "@" is the separator):
@
The character The Code End of line
A @ 4gh EOL
B @ 84!9 EOL
Has to use the 256 ASCII character codes. The separator will be used to separate the character and its corresponding code.Here are the pseudocodes I have come up with:
� Read any private key file
separator = readline(file);
while not EOF(file) do
tempStr = readline(file);
[code].....
im looking for code to copy the files from the floppy drive to a removable drive on the computer.For example:
Copy A:contents to Z:contents
I have a system that detects USB mass storage devices. I have a "list of items" listbox (ListBox3) and a list of USB's (Listbox4) When Button4 is pressed it will transfer all files in listbox3 onto the mass storage device selected in listbox4
View 29 RepliesI'm just getting started with Visual Studio (2005), and my aim is to write a fairly simple application in Visual Basic that will need to store some data to disk.What I really want is to be able to send the application to the end users (xp, vista, win7) and have them just be able to use it without having down download all kinds of extras. For example I'm guessing that if I use an SQL database in my application they will need to download SQl server express or some other sql downloadable?
If so is there a similar downloadable for MS Access?I'm just in the 'seeing how things work' stage at the moment and I don't want to waste time going down the SQL track just to find it won't actually work unless my users all download SQL to their machines (which they won't want to do).
Looking for an idea of where the best place to keep files for a program. I use them frequently and they interact with the program directly. I want to place them in a place where they won't be easy to find if someone is just cruising thru the directories. Any ideas?
View 7 RepliesI want to get the hardwired serial number from the hard disk but NOT using WMI. I tried using WMI code, and it doesn't work on my machine for sure. So is there any alternative in .NET for finding the Serial Number of a physical hard disk?
View 8 RepliesTHis code below retrived Hdd SerialNumber.it works both on windows Xp and windows 7.But does not work on Windows 2003 Server SP2.
[Code]...
i have created a simple form which takes some input from the user. Now, I want that the input should be saved to my harddisk and can be seen later as well. Can you please tell me how to save the inputs as a record on my harddisk.
I mean the first time the form appears, it has four options. All the four options will be a record. The next time the form is re-loaded, then the same four fields will have data for someother client. It should be saved as another user.
I put "isolated context" in quotes because I don't know what else you would call it. Basically, in C#, you can do this:
{ int i = 0; }
{ int i = 1; }
The curly braces create an isolated context which allows you to declare two variables with the same name in the same method or property logic. Is this possible in VB.NET? Also, what do you call this aside from an isolated context?
We are trying to retrieve PDF files stored in a SQL Database. We want to display them on a web page. We are using VB and ASP Code within Visual Studio 2008. We have found snippets of code, but because we are new it does not make sense to us. We are looking for infomation on how to retrieve the PDF from the database and either display directly to a web page, or write the information to a Temporary PDF file we can delete later.
View 1 RepliesI am new to visual basics. I have loads of text files stored in a folder. I only want to chart some of the columns in the text files. How do I use visual basics to charts the data?
View 4 RepliesI need to ASP.net Page that links automatically to files(pdf) stored in a folder in the same root of the web application..so the script will read the contents of the page , if the file is available in the folder it should create a link to it automatically and if not it stays static text.
View 1 RepliesHow can I get the output data of sql procedure from SQL Server to my asp.net[vb.net] page dropdown list?<asp:DropDownList ID="DdLocation"></asp:DropDownList>
View 1 RepliesI would like to find all the "About" files of all programs stored on my hard drive. If you open a program, click on help and select "About". It provides the name, version and date written etc. I would like to extract and store in DB. The store in DB part, I have no issues.
View 1 RepliesI have a voice program that can compare voices to stored voice files and identify people based on that. It's not the most accurate thing, since being sick or other weird things can make it fail, but it does work for the most part. I was wondering if there was a way to keep the voice recognition running during an unlock and wait for the person who locked it to come back. Upon giving the command and voice verification, if it passes, the computer is unlocked by my program. Is there anyway to do this in VB.NET?Summary: Can a program unlock a computer after it's locked?
View 4 RepliesI have a program where a lot of the required information for it is stored in text files. I simply read this information into large arrays. However, I don't think it's necessary to load all the information each time. Rather, it would be more efficient if I could simply search through a list of items to find the one I need and then use the data from it, or to find a similar name and use it elsewhere.
Would I be right in using a database? And is database programming done in SQL? I have a book on it telling me to use the SQL Server (IIRC), so I shouldn't be doing it in the VB.NET Express GUI?
Here's an example of what I would do:
Hex = 03 00 => dex number 003
Search in file Pokemon Dex Numbers
003 returns Bulbasaur
Check Bulbasaur base stats in the base stats file
etc
So basically I'm reusing a lot of information. I think a database would be best and it would all be internal right? I'm getting complaints about access denied to a text file (since it's stored in the program directory in the program files).
So to cap up the few questions I have:
-Databases are done in SQL and not inside the GUI?
-Databases would load internally?
-I could search a database without having to load it into like an array or something?
I've been asked to get the page counts for documents stored as tif files. What I have now is looping through our third party software to open them and then get the page count. I can't stop the image from flashing and it is very slow. Does anyone know of a way to loop through them quickly and can the page counts (one image can have many documents)?
View 5 RepliesI need some input how to storage some information.The information I wish to store is a list (1-300) that contains the following:
-Raw material (string)
-An array of Value (double or long)
-An array of Date (string preferably)
My first approach to this was looking at the structure statement but I couldnt figure how to use the array within the structure statement.
Almost every one hour, when I run the project
View 12 RepliesI have been trying to do this for about a month now (hard to get answer quick because of school), but i need to decrypt a file into memory. I know you have to "write all bytes to memory" but i have two problems with that, 1. I have never touched on that itself and don't know how to write the bytes of an executable to memory, 2. I still wouldn't know how to decrypt it in memory. Right now my code is:
ElseIf entype = "rc4" Then
If File.Exists(thepath & exerandname) Then
Kill(thepath & exerandname)
[code]....
it checks if the file exist then deletes it, then it opens the file and decrypts (_4reversecr.enc) the file(Cutter(1)) with the key (key)?
I'm making an installer that needs to have information stored inside the exe itself.I cannot use my.settings because it is stored outside the application and if it is changed and the exe is moved to another computer it will reset to default.
And I cannot use resources since I cannot add/edit resources after the application is build.
Is there any way I can store and change info even if the application is moved to another location?