Detect Data Changes In A Dataset On Runtime Program And SQL Express 2008?
Dec 14, 2009
I have designed an application for a company which has 5 client computers that read and write data to an sql2008 instance on a server.I would like to know the way to detect a change in a table whithout having to refill the table adapter.Let's say that all the client applications have a datagridview on the main form which binds to a table on the database lets say Members table (members binding source)Whenever a client makes a change to that table (lets say that it updates the Last name of a member) i would like the rest of the clients to detect that update and as a result ,update the specific row or cell in the datagridview.Is there some kind of event that is raised?
My project is a server/client application, how do I copy existing panel with labels and pictureboxes to show stats of clients connected? I mean once the server accepts a client, stats of that client is shown on a new panel but has the same contents as the existing panel. Any Idea how to do this? I was thinking to make a set of panels and hide them if there's no client connecting but what if there are too many clients connecting more than the set of panels already made?
I'm using Visual Basic Express 2008 in Windows 7(64-Bit). I've added a datasource to my project and dragged a table from Data Sources onto my form. It automatically created a DataViewGrid and placed this statement in my form load event:
The DataGridView shows all the correct fields/columns. The .DataSource property for the DataGridView is set to the automatically created BillsBindingSource. When I preview the BillsTableAdapter, the data appears. But data does not appear when I run the app. The datagridview is empty. When I build the app and run the executable, I get a Microsoft .NET Framework error message that says: "Unhandled exception has occurred in your application. If you click continue, the application will ignore this error and attempt to continue. If you click Quit, the applicaiton will close immediately. The 'Microsoft .ACE.OELDB.12.0' provider is not registered on the local machine." If I click "Continue" I get my form with an empty DataGridView. What am I missing to get the data to display in the grid at run time? Oh, and I've also tried using the DataGridView in C# and I get the same problem.
Only my local dataset updates when adding, deleting or editing records.The Source Database is supposed to update on issuing DataAdapter. Update(dataset )However, when I check my source database after running the operations it remains the same as the original.
I am currently working on a simple data encryption program in VB 2008 express. Basically, I want the user to be able to select any file type and the program will read the data and store it in a text box. The user would then input a key, push the encrypt button and the program would XOR each byte of data with each character from the key and store the data in the third text box. I have written a program that has similar functionality only, it will not read from files, it simply reads data from a text box, so I have a encryption algorithm that works.Here is my
I have a XML file that temporary stored data from the DB. i have DataSet that reads from the XML file and fill the DataSet. i want to set this Dataset as data source to ReportViewer in runtime
I'm wondering if its possible to change the query that grabs the data from the dataset at runtime, in order to produce a report based on different criteria.My project doesnt use dataset, and I've had to make one purely for the reports I'm currently using the mySQL .net connector calling everything via code, as well as the query I want to make at the time.Also, I don't want the report to be embedded in the application but be a seperate file as the report may change frequently (the layout of it)I've tried setting the build action as none, but I just get an error in the intermediate window.
The program I am trying to modify was initially written using VB 2005 Express. I have subsequently downloaded the 2008 version. The program creates a monthly spreadsheet from a template. The old code that will no longer (highlighted and underlined) compile is as follows:
I am using VB Exopress 2008 and SQl Server Express 2008 in Windows Vista Home Premium. I have created a dataset after importing all tables and queries from MS Access to SQL Server. I have now added a view in SQL Server that I want to access and use in VB Express. However on clicking "Refresh" for the dataset the new view does not display in the available objects, only those I originally imported and opened with the original dataset. What, pleas am I doing wrong? How can I see this new View?
I'm trying to create a simple Data Grid that will automatically save changes. So far I have a data grid connected to a MS Access 2007 Database that reads the data. I can create new fields in the Data Grid, but I need to program to save the data automatically to the database on update (or on close).
Im trying to create a small program using the "toaster popup effect". I have the working. My problem is , i have a basic webpage here ( http://www.pro-coders.com/latestthreads.php ) that displays all the recent threads thats created on my forum, so i want to make this popup when theres a new thread to alert the users.How could i code it to automatically detect if a new thread has been posted from the webpage ?
I have a program in vb express 2008 which I would like to publish in a little more professional manner than provided in the standard vb express package. I would at least like to include a "Terms of Use" document the user must agree to before installing the program. I have dovnloaded and installed web developer, c# and vs 2008. Do any of these include a professional installer? If not are there any free installer packages available? I am 72 and live on a limited budget so I cannot aford an expensive package for one program.
I have make an program in VB express 2008 ( Three years work )This program is stand alone , you can start it everywhere My program works on XP , VISTA and Window 7 I have make an setup program to install it in MyDocuments But the path in XP is not the same as VISTA or Windows 7 ( I know how to do this )
What I want to do is to make an short desktop of my program with the same icon as my program on the desktop
when publishing a program is it possible to get it to include or copy over a mdb file and can the setup be made into 1 setup file instead of the "Application Files Folder" and "Program name.application"
I've been trying to figure out a simple keypress handling event.I have the code working fine after hunting for a couple of days on the net but have a problem getting rid of the obnoxious bong that comes along with hitting the ENTER key.I've attempted some solutions on the web about changing the KeyAscii to 0 but under that method I cannot even get the program to recognize the key is even being pressed.The code I have so far is as follows and I'm just trying to get rid of the audible bong.
I have a WinForm program developed in VB.Net with Visual Studio 2005. The program needs Microsoft Office Runtime installed atleast on the computer to allow the application to run without any errors.
Is their a way to check the computer to see if the minimum of the Runtime or Microsoft Office is installed on the computer? If either isn't I would like to display a message to the user on the startup of the application that states to atleast go to Microsot's site (I have full link to Runtime Download) and download the runtime for free.
Or is their a way to include the runtime as a component with my install for the application so if it isn't installed on the computer already it will install when the application is installed?
And here I am with a new problem in my program When I debug it everything works fine (the buttons, progressbars, pinger, spambot, When I compile it and run the Executable file, it works too.When I run the Executable file on another computer (tried on 4 different ones) the program stops working and I get this error:
{$ exception. "Failed to create the form For more information, see Exception.InnerException error: File or assembly ." Microsoft.VisualBasic.PowerPacks, Version = 9.0.0.0, Culture = neutral, PublicKeyToken = b03f5f7f11d50a3a "or one of its dependencies not found. The system can not find the file specified .."} System.Exception {System.InvalidOperationException}
how I can start a program with Visual Basic Express Edition 2008? I mean do you have any code I can use as a base to start another program? If that made sense.
I am starting design of a program that needs to run no matter if the user is logged in to the PC or not. So I will be writing it as a VB.Net Service.
As I am not overly familiar with SQL Server Express, is it possible to connect to a local SQL Server Express Instance and access the database from a VB.Net Service while the user is not logged in to the PC?
I've been looking all over the internet trying to figure out how to incorporate Speech Recognition into a program I'm designing in Visual Basic.I've downloaded and installed: Visual Basic 2008 express edition, Visual Basic 2010 express edition, Speech SDK 5.1, and the Windows SDK version 7.1.
I'm not really sure what I'm doing wrong, or if maybe I have to use a different programming language like C# or C++...I don't know. I've looked through sample codes and tried a few, but in both Visual basic 2008 and 2010 they say the terms aren't recognized. like System.speech isn't recognized at all.
I built the sample project "How Do I" Data Access and ran into a problem adding, updating or deleting records. The project works like a champ until this step... It will let me delete, change or add records just fine, but when I save and close project and go back to my "show table data" in the database explorer nothing has changed?
How do you create custom chrome for a windows form in vb.net using Visual Basic 2008 express? I want to basically scrap what they give and start fresh.
Basically i am creating a Hangman program using VB 2008 Express edition and need some help.I would like some help on when a user is entering a letter for the word how can i make it so for example if the target word is "MAX" and they enter "M" i would like the lblstatus to update as "M--" obviously i would want it to be able to do it with all 3 letters.
I am in process of writing a setup program that will reside in a USB stick.After inserting the Stick the VB2008E program starts (dont know how) and guides the technician to do certain tasks. As a part of this She/He needs to run a Setup.exe that resides in the same USB stick.
1- How do I define the drive letter of this USB stick.
2- How do I run the x:Setup.exe program without exiting the VB2008? The install process should begin after click of a button.
3- Would Autorun work on USB drives to run the program automaticaly?
4- How do I compile to make a single EXE file at the end?
I have a set of labels that contain number values that need to be saved into a txt file and recalled from a text file by a button click event.
Ive been searching these fourms for days trying to find the answer to the save / load data problem. From what I understand, XML should be used to do this. But no matter how much I read I cant make sense out of how to solve this issue. I just need a simple and quick fix that dosen't have to use XML[code]...
