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Northglenn, Colorado, United States
I'm primarily a BI Developer on the Microsoft stack. I do sometimes touch upon other Microsoft stacks ( web development, application development, and sql server development).

Tuesday, November 06, 2007

Upgrading from .Net Framework 1.0 to 3.5

  • First upgrade your code from .NET 1.0 to .NET 1.1 using Visual Studio 2003. It has a project upgrade tool with some assistance.

  • Next use Visual Studio 2008 to upgrade the project from .NET 1.1 to .NET 2.0. The upgrade wizard here does not change your code. It will show you warnings for things that you have to change but you will have to go change them. You also have to fix all your new compile errors and do a full retest.

  • Once you're at .NET 2.0 the migration to .NET 3.0 and .NET 3.5 is easy. It's primarily just about using the new features available in these new versions of the framework. All your existing code should work fine, in fact you most likely wont even need to recompile.

The .NET 1.1 -> .NET 2.0 breaking changes are detailed here: http://msdn2.microsoft.com/en-us/netframework/aa570326.aspx

Here's a helpful blog entry from Brad Abrams on upgrade experience:

Here's another great post on this topic deom Daniel Moth:http://www.danielmoth.com/Blog/2007/10/migrating-from-net-framework-v1x-to.html

- source: http://blogs.msdn.com/pandrew/archive/2007/10/25/how-to-upgrade-from-net-framework-1-0-to-net-framework-3-5.aspx

So, I guess they make the transition from 1.0 to 3.5 look easy. Just hope I never have to do it. <^_^>


Asim said...

umm seems ok for me ... but in this all conversion from ASP.NET Framework version 1.0 application to use the ASP.NET Framework version 3.5, is it possible without recompiling the application through the process ?

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Ian Preston said...

From my experience the most program factor is that after automated transformation you have to personally set each designs' focus on structure. That's the primary problems if you have a big variety of tasks.