Running Forms In Class Library?
Jun 20, 2012i have a query iam able to add items in listbox from form 2 to form1 from windows application in vb.net
but iam unable to add items in listbox from form 2 to form1?
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Forms :: Running Form In Class Library?
Jun 20, 2012i have a query iam able to add items in listbox from form 2 to form1 from windows application in vb.net but iam unable to add items in listbox from form 2 to form1
View 3 RepliesVS 2010 Forms In Class Library Project?
Jun 17, 2011I was wondering is it possible to put forms into a class library project and if so could I use those forms as an mdi child from my main forms app?A bit behind what I am trying to do:I am creating a game which is essentially going to have its own 'operating system' As the user progresses in the game they can 'install' new software into their operating system.I have my 'Desktop' that is an MDI Parent and what I want the users to be able to do it when they have purchased a new bit of software (also in game) the game will connect to my central server download a dll and place it in a directory, that is essentially installing the new bit of software and the game will then pick up that dll and add a new button the Programs list and when the user clicks on that software in the Programs list it will launch the form in the Class Library as an MDI Child of the 'desktop
View 2 RepliesForms :: Class Library Reference Disappearing Upon Compiling?
Dec 30, 2011I have a solution built of 3 projects:
1. VB.NET Class Library - data access and objects, reusable methods, etc.
2. ASP.NET Web app - web application that references the class library
3. VB.NET Windows Form app - windows app that references the class library
I have no problems with the web app. It referenes the class library and every time the project is built the web app gets a freshly compiled dll from the class library.
My problem is with the windows form app. When I first add the reference to the class library project, I get all of the intellisense I'd expect while coding. When I try to compile, though, it's like the reference disappears and all my code that is based on the class library errors out with "'xxx' is not declared" or "'xxx' is not defined" where 'xxx' is a method or class within the class library. If I go into the project properties, the reference is still there, but the project no longer compiles and I also lose intellisense for all classes within the class library. If I remove and re-add the reference, it works again, until I try to compile. Then the errors occur again.
I've tried creating a separate Windows Forms project and just referencing the DLL created by the class library but get the same problem. HOWEVER, if I create a seperate blank WEB project and reference the dll (or the project), everything compiles fine. It seems to be something with my class library being referenced by a windows forms app.
For reference purposes, my class library has the following references:system, system.cor, system.data, system.data.datasetextensions, system.drawing, system.web, system.xml, system.xml.linq I noticed I can't add a reference to System.Web in my windows forms app, and I wonder if my problem is somewhere in this area. I need the reference is my class library because it passes some HttpContext objects back and forth to a few of the methods.
Create A Class Library That Has Forms To That The Users Can Perform Some Functionality?
Mar 14, 2008I want to create a Class Library that has forms to that the users can perform some functionality. Is that possible in VS 2008? I believe it is, but can't find any examples out their to provide a template or a guide to create mine. What I am trying to do is put common functionality in a class library to multiple applications that I create can access this class library to perform some functionality.
View 3 RepliesIDE :: Excluding Forms To Convert A Window Forms Application To Class Library Application
Jan 16, 2012I 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 RepliesForms :: Update A TextBox When Running A Thread From A Class?
Sep 15, 2011I am having trouble accessing the main thread (my form) when calling thread is running in a class (or module). I have no problem to manipulate a data (in a thread) from a form, the textbox can be updated using delegate and invokerequired but it doesn't seem as easy when the thread that processes a variable is handled by a thread that is running in a class.
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VB2010 Class Library: Create A Static Library Instead Of DLL?
Jun 21, 2011I have a Visual Basic Class Library project. It generates a DLL. Is there a method to generate a static .LIB to which I can do a static link?Alternatively, can I do a static link against a DLL?
View 6 RepliesVS 2008 : Load Forms From A Class Library Project (.dll) Into New "menu Application"?
Apr 8, 2011I have a class library project (.dll) which contains a couple of forms.I now have a new project that would be the Client.
1) How do I load the forms from the dll into this project at runtime?
2) How do I set the client to be the MDiParent of the forms that will be opened from the dll?
Adding A Windows Service Class To A Class Library
Feb 14, 2012I have a class library in VB.NET that does a NET-envelope for an USB device driver.There is only one function of that driver that I could not envelope in a traditional class, but I had to put it in a Windows Service as described here:Sharing a class property (field) between applications.The Windows Service works fine, but I have now two projects for my NET-envelope: the one with the class library, the second with the windows service and I do not like the idea to maintain two distinct projects for the same driver.Is it a good practice (or even if possible) to add a windows service class to a normal class library (without creating its own project as described in the vb tutorial)?I know, in any case I should create a separate setup only for the windows service, but in this way I could have together all the classes that envelope my usb device driver in only one project.
View 1 RepliesCreating An Instance Of A Class From A Class Library?
May 18, 2010I've createda vb.net class library where I've defined a number of small classes... nothing complicated, just working with strings, sending emails, etc.In another project, I reference the class library and I'm seemingly able to create an instance ofone of tclasses - intellisense shows me all of the plic properties, methods, etc... all looks perfect. No compile errors at all, nothing b gumdropsand lollipops.When I run the app I'm working on that references the class library, it fails at the point where I'm creating an instance of the class and gives me a vague exception, "System.TypeLoadException".
View 2 RepliesPrivate And Public Class At Class Library
Mar 12, 2011I'm posting this there is a relationship with my previous post [URL]
I have two projects, namely:
1. Project1 (Windows Application)
2. Project2 (Class Library)
in Project2 there are several classes:
* frmLogin.vb
* frmCustomer.vb
* clsGlobals.vb
in my case, I want to frmLogin.vb and frmCustomer.vb not called in Project1 and I can only call is clsGlobals.vb
Made A Class Using New->Class Library
Nov 17, 2009I have made a class using New->Class Library. I have 2 constructors, 1 function (that computes length of circle), one subroutine that computes area of circle, and main subroutine.
Public Class Class1
Class Circle
Dim rad As Double
[CODE]...
My problem is when I try to run the program: No errors of syntax.
What I must do? I need to right click in solution explorer add new item->add->class and copy here this code?
After I write the code I chose from the vb menu: Build->Build Solution_name
Before writing the code I choose File->New->and selected class library then save all to save as a project.
Or class library is only a dll file that runs with a windows forms application. (that is added after i write the code for write library).
.dll In Class Library?
Dec 29, 2009there's a lot of dlls i've got one in the Release folder and one in the Debug folder under bin, there seem to be one in the obj folder as well.they all seem to work fine, but which should be the correct one?
View 4 RepliesClass Library Or Not?
Oct 18, 2010I have two projects; A and B, where B needs to use some classes that are in project A. Hence, I added B to A's solution, and in B I added a reference to project A.
Is that sensible? Or should I rather put those classes in a class library?
I see that if I further want to open form/program B from a menu option in project A, then A needs a reference to B. Which would not be possible if B already had a reference to A. However if I use the class library for the common classes, then it's ok as B doesn't need the A reference.
Does this sound logical? It would be nice to know what are typical reasons for putting projects in the same solution, and if it's advised to use libraries aggressively to refactor common code between two projects, even if it's just a couple of classes.. Yet I've never made my own library, so a bit unsure on when to use it.
ConnectionString In Class Library
Apr 27, 2011I'm merging two of my projects that can share a lot of the same classes into one solution with two web applications and a shared class library.
I've literally just dumped all the classes into the class library project and as expected I've got a ton of errors to fix. My main problem at the moment is the connection string. Currently I have this (which is obviously not going to work):
''' <summary>
''' Initialise the data access layer by loading the database connection string from the Web.Config file
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Build My Own Class Library?
Oct 18, 2009Can I create my own class library, possibly to be sold commercially, in VB.NET?
View 2 RepliesClass Library (DLL) And Distributing?
Oct 7, 2011I'm in the midst of developing a class library DLL for a third party application. On my machine, the developers machine, things are going along smoothly. I can compile/build and my DLL is loaded, and thus works as expected.
I've been copying the contents of the Release directory from C:Solutions...Release to C:ProgramDirectory. I realize now that my DLL is loaded into memory from the Release folder, and not the folder I copied it to.The point being of course, I want to distribute this third-party add-in to my users. And sure enough when I try that, presumably the DLL isn't loaded into memory and thus not available to the user, like it is on my machine.
I tried the first obvious thing and registering the DLL on the user's machine, but that failed."The module "..." was loaded but the entry-point DLLRegisterServer was not found." It's apparent I am missing some key step or caveat when it comes to developing this class library.
Class Library Access In WCF?
Jun 30, 2011I have two classes in two files in a class library project, they are:
Public Class Logins
Public CurrentUser As Login
Public Function Authenticate(ByVal id As String, ByVal pw As String)
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Class Library Events?
Mar 6, 2012I`ve made a .NET component in C#. After that, i`ve created a class library in VB.NET and added this C# component and a couple of buttons to the library (creating another component now with buttons). So far, so good.The problem is: when i use this final component (vb.net class library), i want to link all MouseClick Events of its own components (buttons and C# component). In other words, when i add this final class library to my VB solution, it has its own MouseClick event. But when i click inside it doesnt raise the click event unless i do not click in the buttons or in the C# component inside it. I want to raise this event in the application wherever i click (inside or outside its own components).
View 14 RepliesConvert A Class Library For Use In GAC?
Sep 18, 2009My objective is to take a .vb class file that is used on multiple local applications/web sites and convert it to a .dll file that would would be deployed to the servers that we use.The code all works, I can build my class library project with Visual Studios 2008 Pro and end up with a DLL.I can then drag and drop the DLL into any application or website and use it successfully What I'm missing is how to compile it correctly so it will do two things;
1. Get it to show up as a .NET component
2. Get it to NOT scream at me when I try to reference it.
I think part of my problem is that I've been looking up assemblies and dll's when maybe I should have been looking at component authoring.No, I don't want to just stick with the drag and drop into local bins. I might as well just copy and paste the original .vb at that point.
Set Parameter In Class Library?
Jun 10, 2009I want set in class library like this [code]....
View 4 RepliesUsing App.config In A Class Library
Jun 30, 2008I was dangerously close to high-jacking another thread, so I thought I should create my own. We make class libraries so we won't duplicate code, but what about settings? I have a large solution that I've created a project in for common material, which includes an app.config. The problem is that a class library isn't an "app" so my functions can't get to the values. How do I get around this?
View 20 RepliesUsing The Namespace In A Class Library?
Aug 15, 2010I am attempting to use the My.Computer.FileSystem namespace in a WPF VB.NET usercontrol library. I get no Intellisense etc for this namespace. I imagine I need to add a reference but no amount of googling has fixed this and VS.
View 1 RepliesVS 2008 Using A Class Library
Jul 24, 2009I have a legal copy of a dll that I've used for years in VB6. Now I want to use it in VB.net. However, when I try to reference it, VB.net won't let me, displays an error. Tried to register the dll, got a no entry point error.
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VS 2010 Class Library (dll) With Ocx
Oct 12, 2011I'm creating a dll (class library project) file for an OCX. I have an OCX (not Active X, just normal ocx and no need to put on form in order to use it.) which I normally call it from normal windows project's code behind. However, in order to use this OCX, I need to install one software and register with the correct license key.
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Writing A Class Library?
Apr 9, 2012OK, so its many years since I last did anything with VB5 and I now have a requirement to write code in VB2010uld like to put together a proof of concept for a project I am involved in.A lot of our coding exists as VBScript, but I need to add some functionality that VBScript does not offer, and the obvious path is to create a .NET DLL that can be called from VBscript. What I want to be able to demonstrate is the ability to edit a hex character at offset 15 from the beginning in a file not exceeding 2000 bytes. The filename of the target file will be passed from VBScript.
So from a vbscript perspective I would be coding something like:
dim‚myObj, filepath, decval, offset
filepath = "c: emp estfile.bin"
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C# - Call .NET 4.0 WPF Class Library From 2.0 Application
Apr 8, 2011I have an application written in .NET 4.0 that i compile into a DLL file. I want to be able to use this DLL file in a Windows Forms .NET 2.0 application. I don't need the application to really interact much, except just passing a couple string values to the 4.0 DLL. The DLL is pretty much a bunch of Windows which i converted to UserControls and i just need to be able to reference them to display the UserControls from the 2.0 application without having to use a different exe and having to package them separately.
What is the best way to do this? Because when i try to add the reference to the DLL to the 2.0 application, it gives me and error saying the DLL is built in a newer version of .NET so i can't do it that way. Is this where a COM object would come in?
Call A Function In A Vb Class Library (dll)?
May 31, 2011How do I call a function in a visual basic class library?
View 7 RepliesCall Script From A Class Library?
Mar 20, 2011I have created a class library DLL to be referenced from any third-party application and it contains only one function that calls a JavaScript to read a local file and returns some values from the file to referencing application.[code]...
View 1 Replies