i want to create a system update..When the user clicks on this button will check if a newer version If so, it will ask if it OK to download and approve it will download the file and open it right when the download is complete?
View 10 Repliesi try to make a program that can share a database to other people using a upload/update system but when i try to download/upload it keeps saying mdf file in use how can i make the code so that it Uploads and overwites the file without that error.as it must be so it must upload to my server (build in)and download (also build in)the error gives file in use constandly how can i fix this issue?of that file in use problem. even when these no querry or other code running?
View 9 RepliesI am looking to create a menu system in vb 2010 windows app. See attached file to give you an idea of what I want to achieve. I could do it by creating 4 buttons and have 4 panels. when button one is pressed make panel one visible and hide other 3 panels, etc This just seems messy. Will any of the built in VB menu components do this?
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I need some trick to make some good and safe "Login" to application system with username and password.
i would like to auto check for new version system update when the system is closing. When there is the new version system update, will automatically rename the active exe to FileName.old then copy new version of exe into the folder.
View 1 RepliesI have had several occasions recently to access a specific class several times over a relatively small time frame.So I've been storing the value of the class in Session and trying to access it on page load, if it's not available creating a new instance and storing that in session.
So instead of constantly replicating the same code for different classes on different pages I'm trying to create an extension method to do this for me.
[Code]...
I'm stuck on what to do when I make my new instance of my class (it would have to have a New() sub)
I'm not sure where to go from here... or even if this is the best way to do it.
i want to save a jpeg file from one system to another system which is connected through network.its in a windows application.my target system's name is "abc".how can i do this ?
View 2 RepliesSince i update my program a lot i want to implement a update system into it And im new to programming, so i would prefer it to be a very simple system.. What i want it to do is, when a user presses a update button it should check on a specific ftp server if the file version is newer than the one the user is having. If it is then it should just download it from the ftp server and then replace the original exe ..
View 7 RepliesI want to check for a system update every .25 seconds. It's very important that it is always .25 seconds apart. I was trying to use do until/while...loop, but it wouldn't let me insert a delay. Does anybody know how to do this/where I could learn to do this?
View 5 Repliesam i just stupid or do they have a ____ up system?the "publishing folder" is set to my ftp server.. and the upload works.. so thats Done.the installation folder is set to "Whata ____ is this?!" and i dont know if it works or not..it is supposed to update when the application starts.. it does not. and that does problobly have something to do whit the installation url to do..so how do i make it update automatically?
View 3 Repliesi have been looking for a code to change date time in kernel32, which is I will get a date time from server and update current PC date and time based on server date and time.
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I have a program that I have gotten as far as programming it to inform the user of updates, have them push a button to download it. The updated version of the exe will be downloaded into a subfolder called "Updates", where there is a program called "Updater.exe"This program is one form, with a progress bar and informs the user the program is being updated. Every time I run through it step by step it appears to work, but in a real environment the program stalls out. It doesn't crash, but the bar continues to move with no action being taken. I can not help but wonder what on earth must be going on in the code, which you can see is quite sloppy and rather unweildy:[code]And there is of course the issue of not being able to change data on the hard drive without administrator privileges as is being discussed here: url... When I finally get a manifest working for this program to require administrator access....how could that screw up this updating process...How can I better perform this, what seems to me, simple process of deleting the old file and replacing it with the update?
View 8 RepliesI have an application i built that works fine, the issue is when i try to update it using the updateVB.dll it detects the update but once clicked it pops up with: A first chance exception of type 'System.IO. FileNotFoundException' occurred in mscorlib.dll and doesn't complete the download. I am using Visual studio 2010 Ultimate, my code for the update is: [Code]
View 1 RepliesHow to update a file for a stock control system in vb 2008
View 2 RepliesI was just thinking what is the best way to make daily update system? I have a perfectly work system that checks for updates and downloads the latest files and all that. But one problem the user has to click check for updates button first. I think the real question is how can i add 3 hours to let say 10:00. I also think using the 24 hour system would probably be easier.
View 3 RepliesI am having some issues with a parameterized SQL Lite query. I can't seem to get the SQL Lite Parameter to accept the String value
Using cmd As SQLiteCommand = pConn.CreateCommand()
If tblLang = "en" Then
cmd.CommandText = "UPDATE [AT_Strings] SET [Data] = @tblData + 1 WHERE [RecordID] = @ID AND [language] = @tblLang1"
Dim tblData As New SQLiteParameter("@tblData")
[code]....
The error is as follows....Unable to cast object of type 'System.String' to type 'System.Data.SQLite.SQLiteParameter'.Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.InvalidCastException: Unable to cast object of type 'System.String' to type 'System.Data.SQLite.SQLiteParameter'.
Source Error:
Line 283: Dim ID As New SQLiteParameter("@ID")
Line 284: Dim tblLang1 As New SQLiteParameter("@tblLang1")
ERROR on Line 285...
Line 285: cmd.Parameters.Add(dataText)
I have a little vb.net script that will copy a file, set its attributes to Normal, update the file time, and then set back the attributes to match those of the source file.
If IO.File.Exists(Destination) Then IO.File.SetAttributes(Destination, IO.FileAttributes.Normal)
IO.File.Copy(Source, Destination, True)
IO.File.SetAttributes(Destination, IO.FileAttributes.Normal)
[code]....
I however I'm encountering a quite strange problem. On some configurations, IO.File.SetLastWriteTimeUtc triggers an UnauthorizedAccess error, although the IO.File.Copy instruction worked very well.
I doing some maintenance work on a vb .net web app and receive a system.formatexception input string was not in a correct format error after I update a row from a GridView control. The database update returns fine and I've stepped through the code and it never throws an error but when execution finishes and returns to the browser I get the following. I turned on the feature to break when an exception occurs but it never does break. Any suggestions? [Code]
View 2 RepliesMy project worked a first and now its giving me a problem.The error
Quote:
Unable to cast object of type 'System.Windows.Forms.MouseEventArgs' to type 'System.ComponentModel.RunWorkerCompletedEventArgs'.
I've spent a substantial amount of time trying to figure this out, but I keep getting the same error
A first chance exception of type 'System.Data.OleDb.OleDbException' occurred in System.Data.dll
A first chance exception of type 'System.NullReferenceException' occurred in project1.exe
This happens when I try to use the DataReader.my code is
Public Function Identification() As List(Of Integer)
Dim returnIndex As New List(Of Integer)
Dim dbCount As String = "SELECT Bookingid FROM bookdetail WHERE Date =" & getCurrentTimeString() & " 12:00:00 a.m."
Dim count As Integer = 0
[code]....
The usual VB way to handle a computationally heavy task is to put it in a background worker thread, while the main thread keeps handling the UI.Say for whatever reason I needed to do this the other way around: the main thread doing the grunt work and the background one updating the UI.Here's what I have so far. The only problem is, while the UI window (Form1) does get redrawn, you can't interact with it, not even move or resize it (the mouse cursor turns to hourglass and won't click).
Public Class ProgressDisplay
Private trd As Thread
Public Sub New()
trd = New Thread(AddressOf threadtask)
[code]....
The client will call it like this (actually in unmanaged c++ over COM but you get the picture):
Dim prog = new ProgressDisplay()
DoLotsOfWork(addressof prog.update) ' DoLotsOfWork method takes a callback argument to keep client informed of progress
How do i create an update file for my existing application.
for example : i made an application that have 2 or 3 function which is lock or disable. when people want to unclock the function, they have to install or run updater application (in EXE). so how do i create this UPDATER application for unlock the function?.
I would like to implement update to my applications but not in the automated fashion. I would like the user to check for update, through version control in my database, and if there is a newer version, it will automatically shutdown the user's application and run the update (copy and replace files in the users application folder). After the update, it would restart the application for use. I was thinking in creating a .msi for creating and replacing files, still don't know how to create it! My main concern is to be able to implement a proven and correct .Net method for Updating applications. A best practice for deploying and executing updates to my applications.
View 8 RepliesSyntax error (missing operator) in query expression '''system time'''.this is the error that appears
this is my code:
Dim sqlCmd As String
Dim x As Date
x = Format(Now(), "General Date")
[code].....
the fields in the tables are all text fields.is there any way to fix this error? perhaps it is in my query but i really cant find a solution.is there an alternative to get what i want my program to do?it is basically entering an ID number and finding the record with the same idnumber and putting the system time on the timein field for that record.
My Text Folder is "C: ext"If I m Past Any Text file in This Folder Then My ComboBox Update its Name I want only textfileDont Scared With My Silly Example.?
View 2 RepliesI've tried to create an update button for my datagrid, however it doesn't seem to want to update, whatever I try. Here's my
[Code]...
I Created the setup for my vb.Net appliaction and installed it on the client systems. The application uses MS Access as the database. So i manually added the file to Setup project under its application directory.
View 2 RepliesI am trying to create a update application for Windows CE.
It will go out on the net to my site and see if there is any new updates but I am having a problem doing that.
Firstly it is working fine if I create it using a 'Windows Application' but as soon as I Copy + Paste the code to my 'Windows CE' app (smart device, windows CE) it comes up with an error.
I am using .net framework 2.0.0 and vb.net 2008
Here is the code which I am using:
Code:
Function DownloadFile(ByVal sURL As String, ByVal pProgress As ProgressBar, ByVal Filename As String, ByVal Prefix As String, ByVal Rename As Boolean) As Boolean
Dim wRemote As System.Net.HttpWebRequest
[Code].....
I have a datagridview that was bound using the wizard and all the column created that way. So I haven't done any code to bind the datagridview. It will pull the data from the database and dataset just fine. My problem is when I create a new row it won't update the dataset or database. I have tried different ways that I thought it would work in the code and still haven't found a usable way to do it yet. Or if I need to do all my binding and columns through code give me an idea where to start if I have to go that route. This is my first experiences with Datagridview. I normally use comboboxes and textboxes to write to a dataset and database which all work very well.
View 8 RepliesI am creating a project which needs to update/create/modify etc the registry. I am able to all the things, the problem in which i am stuck is that after editing Registry changed doesnot take place instantly i have to log off/log in to se changes to take place. I am looking for a way to update the registry without logging off and on.
View 4 Replies