I know my Question is little bit basic but have to ask about this:
i have my website build in Visual Studio 2008 with .Net framework 3.5
that site is hosted on my server.
now because of some specific reason i have to install framework 4.0 to the server.
and i just want to know that my site will be okk with it or not.
I mean if i change my framework from 3.5 to 4.0 then is there some changes i should make to my site or that site will run fine as before.
You should also change Framework Version in the application pool of your WebSite.
Basically, remember that Framework version != CLR Version.
In your case, .NET Framework 3.5 = CLR 2.0 + (C# 3.0 | VB9)
.NET Framework 3.5 and 4.0 have different CLR Versions and can be installed side by side on same machine.
That means your site will not see any issues.
There is no problem installing the framework 4 on the server.
Your site should be fine as long as you don't change the target framework on the IIS appPool.
You can have all the frameworks installed on the same machine.
Related
I have a big application made in ASP.NET MVC using .NET 5.
We wanted to test the feasibility and the possibility to bring it to .NET 6.
Usually, but not always these kind of operations are mostly painless because you just need to upgrade project framework to from .NET 5 to .NET6 (and vs2019 to vs2022)
Why I can run a web application built with .NET 6 in a server with .NET 5 installed?
Now, I did that upgrade, and to test it, I deployed our application to a test IIS server we have where the application is already up and running, with these installed, which are all part of Microsoft .NET 5.0.6 Hosting Bundle:
-Microsoft .NET 5.0.6 - Windows Server Hosting
-Microsoft .NET Runtime 5.0.6 both x86 and 64
-Visual C++ Redistributables
I then deployed the application with dotnet build command in release mode and deployed on it and to my surprise.... IT WORKED
I was quite sure I had to install .NET 6 hosting bundle or something, but I didn't.
Why?
I remember on the other .NET Framework projects, that if you made a project for a certain version of .NET Framework, but in your code you only used functionalities of the old ones, the project build would run without the need to install the new .NET Framework version.
Example:
I create a Console application which has targetframework "C# 9.0 released with .NET 5.0"
but in the code I don't use any of the new constructs and syntax in c# 9.0 but all the code uses C#8.0 constructs, I could run it on a machine with .NET Core 3.0 because it doesn't use any of the new constructs.
This is what is happening?
It means that I have an application with .NET 6 framework but in reality the server is not upgraded and is running with .NET 5 just because in the code I didn't use any of the C#10 new constructs and syntax?
Thanks
We recently need to upgrade our build server from Windows server 2008 to 2016. Because 08 is fading out
As we all know, Windows Server 2016 is installed with .NET Framework 4.6 and from https://learn.microsoft.com/en-us/dotnet/framework/install/on-windows-10
You can only have one version of the .NET Framework 4.x installed on your machine.
You cannot install an earlier version of the .NET Framework on your machine if a later version is already installed.
The case is, we have many projects using
.NET 4.0 with EF 4.4.0.0
.NET 4.5 with EF 5.0.0.0
And some classes such as System.ComponentModel.DataAnnotations.Schema.ColumnAttribute had moved from EF to .NET from EF 4.4.0.0 to .NET 4.5 along the upgrade.
Therefore, missing .NET 4.0 results in:
error CS0433: The type
'System.ComponentModel.DataAnnotations.Schema.ColumnAttribute' exists
in both ...\workspace\....\EntityFramework.dll and
...\Windows\Microsoft.NET\assembly\GAC_MSIL\System.ComponentModel.DataAnnotations\v4.0_4.0.0.0__31bf3856ad364e35\System.ComponentModel.DataAnnotations.dll'
because it trys to use .NET 4.5 with EF 4.4.0.0.
My question is: we don't have resources to ask QA teams to have a full test on every aspects of our applications, but we do need to use the new build server. Do you guys have any other idea / thought thats worth trying so that the it can build?
I have an application built with .net 4.0 and uses WPF
My users have Windows 7 with default .net 3.5 installed.
My application cannot be downgraded to .net 3.5 and I want to avoid users from going through the process of downloading and installing .net 4.0 which is about 40MB (Even with silent install).
Since my application is a small one, is there a way to deploy it with only the required .net 4.0 libraries? and thus avoiding the installation of the entire .net 4.0 framework
If this is not possible, is there a way to execute the .net 4.0 app in a .net 3.5 environment?
If this is not possible, is there a way to execute the .net 4.0 app in a .net 3.5 environment?
No. Basically you really need to get the environments aligned. You say your application cannot be downgraded to .NET 3.5 - presumably that's because you're using something which is specific to .NET 4.0. It stands to reason that you can't then execute that in an environment which doesn't have .NET 4.0.
You need to decide which is more painful - changing your app to target .NET 3.5, or asking your users to install .NET 4.0.
I have created a simple c# console application with .net framework 2.0 that uses MySql. What steps should I do in order to get the program run on another computer(Windows Server 2008)?
I already have MS .Net framework Clent Profile and MS .Net framework Clent Profile Extended installed.
Should I install .net framework 2.0 Service pack too on the other pc?
Thanks.
You just need .Net Framework 2.0 or later to be installed on the machine.
It would would be better to make an installer.
Make sure you have .Net framework 2.0 installed on the computer. Also make sure you have the .Net dlls required for making connection. If your application is going to use the local machine as MySQL server then, you may have to intall MySQL on the client machine as well, or you can make an installer with MySQL installation included. You can use InnoSetup or you may check out the following thread Deploy MySQL Server + DB with .Net application
Environment - .Net Framework.
Version - Same as one or higher in which you app is targeted.
Why i said no particular version number because what if you app is in 4.0 and you have 2.0 installed?
That's why same version or higher.
Disappointingly, the members page for HtmlForm 2.0 is missing...
My research seems to indicate that HtmlForm.Action is a property that was added in .Net Framework 3.5. However, I'm using VS2005 and my reference to System.Web (the namespace HtmlForm is under) is to a .Net Framework 2.0 runtime version.
Further, my IIS status information also indicates I am using .Net Framework 2.0, when I force an error on my local IIS and read it. Despite this, I am able to use form1.Action successfully...but only on my local IIS.
When I try it on vms and external servers, I get [MissingMethodException: Method not found: 'System.String System.Web.UI.HtmlControls.HtmlForm.get_Action()'.] errors.
So, my question:
1) Why does it work on my local IIS? Does the fact that I have the 3.5 framework installed make a difference, here?
2) Why does it not work on other IIS? (I think this is because it's not part of .Net 2.0).
I guess I just figure that if something is running on .Net Framework 2.0, the presence of 3.5 should not make a difference. Or maybe there's some other cause for these results.
That's right in IIS you will see .NET Framework 2.0 even when you are using .NET 3.5. It happend because Microsoft .NET Framework 3.5 was built incrementally upon .NET Framework 2.0 and 3.0.
1) It doesn't work on the server because .NET 3.5 is not installed. You have created the .NET 3.5 project in the Visual Studio, so .NET 3.5 must be installed on the server.
2) See 1.