Common Instance Between Multiple Project ?
Jun 28, 2011
There are 3 project in vb.net MAIN PROJECT, BLL(Business Logic Layer), DAL(Data Access Layer) now we are trying to maintain one single instance of some values through out the assembly or what we can called single instance should get used in all projects...for example there is a class called clsParameter we need only one instance of this class should get used through out all projects so if i made any change in MAIN PROJECT same values also get updated in BLL or BLL should receive same values....
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Jul 26, 2011
I want to be able to incorporate some constant definitions and enum types in multiple classes of mine.Something akin to including a header file in C++. How do I do this best in VB.NET? I'm having a hard time because the only way I can see to do it is to inherit a class with the definitions in it but there is no multiple inheritance in vb.net so I am having some issues with that.
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Jun 19, 2012
I'm new to the .NET platform (old-time ASPer) and for a project have a simple pair of .aspx scripts that take some querystring data and process it. They both make use of the same Subs, Functions in them, so naturally I'd like to move the code to a common resource.vb file. Having done some reading, it looks like my options are a Code-Behind type setup, and placing the Subs, Functions in a .vb file and placing that file in App_Code.So, the Code-Behind model doesn't seem to make sense here, as the functions are shared by both files. Placing the Subs and Functions in /App_Code/resources.vb and I am getting the following error when trying to call any of the routines:
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Jun 3, 2010
I am migrating VB application in VB.NET. In VB application , there are using Microsoft windows common control 5.0 COMCTL32.OCX. When I add this component in migrated project, it becomes interop_mscommlib.dll. I want to remove any interop dll in my migrated project. So my question is : Is there any .net supported COMCTL32 which i can use and from where I can get that.
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Jan 31, 2009
I have data entries in my database that have a common field. For example:
account_id type user_id
1 new 1
2 old 3
3 new 1
4 old 1
I am using a query like this(mysql): SELECT account_id, type, user_id FROM table WHERE user_id = 1
This is just all theoretical. The problem that I am having with this is it is only returning the first result in this case account_id 1. How can I get it to find all the results with the user_id 1 because in the way I am thinking that it is failing is that it is finding only the first result and then ending?
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Jun 17, 2008
I am compiling a VB Project in VS2005 with SP1. This is the error that I am getting when I build this project.
12>C:WINDOWSMicrosoft.NETFrameworkv2.0.50727Microsoft.Common.targets(802,9): error MSB3108: Error executing the ResolveNonMSBuildProjectOutput task. An error occurred while parsing EntityName. Line 1, position 115.Microsoft.Common.targets is a file present in WINDOWS folder and used internally by VS2005 while building the projects. I am not able to get any clue why this error has come.
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Nov 28, 2011
How do i get multiple icons in a project for use with shortcuts OUTSIDE the project..
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Nov 18, 2009
is it possible to use a dll in my project without having to create an instance of the dll? for example I have a dll that has three basic math functions:
[Code]...
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Sep 30, 2011
A colleague has written a useful tool. He wrote it as a standalone tool, but it works even better as an includable dll, though it needs a bit of other functionality for it to be a really good drop-in component. What I am wondering is whether a project can be compiled as both an exe and as a dll?
There are alternatives, such as having a dll version and an exe version, since the dll version needs to include a few different methods that the exe version doesn't need, but this alternative sucks, since it would mean changing two sets of code.
Another alternative is to build the dll, then change the exe to be a project that references the dll....and does nothing other than calling one method in the dll. That kind of sucks, too, but not as bad.
I want to be able to use his module in some of my programs, and it really should be built as a component rather than a standalone app, but I want to know whether there are other options that I haven't considered.
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Apr 18, 2012
In my VB .Net code, I am trying to create to launch MS Project Application. Dim prjApp As Microsoft.Office.Interop.MSProject.Application = New Microsoft.Office.Interop.MSProject.Application
But I am getting the exception as follows:
"Creating an instance of the COM component with CSSID {36D27C48-A1E8-11D3-BA55-00C04F72F325} from the
IClassFactory failed due to the following error: 80010001".Note: This exception happens in 64 bit Windows 7 German OS. But the same code runs successfully in 32 bit Win XP (German and English) and 64 bit Windows 7 English OS.I have even tried the following steps in German 64 bit Win 7
1. Running the application in Administrator mode
2. Setting UAC to low.
3. Re-installing MS Project in German 64 bit Win 7.
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Feb 19, 2009
I'm creating what I believe is an mdi app.I have a login form.I have a class for security.My login form creates an instance of the security class. There are all kinds of security parameters for each user (permissions to different things, etc.)These parameters are part of my security class.Once the user logs in, many other forms will all be opened and closed within the main mdi frame.All of these other forms need the information of the security class to know what the user has permission to do.Do I have to create a new instance of security class for every form in my project? Isn't there a way to store this stuff globally somehow. Retrieve once from the db at the start of the app during login and just get it from this global area everytime?
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May 22, 2009
Consider the following mock-up image I've created:I am new with working with InfoPath and I was curious if anyone knows how to embed an instance of InfoPath inside of a winform, so users can fill out the form without launching the InfoPath application.
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Aug 7, 2009
I am writing a class project application that is loadable from within AutoCAD. This application generates an Excel workbook with extracted data. I am having a problem with Excel closing when finished. It seems the Excel instance hangs until my application is unloaded. I have found the section of code that seems to be causing to hang, but I'm not sure why its hanging to prevent it.
Below is a copy of my code for the class (top to bottom with exception of the FileExistValidation method... too many characters ). The code section that is commented out seems to be what is causing it to hang. If I uncomment that, Excel hangs, with it commented out, Excel closes out in the background.[code]...
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Oct 19, 2010
I developing a windows application. i dont want to allow multiple instance of the application how i will achive that?
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Aug 29, 2011
I don't know how to do this and I've googled this to death.
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Mar 24, 2010
I am in the process of trying to build an app that will permit multiple instances of the same form be added to an mdiparent as seperate mdichildren. The reason for this is that the child's data is based on a sql table's row information. Thus child one shows requested data from row 1, child two shows requested data from row 3 etc.
I have this setup so that each child is its own seperate tab in a tabcontrol. My problem is that after the second instance of the child is created the form in the first tab is disappearing after the line:
child.midparent = me
I don't understand what is causing this.
Dim child As Form = Support
Dim tab1 As New TabPage
child.MdiParent = Me
[Code].....
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Jul 14, 2009
I need to be able to run multiple instances of a standalone (3rd party) application. This application prevents multiple instances from being ran from within the application. I need to basically override this.
I know it can be accomplished by hexing the original executable, however I would like to stay away from this method as I'd like for other users to be able to use my application from the get go without needing to hex the 3rd party app themselves or me having to send them the hexed app. Is there any way to achieve this or am I just taking crazy pills?
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May 4, 2012
I will know how do I work with the opened excel instance, when I use multiple userforms. I have on my form1_load open a excel file. Then I observed that on my next userform, was unable to write to that file again. Project have no instance of APP.workbook.
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Sep 22, 2011
I am facing a problem in VB .net Client/Server application where I am successfully able to talk between them using TCPListener and TCPClient class usage. However, when I try to connect another Client to the same server on the same welcome port, it errors out throwing an exception or behaves very unexpectedly.Isn't it true that the Server connection is on a WELCOME PORT for all the clients, and that each client connected gets a new port to carry on its communication with the server AUTOMATICALLY (according to the Tomcat webserver working)
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Dec 13, 2008
I have set the "Make single instance application" check box.And when my application version is 1.0.0.0 for example, it is OK and won't load multiple instances.But when I create a new version, for example 1.0.0.1, then I can run 2 instances of my application, when the 1st instance is 1.0.0.0 and the second instance is 1.0.0.1.What should I do to prevent this?
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Jul 22, 2010
I am using this:
Dim oFile As System.IO.File
Dim oWrite As System.IO.StreamWriter
oWrite = oFile.CreateText("e: est.txt")
oWrite.WriteLine("TEST")
oWrite.Close()
Which works, but I would like to have it so instead of creating test.txt it names the document using multiple input text instance.
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Jun 29, 2010
If you mark your application using "Make Single Instance Application" option in the application settings tab and run your application under a GUEST account or a restricted limited/standard account the application throws UnAuthorizedAccessException or CantStartSingleInstanceException.
Take the following steps to reproduce this behavior.
1) Create Windows Form application.
2) Enable the "Make Single Instance Application" in the project properties.
3) Log onto a GUEST account and open the application twice to simulate StartUpNextInstance.
We need developers to reproduce this behavior and post any valuable input if you experience these symptoms.
When posting information please include the following:
a) The operating system version + service pack.
b) The .NET framework version used.
c) Verify this symptom is present when running under GUEST account.
To workaround this issue turn off the "Make Single Instance Application" option ad create a Local named mutex in the StartUp() event.
[Code]...
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Aug 8, 2011
my solution is make a class and public share this class as new in the class itself. it is a class to be filled with constants.
is there any programmatical objection against this solution ?
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Dec 13, 2010
I have a windows forms application developed in vb.net 2008 (WBLoad) that opens and loads an Excel 2010 workbook (xlAnalysis.xlsm). The xlAnalysis.xlsm is included in the project WBLoad and is loaded from the application folder which is on the user's C: drive.
The wbLoad.Application and associated files are deployed to several network servers across the company.I just created a custom action pane using vb.net 2010 and added it to xlAnalysis.xlsm. The question is how to I include the workbook with the action pane in the WBLoad project?
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Apr 27, 2009
I have a project which is using VB Language, is it possible I combine some classes with C# language into it? "Project" not a solution.
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Jan 17, 2010
My project will be a collection of 3 projects that have similar GUI's and call on common assemblies. I want my project to contain 3 executable files when published that will load one of the designated smaller projects. Each of the smaller projects is designed to perform a different task, yet they are all similar in terms of looks and how the user interacts with the program. The best way to picture it would be MS Office. All the office programs (excel, word etc..) are part of the same package, and look similar but they perform different tasks. You can load any of these programs by opening the relevant .exe file, which is exactly what i want to do with my application.
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Jun 16, 2010
I am trying to create a deployment project for a solution of many projects and two start-up projects. I understand that there are 2 primary outputs in this case. The solution will not work/make sense if either of the two outputs is not running.
At the moment, I have created a set-up project with the multiple outputs, but then I will have to open the outputs individually for them to work. I am wondering if there is a way to create a desktop icon that targets both outputs simultaenoulsy.
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Dec 6, 2006
i have a multiple form project in vb.net 2003.from my main form i activate the 2nd and from 2nd 3rd and so on.but the problem is when im going back from higher 3rd to 2nd and from 2nd to first, the closing event of my mainform doesnt seem to be working. well i have it me.close but it is still in debugging mode. i could only make it stop thru the stop button.
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May 2, 2012
i have a solution that has two projects in it. one is a start up project. can i run the second project runtime by let's say pressing a button when the first one is running??? if so how can i do that?
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Apr 15, 2010
I declare an array on one form that i'd like to use on another form. I declare it public in the declarations area and edit it later within a Private sub. However, when i reference it from another form it's as if i haven't editted it at all and it is only grabbing the initial declaration.
Public Class form1
Public Array() As Integer
Private Sub button_Click(ByVal sender As System.Object, ByVal e As
[Code]....
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