I'm creating window application with VB.NET and Access2003.the problem is : how do i store the connection string in the app.config file that include the application.startup path? Dim connectionString As String = "Provider=Microsoft.jet.oledb.4.0;data source=" + Application.StartupPath + "db1.mdb;Jet OLEDB:Database Password=hello"
i connect it in each form but i don want this as i want to change it in one place.
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So I'm developing an application in VB2010. The idea is to perform CRUD operations (more or less) to an Access2003 Database. The database is relational, yet I haven't grasped the best architecture to make an application to interact with it. I tough doing a Business layer with a domain model would work. Controllers for each Use case (which are basically CRUD operations) would create Domain Layer object. Yet I don't know yet how to manage the mapping of the objects to/from the database.
View 8 RepliesI am facing a problem in inserting a datarow in the Ms access Database though visual basic application.The scenario is like this:I have a table named 'IssueReturn' for library management System. The table has these fields:
MemId Char(10)
BookId Char(10)
DateOfIssue DateTime
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What would be the reason of creating a wpf window application?
View 6 RepliesI seem to have some finger trouble creating a new application, here is what I am trying to do: I am trying to create a new solution and under the solution an exe (console project and a set up / deployment project. I have done this in the past and cannot see to do that any more.
Steps:
1. Create a new solution, the solution show in the solution explorer (with 0 projects)
2. Using "add" I create a console application (under the solution) and it shows a module etc. So far fine.
3. At this point the solution explorer windows only shows the console project and the solution itself (that used to show on the top) is gone. Now I am not able to add another project to my solution. I close my screen and then try to open the solution again. It comes up with the console project.
I'm in the process of converting a VB6.0 application to VB.Net (2008 Express). I have a MDI parent form, I'll call mdiBackground, and 4 MDI child forms, frmStatus, frmShow, frmQwerty, and frmSentence.The layout is as follows:mdibackground - has the menus at top and is a container for the child forms.frmSentence - appears at the top frmShow & frmQwerty - appear at the left and when one is closed the other one is in the same position.frmStatus - appears at the right, it has buttons which control when frmShow and frmQwerty are to appear I have a couple of regular forms that act as dialog forms. The Me.Close() works fine on these.
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I use a Vb 2008. I make connection with DB Ms Access2007. it show me this error couldn't find....... DBthen I change the DB Ms Access2007 to MS Access2003, and it works very well
View 9 RepliesExcuse me for posting this, but I have searched both Google along with this forum before asking this question, maybe I'm not using the right keywords but I apologize if it's easy to find.I would like to know how one could close a third-party window (application) if a specified string was found in the window title.
View 2 RepliesI would like to know how one could close a third-party window (application) if a specified string was found in the window title.
View 4 RepliesIf you have ever noticed in the Task Manager, when you right-click on the running task, you have many options which include 'Minimize' and 'Maximize'. Is there anyway to do achieve this in vb?
View 1 Repliesi`m trying to create a capture window but when i copy paste the following code from msdn i got this error about hWndC ("Declaration expected"). What`s wrong?
hWndC = capCreateCaptureWindow (
(LPSTR) "My Capture Window", // window name if pop-up
WS_CHILD | WS_VISIBLE, // window style
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Basically i`m trying to write a program to use my webcam via visual basic 2008.
I was wondering if it is possible in VB8 to create a GUI that over-lays over a full-screen application (IE, a movie full screen, games or something that takes over the entire screen)
What I want to know is it possible to be watching a movie and click a button and without minimizing or losing focus on the movie a GUI is displayed. This could be handy in many ways to me to create say.. a clock that I can display so I don't have to minimize etc. to check.
I don't want to interact with the GUI, just display it!
There are three forms on this application and they are a MDI Frame(frmMain) and two child forms (frmSearchEmp, frmEmpDetail).
What I am trying to do is opening a "frmEmpDetail" by executing "CallEmpDetail()" on "frmSearchEmp".[code]....
I've a little program that has got tabControl with 2 tabs - "results" and "log". My idea was that when an error occurs the tab will switch automatically on tbLog to show what the problem was. Most arguably the problem is in threading. This is the code that..I use:
Dim thread As New Thread(AddressOf ExecuteQuery)
thread.Start()
ExecuteQuery executes the query and I'm making an error deliberately to see if I'll be automatically switched to the log tab which is in Try-EndTry procedure:
tbGrid.SelectedTab = tbGrid.TabPages(1)
The program indeed switches to tabLog (which is number 1) but I don't see any controls on it (txtLog), then when I'm trying to switch tabs a couple of times I get "Error creating window handle in a thread". I read other forum threads about it where people as how many controls do they have in their programs but my program does not exceed 70 controls on a form.
I am trying to create a Button via code to sit ontop of a Capture Window resaving a live image from a WebCam.How do I setup a Capture Window a Parant to a Button?
View 1 RepliesThe programing I am creating requires window captions for SendKeys. Some windows hide their captions and I want to be able to use Spy++ or create my own way of getting the caption. All I want from Spy++ is Finder Tool, is there anyway of just taking that from Spy++ or how would I go about creating it?
View 5 RepliesI am using a Thread object to perform a function. This function performs a task and displays its progress in the gridview (like adding rows changing text etc )
The reason I am using a thread for this function is that there is a cancel button on the form. While the task is in progress, user can click on cancel to abort it.
Private Sub BtnStart_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BtnStart.Click m_Thread = New System.Threading.Thread(AddressOf myfunction) m_Thread.Start() End Sub
The function works fine and thread is completed. But calling any method of datagridview after thread is completed ( outside the worker thread ) generates an error- "Error creating window handle".
That's probably because i am not using the invoke method of datagridview for calling its methods or readingwriting properties Do i have to create separate delegates for all the methods properties used in the function ( worker thread)
I am trying to create a simple parent-child form in VB2010. I use a datagridview for each table/datasource and each is bound to the paretn/child table and each table grid fills correctly. What I want is the parent-child relation to enforce filling the child table with only rows that fulfill the current row on the parent. I have created a DataRelation in the form load, but it will not permit a relation between tables in 2 different datasets. If I attempt to place both tables in a single dataset and define the PK-FK relation in the SQL Serve,r I cannot create 2 separate datagrids from the same dataset.
View 12 Repliesmodify console application below to window form application for me.I've tried by myself for million times, but i couldn't console application.rar?
View 2 RepliesI am in need of a small application, that will allways be topmost and will send keystrokes to the last active application (typically notepad or an explorer window). My problem is retrieving the current active form (or application), when my application is started up. Every search seems to return old and rather complex solutions using Win32 library functions, but I was kinda hoping, that .Net allowed for a neater and more simple solution.I need a code example or link on how to retrieve the currently active application window from another application just starting up.
View 2 RepliesIm planning to create a Remote Desktop Application and I'm having problem with viewing other computers monitor or screen.
Im not asking for the code on how to do it. and one more thing is it safe to use winsock in creating a client/server application?
I am looking to call plink from a vb.net application in the background (without showing the black plink cmd screen) is it possible?
View 1 RepliesI m working on an school management application, i design the database in access2003 and forms in vb.net2005. but i dont have any idea about the database conectivity. with the help of a book to connect with the db but i cannot save the data in the mdb file. in my application 1 add the followin buttons add new record modify record delete search using id or enrolment no.
View 1 RepliesWhat is the difference between window form application and WPF application?Also i want to know about WPF application.
View 3 RepliesI need to run an external JAR file (which is minecraft) within the window (form) of a VB.NET application, so like having the program in the center and additional text I like around it.
Is this possible, and if so, how?
I am not able to find the Exclude Command in VB 2010 Express. I have no idea which version of Visual Studio it is working with. I've got one 217MB VB 2010 Express file and many 2008 VB Express files with one of them measuring 31 MB. There many other SQL files and .Net Files.
View 4 RepliesThere doesn't seem to be anything about it.
View 8 RepliesWe have a VB 2008 Windows application that is deployed on several hundred computers. For some strange reason only 2 computers out of the hundreds are experiencing the "Error creating Window handle" error. It is happening more consistantly on one machine than the other. Any idea what might be causing annoying error on such a limited basis? (It's a Windows XP machine that it is happening on. That's all the info I know regarding the machine currently.)
View 2 Repliesim using vs to create a simple security form, i am successful to create a a form of log but i need some more improve like
1) if the software remain untouch for a minute the login form should be shown as the user try to use it again
2) and how the software start automatically when window start
i want to launch the calculator within my vb main window.i have used this before in another app but can't figure out how to duplicate it using vb.net 2010
hCalc
= FindWindow(
NULL
"Calculator"
)
SetParent(
hCalc, MyMainFormHwnd
)