Forms :: Class Library Reference Disappearing Upon Compiling?
Dec 30, 2011
I 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.
View 1 Replies
ADVERTISEMENT
Dec 30, 2011
I have a solution built of 3 projects:
View 2 Replies
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...
View 3 Replies
Jun 20, 2012
i 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 6 Replies
Jun 20, 2012
i 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 Replies
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
View 2 Replies
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.
View 3 Replies
Jan 16, 2012
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 Replies
Sep 2, 2009
Suppose I have a solution containing several projects. I set the compiling path as ..in folder. A reference file xxx.dll is used in project aaa, yyy.dll is used in project bbb etc.
xxx.dll and yyy.dll are stored in c:sharedlls folder.
My question is that if I compile the entire solution, do xxx.dll and yyy.dll are draged into ..in folder automatelly?
I am not clear the purpose of the compiling of the solution exactly.
View 4 Replies
Sep 14, 2008
I've made a program using Visual Basic Express Edition which references MySql.Data.dll (located at C:Program FilesMySQLMySQL Connector Net 5.2.3Binaries.NET 2.0MySql.Data.dll) which has been installed on my computer. But when I run my compiled program on a different computer (without MySQL Connector/.NET installed) I am unable to start the program as it gives me an error.
I'm wondering if there is a way to compile the dll with my program so that I wouldn't have to install MySQL Connector on the only computer it'll be executed on (I'm not sure if I have the privilege to install programs on it yet).Or is there a way I could import the dll at runtime which is located in the same directory as my .exe?
View 3 Replies
Jul 29, 2011
When one of my students opened his project yesterday, the Form he designed for it was no longer available. He could run the program but he couldn't edit the form as it had disappeared. Later he couldn't run the program at all as the error said that the form name wasn't part of the WindowsApplication. What's going on?
View 4 Replies
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?
View 6 Replies
Feb 15, 2010
I just tried to convert some of my Projects from VB2008 to VB2010 RC, but got compiling Errors while compiling the resX Files. Seems like the reason are ImageLists/Icons, since if I remove them the files compile fine. I already tried to edit the Forms witch are showing the Errors with the Designer. The Designer changed the Content of the resX file lightly, but the error was still present Here the Error(German Version): 'FormsfrmUserTmpBUTable.resx : error RG0000: Der Objektverweis wurde nicht auf eine Objektinstanz festgelegt.' I recall a similar error in the Beta, but since I can't find it anymore, I guessed it was fixed.
View 4 Replies
Apr 8, 2011
I 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?
View 1 Replies
Oct 27, 2010
I am using datetimepicker control.
Initially I am setting
DateTimePicker1.CustomFormat = " "
DateTimePicker1.Format = DateTimePickerFormat.Custom
[code].....
View 1 Replies
Jan 13, 2011
im developing a desktop program where i use VLC libraries but when i compile de code on visual studio .net and i try to execute the binary on clean windows installation dont work and give me this error message
[Code]...
View 1 Replies
Feb 23, 2009
I want to know how can convert (compile) a class module into a .dll file. You can refer to me an article, tutorial or a code sample.
View 1 Replies
Jan 26, 2012
I have a large web app in vb.net 4.0. Its default namespace is configured in its project properties. None of the root-level classes in our app are surrounded by namespace declarations. When I add a .asmx file to the root folder of the website, it compiles fine, but it doesn't work for some reason (already asked why in other topics). So to get it to work, I try to surround the class declared in the .asmx by a namespace declaration. As soon as I do this, I go from zero compiler errors to about a zillion. My app can't find ANYTHING in the root namespace. But I haven't changed any other files, only this .asmx file.
WHY is it behaving this way? How do I prevent it from behaving this way without refactoring the entire app? I would love to blank out the default namespace and add them explicitly around every root-level class, but I'm not sure that would fly with our release manager, and I don't even know if it would fix the problem.
View 1 Replies
Mar 21, 2011
how to launch forms across languages without compiling.
I have a solution with 2 projects. One is VB.NET and the other is C#. The solution will never be compiled. I am using it as a repository of examples on working with the DevXpress grid. I have a few VB.NET examples and one in C#. The demo runs the C# executable. I was wondering if there was a way to show the C# form from VB.NET in the same solution without going to the executable. This is how I am doing it now:
Private Sub Button7_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button7.Click
Dim info As System.Diagnostics.ProcessStartInfo
[Code]....
I tried linking it but either I did something wrong, don't know how to access it or it doesn't work across languages and didn't generate an error.
P.S. If anyone else uses this grid I can post the code, it is mainly for working with combobox columns. I just don't think anyone here uses the grid.
View 17 Replies
Apr 16, 2010
I was looking at tutorial that was detailing how to Build a Class Library Component and Consumer Client Application. One of the steps involved was how to add a reference to a library. Am I right in assuming that the reason for adding a reference is to show Vb where class library is located. I would also like to know if it is possible to add the reference within the code. In the tutorial the reference was added via the top menu (selecting project and add reference).
View 4 Replies
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.
View 1 Replies
Feb 10, 2009
I want to use IWshRuntimeLibrary library to create shortcut icon, i know how to use it within the VS IDE, just add it as reference. My problem is im creating the program on the fly using CSharpCodeProvider. So how do i reference the library in my source code. it will work if i use it from VS IDE, i got some hints on the web and try it ,but it doesnt load the assembly. The line below is what i got from the web but it doesnt work . "DLLFILES" is the folder that i put the IWshRuntimeLibrary.dll AppDomain.CurrentDomain.AppendPrivatePath(Application.StartupPath + \DLLFILES); i put this line the mainusing IWshRuntimeLibrary; //refrence the library,
View 12 Replies
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".
View 2 Replies
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
View 8 Replies
Aug 16, 2009
This is strange. I tried to create a new project to reference the Outlook Object Library, but I can't get the code references to work. Here's what I'm doing:
Quote:# Start Microsoft Visual Studio .NET.# On the File menu, point to New, and then click Project.# Click Visual Basic Projects under Project Types, and then click Console Application under Templates. By default, Module1.vb is created.# Add a reference to the Microsoft Outlook 12.0 Object Library. To do this, follow these steps:
1. On the Project menu, click Add Reference. 2. Click the COM tab. 3. Click Microsoft Outlook 12.0 Object Library, and then click Select 4. Click OK. If you are prompted to generate wrappers for the library that you selected, click Yes.
# In the Code window, replace the default code with the following code:
[Code].....
View 1 Replies
Dec 20, 2011
I have a .net class library that works fine. This library has a reference to en external dll. I have converted all its class to comclasses and checked the com interopt checkbox in order to use it as com library. I also registered it with regasm.
[Code]...
View 5 Replies
Nov 28, 2010
So I would like to explain what am I doing before I post the question. I would make a textbox in the form, then I add a Microsoft Speech Object Library reference. Then using Microsoft Speech, I would have the text-to-speech option. In the same class I would add this code:
[Code]...
View 1 Replies
Mar 11, 2012
Okay normally this was easy to do, but now with IE9 Visual Studio 2010 hangs and crashes. The problem seems to be even worse because you can't build an Interop.mshtml.dll to match version 9. I've tried using the VS command prompt with no luck. Allegedly this is how it is done, but there are no known examples that actually work. If anyone has done this with success
View 3 Replies
Jan 8, 2011
Im trying to write a simple c++ dll and then reference it in my vb form app however im having a hell of a time doing so. but im getting an error when i call the c++ function in vb.net
here is the c++ code
#include <WINDOWS.H>
LPCSTR DisplayStringByVal(LPCSTR pszString)
[code]....
View 2 Replies
Apr 12, 2010
Is the my reference library is available in visual basic 2008 Express Edition?
View 1 Replies