I'm using Microsoft Visual Studio 2010 and .NET4, but I would like to create application(Windows Form Application) that can be also run in .NET2. The reason is that I want it to be very easy to use and portable across many machines and not everybody has .NET4 installed.
Can I do it or do I need to install older version of Visual Studio? Is so what version is the best for most portable .NET app.
You can modify the target framework in the properties of the project:
You can select which .NET Framework version you want to target when you create a new project. If you want to change the framework of an existing project, do what Darin has illustrated.
Just modify the target framework by looking at the propeties of the solution you are working on.
I would highly advise you to target .NET 3.5 just based on the age of .NET 2.0.
.NET Framework 2.0 was attached to Visual Studio 2005.
By modifying the target framework is the way, but if you are thinking of portable maybe what you need is some kind of native code that works in every and/or most windows version.
Don't forget to delete redundant namespaces from your namespace list. For example LINQ...
Related
I am using Visual Studio 2010 and trying to use the Line class in System.Windows.Shapes.
Via this link I found out how it should be done (using the presentationframework.dll), but I can't find it anywhere. When I click References > add reference > .NET, it says
Filtered to .NET Framework 2.0
So I thought that I didn't have the up to date framework, but even after installing .NET framework 4.5, it still says that it is somehow filtered...
There must be a really simple solution that I'm not seeing, right?
You need to change the target framework of your project. Just because you install the framework doesn't mean your project is automatically using it.
Try to delete the references and add it again, check whether your project is using the same framework version.
You can download from Microsoft .NET Framework 4
I have a program in C# that was developed on a PC that has several of installed .NET frameworks, Service Packs, etc. How can I understand what are the minimal installation requirements in order to distribute the program to users? Should I start with a clean PC and test one-by-one .NET frameworks or is there a better approach?
Start by looking at the .NET version that your application is targeting.
If for example, you are targeting .NET 3.5 you will need to also include .NET 2.0
.NET 4.0 and 4.5 are self contained, so including earlier versions is not necessary for them.
You can check the version that you are targeting by going to the properties of your project (right click, properties in the solution explorer), clicking on the Build tab and looking for Target Framework
Microsoft recommends that you look for features that your application requires in the operating systems rather than look for which version of Windows you are targeting. So its better to list those out and tackle them one by one. I find this to be a bit overkill sometimes, but it does help once you get to logo certification.
check Target Framework in your Project Properties
Note :- Step for open project Solution
(Open Your Project in Visual Studio and then open solution explorer and Right click on Properties)
Some link to more Help you
1 : Retrieve Target Framework Version and Target Framework Profile from a .Net Assembly
2 : How to find the .NET framework version of a Visual Studio project?
I have a .NET application that I built in 4.5, which has references to a bunch of libraries that were built in 4.5, which themselves have references to 4.5, etc. A user group that I'm trying to distribute the application to is having problems running the executable because they have 4.0 installed; in particular, they're getting a MissingMethodException:
Method not found: 'System.Type System.Runtime.InteropServices.Marshal.GetTypeFromCLSID(System.Guid)'.
Because we may have trouble getting each user upgraded to 4.5 (as none of them have admin permissions on their machines and this would require a separate upgrade request for each user), I'm looking at finding an easy way to rebuild the project as 4.0. This seems to require that I rebuild every library and its referenced libraries in 4.0; is there an easier way to do this than going through each library one by one and building a 4.0 version? I'm thinking maybe like a one-click option for "Rebuild all referenced libraries in target framework" or something like that.
If you have dependencies on .Net 4.5 DLLs then you will need to also get .Net 4.0 versions of those if you want to successfully downgrade your project. A .Net project can only reference .Net DLLs up to the same version of .Net as the referencing assembly.
The easiest way to do this is to use something like NuGet to manage your dependencies. Note that when you change the target framework version of your project in VS you will need to uninstall and re-install dependencies with NuGet as NuGet does not automatically do this for you when you change the target framework version.
Of course if all the dependencies are to your own code and you aren't publishing this through a dependency management system like NuGet you will need to downgrade all your other code to .Net 4.0 as well
When I use Visual Studio, I right click on the project, change the framework, fix the References and recompile. Usually straight forward.
Please, have a look at this MSDN page to correctly switch your project to a lower target framework without problems! It is a little bit outdated for what concerns versions, but the process is the same described!
This is based on my experience. I had an application initially created in .net framework 4.5 but I wanted to convert it in .net framework 4.0. I created new project initially created 4.0 and then I did copy and paste of all the forms and controls of my previous application and it works. Framework 4.5 is using Aero2 and 4.0 is Aero... Good Luck :)
Sorry if its a stupid question. But I just wrote a tiny c# application and want to know which exact version of .net does my application requires .
Is there a way of knowing this , other than to uninstall and reinstalling all the .net versions on my PC.
my app btw is : http://www.ziddu.com/download/11874881/PerfectUpload.exe.html ( 14kb)
Thanks
In the VS IDE, right click on yourProjectName-->Properties-->Application-->Target Framework, and you will most likely see the framework version 3.5.
This application requires .NET 3.5 to run as it references System.Xml.Linq assembly and more specifically the XDocument class in the PostToImgur method.
You can specify the required .NET version in the project settings!
I'm currently using VS2005 Profesional and .NET 2.0, and since our project is rather large (25 projects in the solution), I'd like to try VS 2008, since its theoretically faster with larger projects.
Before doing such thing, i'd like to know if what I've read is true: can I use VS2008 in ".net 2.0" mode? I don't want my customers to install .net 3.0 or .3.5, I just want to install VS2008, open my solution and start working from there.
Is this possible?
P.D.: the solution is a c# Window Forms project.
Yes it's possible. In the project properties you can target different versions of the .Net Framework going back to .NET 2.0.
Upgrading to VS 2008 will upgrade your Solution file and you won't be able to go back to VS 2005 unless you have backed up your solution
yes, vs2008 can "target" a framework, but i think by default, if converting from vs2005 - vs2008 it just keeps it at framework 2.0
It is possible to have a 2.0 project in VS 2008. You would just target .NET Framework 2.0 under the project properties.
Your solution will have to be converted to a VS9 solution however.
Yes you can run 2.0 with VS2008. Be sure to select that when you convert, however. When converting a project, I mistakenly left in the ASP.NET 3.5 conversion, and then all new files contained references to Linq, so it was a little bit of a pain to switch back to 2.0 when I realized the mistake.
Yes, the feature that enables this is Visual Studio 2008 is called multi-targeting. See this link for more information. To use it you simply open the Properties for your Project, and select the Target Framework you want from the drop-down list on that page.
And bear in mind that all this stuff about the projects being compatible between 2005 and 2008 is NOT true for C/C++ projects.
I had absolutely no problems switching to VS2008. :) Multi-targeting worked without a hitch.