One Project That Targets 2 Versions Of The Framework
Oct 4, 2011
I don't think this is possible but thought I'd just double check...
I have a class library project (i.e building this project results in a DLL being created) and I add a reference to this DLL in several of my other applications. This DLL project targets .NET Framework v2.0.
However, some of these apps that use the DLL target .NET 2.0 (or 3.5) and some target .NET 4.0. But because .NET 4.0 does not include 2.0 and 3.5 in it, its possible for someone to have .NET 4.0 installed but not .NET 2.0, therefore meaning that they won't be able to run my app because of the reference to a DLL that requires .NET 2.0.
So the solutions as far as I can see are: 1. Include .NET 2.0/3.5 as an additional prereq for my .NET 4.0 apps... ewww. 2. Create a copy of this DLL project and make it target .NET 4.0 then in my .NET 4.0 apps add a reference to that rather than the .NET 2.0 version.
So far I've been using the second option, which is working fine but its just very annoying having to remember to copy and paste any changes I make in one version of the DLL project into the other one.
So is there any way I can have a single DLL project but have it build 2 versions of the DLL, one targeting .NET 2.0/3.5 and one targeting .NET 4.0? As I've written this down I've just realised I could always build the solution, copy the DLL out to another folder, then change the target framework and build it again to get the new DLL but that's still not ideal.
Using VS 2010 Ultimate by the way in case that makes any difference to the options I've got available
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Aug 16, 2010
I made a small program which i have sent to all users in my network. Unfortunately i forgot about older versions of framework.
Is there a quick and easy way to add older versions compatibility of framework to my project?
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Jan 4, 2011
I am developing an application using VB.Net which is a simple executable which is to be run from a network drive of our company servers. Most users can access this executable without issue - others however can open the executable but have no connection to our database (even though when running the executable off a local drive such as C:, the database works no problem).
From some posts I have seen this might be a CAS issue - however our IT department suggest the issue might be down to different version of the .NET Framework being to blame. Firstly, is this the issue? Secondly, how can I develop my application to work with different versions of the .NET Framework? Surely this doesn't mean developing many different executables?
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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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May 11, 2012
I'm looking at the MSDN webpage for TextBoxBase.AppendText Method [URL] Under requirements I see "Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
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Jun 23, 2011
I want to update the project with some new functionality but I want to keep the original intact.What's the best way to go about creating a new project with copies of all the files and resources from the original, but with paths that all point to the new copy?
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Jan 11, 2011
I believe one or more versions of VB.Net did away with "default instances" for Forms.
1) Was it in the 2003 or 2005 version(s)?
2) With the more recent 2008 and 2010 verions, is it possible to use a template or
change one of the files in the project so that default Form instances are not created?
I was recently looking at some of the other .Vb files in VB.Net 2008 Express Edition.
By the way, just so you know I could install a full version of Visual Studio if need be from;
2203, 2005, 2008 or 2010
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May 3, 2009
I am using using Visual Basic Express edition 2008. How can save / save as my project in different version when I make changes to the code? i.e. save the same project whenever I make a change in the code and keep the previous version of the code for future reference?
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Feb 2, 2011
I have a solution that I wish to upgrade from Vb.net framework 1.1 to framework 4.0. The solution consists of a number of projects, all but one of which compile to dll's. The master project compiles to a executable which provides a menuing system which dynamically loads the dll's and connects to entry points.
The projects contain normal classes, numbers of forms and also controls, which are either usercontrols or are inherited extensions of standard windows controls.There are a number of third party components (eg reporting and grid controls from Component One, Ribbon control from DevExpress etc).
[Code]...
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Aug 19, 2010
To the board: Lately I've been getting Runtime error 3447 ("The Jet VBA file (VBAJET.dll for 16-bit versions, or VBAJET32 for 32-bit versions) failed to initialize when called. Try reinstalling the application that returned the error") when attempting to open a certain program (not one that I designed, just downloaded and installed). I installed this program in January 2009, but this error began happening only this past July. someone else to information about the files vbajet32.dll and expsrv.dll. One site said that the problem was probably caused by the file expsrv.dll being absent, but I checked my System32 folder, and it's there. As far as I can tell, it has always been there (the computer was made in 2008, and as I said the program had always worked before). Vbajet32.dll is also there. I tried uninstalling and reinstalling the program, but error 3447 still occurs. I also tried uninstalling the program and installing an older version, but 3447 is still there.
I tried replacing expsrv.dll, thinking it might have been corrupt, but that didn't help, and I cannot register that dll anyway. I can't figure this thing out. Both of the files are there, and I didn't change any settings or anything anywhere between last January and this July. By the way, I am on Vista.
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Aug 9, 2010
Is there a way if i have the .lnk path to get the .lnk's targets path like a exe?
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Mar 3, 2012
I get this warning message when I run my project. Can someone explain to me what this means and how I can remove it, or if I need to worry about it.
[code]
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Jan 21, 2012
confirm the forum for this question about Visual Web Developer 2010 Express. I found a VWD Express forum, but it was in Spanish... Lo Siento. My issue is selecting a down-level, 3.5, framework version as I create a new project/website. I have figured out how to CHANGE the target framework version once the website/project is created. I have the 3.5x installed on the system and available. The articles I have seen discussing this issue, refer to a framework version selection drop list in the new project creation dialog/wizard. I do not have that option.
[Code]...
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Feb 9, 2012
I'm looking around and I "think" I'm reading conflicting statements about MonoDevelop's ability to support a VB.NET project. Some places say it's not possible yet, and other places say that you can with MonoDevelop V2.10... unfortunately I can't seem to find this elusive v2.10.
Do any of you know if this is currently possible (even if I have to install a beta)?
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Jun 29, 2010
I've been passed a solution that has a vb.Net 2.0 project that references to a .Net 3.5 library. The library compiles with out problem but the vb project does not. It complains of missing objects which are in the library which are correctly added in the imports. Also I see a yellow yield sign next to the reference library also when I add the reference it complains of the framework version difference. Any help is apritiated. Also I'm using VS10. Imported the projects with no errors. A colleague has this working on VS9.
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May 14, 2009
I want to start my project with a sub main by disabling the application framework. The problem is that if i do this then the application starts and then exits in a few moments. Is there a way which could hold it until the last form is closed.
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Jan 28, 2011
I have VB.NET Window based project built on .NET 3.5 Framework that is working on the Windows7 32 bit System but when I try to run this same application in Windows7 64 bit System it gives an error message: "System.BadImageFormatException: An attempt was made to load a program with an incorrect format. (Exception from HRESULT: 0x8007000B)"
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May 7, 2009
I created a small application and an installer project for it. I can install and also run it, only thing htat i dont like is that during setup, it downloads .NET Framework 3.5 SP1 and this takes long sometimes. I want to have it on the installation CD later.
I have seen in the installer's detected dependencies, that there is the 3.5 framework contained and it has a InstallURL property = [URL]..I am a little confused about all the Framework stuff on this site - so just 3 simple questions:
1) which file exactly do i have to download,
2) where to put it and
3) what to write into the property InstallURL then? (Maybe needed to change also other properties)?
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Apr 30, 2009
I'm facing a major problem with a Deployment Project I created to install one of my applications.I am using the ENGLISH IDE of the Visual Studio 2008 - even though my end users will have German environments. This is why I set the
Localization = German
Property in the Deployment Project's Properties. The UI of the generated setup is German, so all's fine there. However, the setup installs the ENGLISH .Net Framework. I have not found any way around this.The problem are at least twofold:
1. An English Framework on a German PC might cause instabilities.
2. It's a big flaw to see UI inconsistencies (i.e. the UI and Setup of the application is German while the NET Framework shows certain elements in English, e.g. the DisplayName property of cultures)how can I get the project to install the localized .NET Framework?
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Dec 28, 2009
In vb.net 2008, when I start a new project, it defaults to "Enable Application Framework." I add the following code to a button click handler to the main form in the new project:
Dim k As Integer
Dim s As String
For k = 1 To 5000000
s = Mid(s & k, 1, 30)
Next k
End Sub
Then, when I try to break execution to debug using the pause button, I get the message "No symbols are loaded for any call stack frame. The source code cannot be displayed." If I uncheck the "Enable Application Framework" project option, it breaks and debugs properly. (This also happens with other code not just this example).Is there a way to disable the Application Framework by default in a new project?Is there a setting that will allow a project with Application Framework enabled to break and debug? Did I mangle the installation? This is a recent VS2008 installation. Is there some option I should have selected during installation?
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Jun 4, 2010
I am attempting to publish a project I have just finished on a DVD. The problem I have is a lot of the computers this project will land on, have no internet capability.
How then do I get things loaded on their computers such as "MS .Net Framework 4 Client Profile" and the Powerpack dll?
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May 21, 2010
I am work on VB.net 2003 Framework 1.1 for last 3.5 years in windows Application.We are currently migrating to VB.net 2008 framework 3.5, but i don't know about the features which related to ADO.net and which is important to performance. I know linq to SQL but our architecture is made in .net 2003 so we should follow this.Any features which is very important to enhance the performance?
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Nov 13, 2009
I unfortunately downloaded and installed Visual Studio 2010 and upgraded all my programs to .Net 4. I am really unhappy with the way 2010 runs. My computer keeps locking up for hours, programs take a long time to compile... Those are a couple of major issues.
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Mar 2, 2009
I thought would be a simple google search but apparently I am not searching correctly - or something...
Does anyone know if I can do this? I would like to start working with 3.5 however all the projects I am doing are still in 2.0
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Dec 22, 2010
I am developing a plugin into a third party control. They ship a SDK dll with their application to allow you to do this. However I am writing the plugin using version 1.1.0.0 of their SDK, but when trying to run the application on a clients machine that has a new version of the software the SDK version is 1.4.0.0 and my app throws the following error:
System.IO.FileLoadException: Could not load file or assembly 'MyDll.dll, Version=1.1.0.0, Culture=neutral, PublicKeyToken=764d581291d764f7' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)
When the dll is referenced into Visual Studio I have changed the Specific Version property to false, however this has not made any difference. The dll is not reference from GAC.Is there a way that I can tell my application to just use the version of dll that is on the users machine? I have checked with the 3rd party vendor and the functionality that I am using has not changed in any of the versions as they use a back-ward compatibility approach to their software.
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Dec 20, 2010
Public Class ExtendedDateTimePicker Inherits DateTimePicker
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Jun 10, 2009
I have a dataset that I export to xml (using ds.WriteXml) and then use an instance of Microsoft.Office.Interop.Excel.Application to open and manipulate the xml data, then save it as an .XLS file.I have office 2007 (why don't they have help/about in an easy to find place... man I hate those stupid office ribbons and the person who developed them...)Anyway, this code works fine for me. But when I put this on a machine that has office 2003 installed, it crashes.So, what do I need to install, reference, buy, etc. so that I can do the same thing on machines that have 2003 (or before) installed? No, I can't install office 2003 (my first thought).
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Jun 22, 2009
I have an application that uses a Microsoft DLL (Microsoft.ComponentStudio.ComponentPlatformImplementation.dll) which is used for OS deployment and accessing the catalog files. Version 6.0.0.0 is specific to the Windows Server 2008 catalog files. The newer version 6.1.0.0 is specific to Windows Server 2008 R2 catalog files. Attempting to access a catalog file with the incorrect version results in an exception.
My application (VB.NET using VS2005) needs to be able to access either version of these catalogs - I'd be happy with two executables (one for each catalog version) but obviously I don't want to maintain two sets of source code for each. Specifying both sets of DLLs in the project reference is not possible as the DLL names are identical. I'd rather not have to manually add and remove the DLL references each time I want to a build. As far as I know the interfaces etc are effectively identical between the two.
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May 10, 2012
Is there possible to built application which is automating something with some cain of interejs that provide to switch any version of excel? I just want to built universal code for any cain of excel 2000/2003/2007/2012 and just could switch in code if u know what I mean..
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Sep 7, 2011
Any best practices on how to deal with different versions of base classes.We have made significant changes to the base class but still have lots of code inheriting from the old base class. Could you recommend how we introduce new base class.We'd like all new code to use the new base class. But, we would like the option to have old code still inherit from old base class so we have time to switch and test old classes with new base class.
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