VS 2010 - How To Create Class Library

Mar 28, 2011

I am using visual studio 2010 and tried to create a class library which I then use in an application that will create tasks using the TaskFactory and execute the class functions from the newly created class library. However I get the instance not defined errors in the application.

CLASS LIBRARY:
Assembly Name: GPStream
Root namespace: TFStream
Project with different classes:
GPStream:
gStream.vb,
[Code] .....

I do have it added as a reference.
Class library:
Assembly name GPStream, Root Namespace GPStream
Project name GPStream, Main Class gStream

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VS 2010 Class Library / - If Create A DLL Using VB 2010 Express Can It Be Used By Previous Versions Of Of .Net (3.5 - 2.0)

Aug 19, 2011

If I create a DLL using VB 2010 express can it be used by previous versions of of .Net (3.5, 2.0)? Will the DLL use .Net 4.0 components, which is what I want. I don't see a way to force that to be the case.

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VB2010 Class Library: Create A Static Library Instead Of DLL?

Jun 21, 2011

I 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?

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Create A Class Library Project Is That A COM Component?

Feb 7, 2012

I hear COM here and there and I want to know is COM and a COM dll the same thing, and most important: when I create a Class library project is that a COM component?

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Create A DLL From A Class Library In Visual Basic?

Aug 11, 2010

I am trying to create a DLL from a class library in Visual Basic.

First I created a new Project in Visual Basic Express 2010 as a class library. Then I added a class which contains a function that I want to access in another program. This is why I want to export the class library as a DLL. In visual studio I am compiling the project which refreshes the saved dll in the bin folder of the project directory. When I open this dll or include it as a reference in another executable visual basic project, it does not find the function. how to generate a dll from a visual basic class library properly?

Here is the code of the class stored in the class library project:

Public Class Test
Public erg As String
Public Shared Function fTest(ByVal in As String, ByRef out As String) As Boolean

[Code]....

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Create Video Player In Class Library?

Sep 22, 2009

I want to know how to make my own video player in the dll class library. The methods that I want to create is to make the size frame border, make the size of the video screen, control to improve the video quality, enable contextmenu anywhere, controls the video like play, pause, stop.....etc. Are there is possible to create my own video player in the dll class library?

I wish to use the flash player but I can't control them by make the size of the frame border, disabled the flash menu and replace with contextmenu, control to improve the video quality, apply to change the skins.....etc

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How To Create Video Player In Class Library

Sep 17, 2009

I want to know how to make my own video player in the dll class library. The methods that I want to create is to make the size frame border, make the size of the video screen, control to improve the video quality, enable contextmenu anywhere, controls the video like play, pause, stop.....etc. Are there is possible to create my own video player in the dll class library? I wish to use the flash player but I can't control them by make the size of the frame border, disabled the flash menu and replace with contextmenu, control to improve the video quality, apply to change the skins.....etc

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VS 2008 Create A Class Library In C# And Then Use That Dll In A .net Project?

Dec 30, 2009

I know you can create a class library in C#.NET and then use that dll in a vb.net project and everything is just peachy. But can you use C++.NET and VB.NET/C#.NET in that manner?

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Create An Application Without Distributing A Referenced Class Library

Mar 1, 2011

I am using VB .NET 2003. I have created a user defined Class Library and created a reference to it in my application. Is there a way I can compile the application so that the Class Library DLL is embedded into the application? I would really like to be able to distribute the application without having to distribute the DLL as a second a file.

In other words, I made a New Class Library lets say called TEST. I developed a new class within this library called MYCLASS. I built the Library TEST and created TEST.DLL. I then made a new visual basic project called APP1. I added a reference to TEST.DLL. I now can use TEST.MYCLASS within my APP1 project. The application APP1.EXE will run in the test environment, but if I move it to the runtime environment it will give me an error "File or assembly name TEST or one of its dependencies was not found". To correct this error I can place TEST.DLL in the directory where APP1.EXE resides. I would prefer not to have to put TEST.DLL in the directory. Can I easily compile it into APP1?

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Create A Class Library That Has Forms To That The Users Can Perform Some Functionality?

Mar 14, 2008

I 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.

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Create License For My Class Library Projects(dlls) / Win Apps?

Jul 24, 2011

How can create license for my Class library projects(dlls) or win apps?

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VS 2010 Class Library (dll) With Ocx

Oct 12, 2011

I'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.

[Code]...

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VS 2010 Forms In Class Library Project?

Jun 17, 2011

I 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

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VS 2010 How To Add A Project Reference To A Class Library

Feb 23, 2012

I've created a class library and it's shared by several projects I'm working on.

I added a reference to the DLL - but it appears to have copied it locally - and that's causing problems when I modify the class library. Seems I have to drop the reference and re-add it.

I'm seeing info on the web about adding a PROJECT REFERENCE but can't seem to get that to work.

What is the best method of sharing a class library with several other projects.

Actually - should all my projects be in one SOLUTION? Is that preferred.

It will be 5 projects all working with the same class library...

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VS 2010 Class Library - Cannot Use Form / Screen Or Bitmap

Feb 5, 2011

I'm trying to create a DLL with some useful methods and subs for my use. But when I tried declaring an object for Form or using the keyword Screen, Bitmap, etc.. gives an error saying that "The type 'Screen' is not defined" and like that..

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VS 2010 Class Library Project - Tons Of Errors

Oct 22, 2010

In one of my applications, I decided to make a separate project for a few general classes. However, it started to give me tons of errors that I am having a difficult time figuring out.

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IDE - Upgrade To 2010 Projects Referencing A Class Library Targeting A Different Framework Fail To Build

Aug 18, 2010

Say I have a Framework 4.0 project that is referencing a class library targeting 3.5. The project will simply not build. It won't give me any valid error message it will just act as though the reference does not exist.

Projects that were working like this in Visual Studio 2008 are no longer working in 2010. Took me forever to figure out what there error is. If I remove the project reference and add it back the intellisense lights up and you can tell a variable referenced in the class library is found. But as soon as you build the project everything is lost. My using statements get underlined, references to the variable all turn grey and project fails to build saying the class cannot be found. Once I make the class library 4.0 as well everything builds. I get the same issue between 4.0 client profile and 4.0 as well.

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VS 2010 : Create A New Class And Have Each List Item Of That Class Such As 'btnID', 'btnText'?

Apr 27, 2011

I want to read a number of items from a file and then associate each of those items with a new button at run-time, so that when the user clicks one of the buttons I can display some information about that item.Can I use a LIST to manage these buttons and items? Can I create a new class and have each list item of that class, such as 'btnID', 'btnText', etc... ?

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VS 2010 Class Create Another Instance Of The Class Itself?

Jun 11, 2012

I want to create a class that will "search" for something. Basically I load up the "search item" when the class is created and inside the class is logic to do the "search". The result of this logic will be more "searches" that I want to start. How can I have the logic in the class create another instance of the class itself?

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VS 2010 Class Library "Cannot Find DLL Entry Point"?

Jun 24, 2010

As an experiment, I created a separate library to hold a function, and then tried to call it from within an application.Normally, would I would expect to see in the code for the function declaration, something like this:Public Function MyFunction Alias "MyFunction" (ByVal X As Long) Export As LongVB uses the regular convention:

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Adding A Windows Service Class To A Class Library

Feb 14, 2012

I 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.

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Creating An Instance Of A Class From A Class Library?

May 18, 2010

I'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".

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Private And Public Class At Class Library

Mar 12, 2011

I'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

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Made A Class Using New->Class Library

Nov 17, 2009

I 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).

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.dll In Class Library?

Dec 29, 2009

there'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?

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Class Library Or Not?

Oct 18, 2010

I 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.

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VS 2010 Save As Class - Create A Panel Full Of Items

Dec 21, 2010

how to create a panel full of items (textboxes, buttons, labels, ...) and save it as a class with all it's properties so I can create it and place as object on other panel. My goal is to create an application with menu on the side and change workspace (the part on the rest of the form) between 3 or more possible different "workspaces" (made by the classes).

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VS 2010 Reflection, Create A Class With Dynamically Named Properties?

May 11, 2010

I'm trying to make a very simple audio tag editor. The idea is that the user can select as many audio files as he likes from a ListView, and a PropertyGrid will then display their tags + their values.When multiple files are selected, I want the property grid to display the values of the tags that all files have in common, and display empty values for tags that the files do not have in common.As an example, look at the properties list in your Visual Studio IDE when you select multiple controls (of the same type for this matter). Select a few Button controls, for example, and notice that the properties whose values are the same (often things like Font, ForeColor, etc) are displayed. Also notice that the values for properties that are not the same (Text, Name, etc) are empty.

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ConnectionString In Class Library

Apr 27, 2011

I'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

[Code].....