I have a new requirement to sync a DVR to an NTP server, but not sure how. I have googled and forum searched, but a lot is VB6 stuff and also for sync'ing a local computer's time. This requirement is for sync'ing time for a Digital Video Recorder on the network.
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The MSDN documentation for WMPLIB states that syncing to device is not supported in .NET programming, only C++.Is there, however, a simple wrapper class or DLL that can be used to interface between a .NET program and the nescessary C++ code?Or is there a better way to sync files to a device using VB.NET? Are all devices suited/compatible with just a simple filesystem.copyfile ?
View 1 RepliesI was creating an enrollment system for my Thesis, and my adviser told me that I must have a Code in my program that Synchronize database from client and server so that if the terminal connection is "Up" the data will go to the server and if the connection is "Down" the data will go to the installed server on the the local machine. and every 20 mins or 30 mins will sync the database.
View 5 RepliesI have a client that has the basic database on a server(sql server 2005 express database) and wants to work on his laptop from his home, so i guess that i can install the software on his laptop but how will the 2 databases be synchronized, having same data. the synchronization will be made once a day in the morning when he returns to his office. How can this be accomplished?
View 2 RepliesHow would i go about seting up a local database to store data so it can be used offline then to sync up with SQL server 2008 r2. i've got to the point of having a test project with a local DB that stores the data and a test SQL server but know idea how to set it up to sync with between databases.
View 2 Repliesa small question: what is the difference between sync and async connections in a tcp/ip client/server application?
View 1 RepliesI want to filter the SQL Compact Database to get rows that as been synchronized to the SQL SEVER Using sync framework can any one give me an hint on how to get this done. I will prefer a sample code in VB.NET
View 1 RepliesI am working on a way to send commands to an Arduino board from a web site. The Arduino board is connected to the computer via a USB port (a COM port).
I have managed to connect and control the board using a VB.NET program. I also wrote a VB.NET class that can instantiate a COM connection and send and receive messages.
My next step is to basically create a program that will act as a proxy between my web server (IIS 7 running on Windows Vista) and the Arduino board. When a user gets to my ASP.NET page, the page will then send a command to the proxy to open the COM connection. When the connection is open and ready then I can send commands to the proxy. In turn, the proxy will send these commands to the board and listen for the responses it receives from the board. The proxy will then pass these messages back to the ASP.NET page.
The main issue I see occurring is that if a second user opens the web page and tries to open the COM port, there will be an error. Will this cause the first connection to fail? I guess I can first check if the port is already in use and give the second user a message. Are there any other potential challenges I am missing or not seeing?
Website dat have samples codes on HTTP GET/POST from a device server?
View 3 RepliesServer: Msg 823, Level 24, State 2, Line 1
I/O error 21(The device is not ready.) detected during read at offset 0x0000000001c000 in file 'Y:MSSQLDATAGLC2005.mdf'.
I'm currently working on an VB.net application using Win forms and SQL Server Express 2008. One of the major functions of our program is to generate work orders for field engineers. These engineers typically work in a factory and have to walk around the factory to complete these work orders doing things such as recording pressures and voltages of certain equipment. Right now they are printing out the work orders and writing down these values then entering them into the computer when they get back from doing the work.
We would like them to have some sort of handheld device we could push their work orders out to that would allow them to enter values/complete work orders and then come back and sync up with our app. Something like an ipod touch or maybe a bit larger seems like a good kind of device. Not really sure what kind of device would work for this and what OS it should run. I'm guessing it will be easiest if I can get something that can run SQL server on it. Also, how would I implement something like this?
Scenario: I want to develop an application.The application should be able to connect to my remote server and download data to the local disk , while downloading it should check for new files and only download the new ones simultaneously creating the required(new) folders.
Problem: I have no idea how to compare the files in the server with the ones in the local disk.How to download only the new files from the server to the local disk?
What am thinking?: I want to sync the files in the local machine with the ones in the server. I am planning to use rsync for syncing but i have no idea how to use it with ASP.NET.
how can i make my program feel if any device or usb device plugged into the computer or unplugged.url...
View 3 RepliesA Problem in accessing a device from VB Windows cannot load the device driver for this hardware because there is a duplicate device already running in the system. (Code 42) This error is because i am using 2 devices of the same company which has the mass usb storage on it and when i install one of the device the other hides. So one is detected the Other is not. It also give a error called designed dragnonacally something...
View 2 RepliesI have developed a vb.net application which creates a csv file from database. When I run it from my system it works perfectly but when I copy the files from release folder to a folder on the server and runs the .exe file it give me IO Exception error. "The device is not readyť
[Code]...
I have a windows application and a php web application(not connected to internet all times), eventually data add/remove/update can happen at either places. So data has to be synchronized every day or manually.
I have a small sqllite database file (less than 500K) in my end, and the php web app uses Mysql, the structures remain the same. I would like to have a update function in my windows app, which sends my sqllite database file directly to my webserver and then1. Php should read values from the sqllite database files insert some values into mysql from the uploaded file 2. Php should read values from the mysql database files and insert them to sqllite database file
and finally send them back to my windows client pc. I would like to use .net 2.0.Anyone has an idea to get the above done or a suggestion to make the sync easier will help me a lot. Give me light on how the architecture or design should be done to achieve this
I have a class that sends an email which i use sendasyc
SMTPServer.SendAsync(message, _message_id)
The result of the email is captured by the following code
Sub SendCompletedCallback(ByVal sender As Object, ByVal e As AsyncCompletedEventArgs)
Dim message_id As String = CType(e.UserState, String)
[Code]....
This works fine when the code is run within a form but when i move it into a dll calling it from a console app it neither sends emails nor picks up any errors.
Public Class Form1
Public elapsed_time As TimeSpan
Public start_time, stop_time As DateTime
Public txtBreak As String = "180"
[code]....
All the code needs to be controled by seperate timers as the user may need to pause timer3 or timer4 at any one time. The problem I have is that after about 5 minutes the time and elapsed time are about three seconds ahead of the two count down timers.
I'm just looking for an answer or idea.I plan to connect vb.net to mysql (which is done) and also the PHP connected to the mysql.But I'm confuse with something.VB.NET is use for offline things (which people will come to store and buy), but PHP is buying / booking online. (You know the airport things right ? customer can directly go to the airport and buy tickets or they can buy tickets from the internet)
For ex :Customer A come to airport and buy a ticket which is only left 1 tickets. Customer B wanted to buy from the internet. Both of them saw there is only left 1 tickets. So, both of them buying. When Customer A buy, the employee click buy at the same time with Customer B.In here, I'm confuse, how to declare which person should get the ticket because they click buy at the same time (server time because PHP and MySQL located to the server and vb.net applciation located to other PC/Machine) ?.
I have two comboboxes on my form and both are bound to the same datatable. The problem is that each time a value is selected from one combobox, the value in the other combobox changes to the value selected in the former. Is there anyway to disable this behaviour?Only performance counts!
View 2 RepliesOn my form I have a button that says "Sync To USB" When its clicked this is what I want to happen: The files in ListBox3 will be copied onto a USB Mass Storage Device (if it is inserted) otherwise it will play the sound "USB not inserted.WMV".
View 5 Repliesi just want to ask if how can i sync my files (like dropbox) via web service? is that possible in vb.net?
View 2 RepliesHow can I sync 2 binding sources, both binding sources contain the same data(contactsbindingsource)I have 2 forms:1 form is a list of contact information the other is a search form.I have a linq querie in the search form that returns contact names to a datagridview, but I want to be able to double click on selected cell and have the relevant data appear on my first form.Also my first form has FK relationship to another form that contains company information, could this have something to do with it?
View 6 RepliesI am reading a lot in this forum about sync. It must be fantastic. I look a round for any tutorial, but I haven't found one. Let me tell me the story about the new program I want to write.I am working on a campsite in France. When there is a problem like a Mobilehome isn't clean. The person who is working on the reception write a note and the one how is going to fix it will be called. This is not a really good thing.I like to write an program in Visual Basic that allow the person who is working at the reception write the task in an program. This program will use a database to store the task. The person who is working at the campsite will see the task at his mobile phone (Windows mobile 6) He will fix the task and the reception can see in the application that the task is done.So I need a database who is synchronized whit the one in the mobile phone. The mobile phone can work offline and online. By online the database will be synchronized to the one in the reception.
View 1 RepliesI have a small "Clinic Application" that runs on two machines. (Receptionists & Doctors)
Same application is installed at both the computers, and they access the same SQL Server 2008 Data at a 3rd macine.
When the application is started, the local datasets are filled with the data from the 3rd machine (using tableadapter.fill).
Whenever the Receptionist adds a Patient in DataGrid,and saved it, it should show in Doctors DataGrid. and whenever Doctor adds something, the receptionists dataGrid should show it.
to accomplish this I have set a timer that keeps Filling datasets.
the task is successfully accomplished, but....
I have been using vb.net for a while. I am trying to figure out if there is a way that i can update file in a given folder to ftp and get any file on server back using vb.net?
View 2 Repliesi'm interested in syncing a remote folder and a local one over FTP but I don't want to use 3rd party components since this is not going to be a public build so I see no reason to invest on something like this now any code snippets or so available? PS. remote folder includes folders also that can change so I want to keep an update of the remote folder on my PC.
View 3 RepliesI have 2 listview with the same number of lines, what I want to do is when a user scroll the fist listview I want to second one to scroll too.
View 3 RepliesI have an application that has several stopwatches. I would like to be able to 'sync' a stopwatch with another at any given time. I tried setting the Elapsed time of one stopwatch to that of another stopwatch but I get that that property is 'read only'.
View 2 RepliesHow do you guys take control of a listbox in a form from another form? I could have sworn I've done this before but can't remember how or find any of my programs that did this. In form load i populate a listbox with a routine. I wish to call that routine again to refresh it from another form.
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