Migration from ASP.Net 1.1 to ASP.Net 4.0

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Hi,

We have to migrate ASP.Net 1.1 application to ASP.Net 4.0. Our plan it to migrate in 3 stages ,
- 1.1 to 2.0
- 2.0 to 3.5
- 3.5 to 4.0

Can't we migrate directly from 1.1 to 4.0 to save effort or can we skip any of the above steps to save effort.

Please send answer with the links or about best practices followed while migration.

Thanks in advance.

Posted 3-Oct-10 16:58pm

Narsimlu Keshagouni

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2 solutions

Solution 1

There are a number of resources available for migrating from 1.1 to 2.0. Have you even looked? From 2.0 to 3.5 there isn't much of an issue.
However, if you have code from 1.1 and want to move to 4.0 the best advice would be to rewrite the application. There are so many new advances that could reduce the code and make it more extensible and maintainable and improve performance.

Posted 3-Oct-10 17:35pm

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Narsimlu Keshagouni 3-Oct-10 23:38pm

Thanks for the reply. Yes, but the application took 3years to develop. It is in SOA, and we had contract with client to only migration. We don't have hours to rewrite. Any way we are planning to rewrite the presentation layer. But my question is can we skip any of the above steps like instead of 1.1 to 2.0, 2.0 to 3.5 and 3.5 to 4.0; can we do 1.1 to 2.0 and then 2.0 to 4.0?

[no name] 3-Oct-10 23:59pm

If it was started three years ago then you shouldn't have been using 1.1 in the first place. It was already outdated by three years at that time.

You can always simply compile the code against 4.0 and fix the errors that are generated, but again this will not take advantage of any techniques or advances that you should be using for an SOA application in the first place.

Narsimlu Keshagouni 4-Oct-10 1:25am

Sorry, it was started in 2005 ending.

Member 11788924 3-Jul-15 6:15am

Once look into below url... it will help you
https://msdn.microsoft.com/en-us/magazine/ff956194.aspx

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MalikRizwan · Accepted Answer · 2010-10-03T18:13:00

Solution 2

yes you can and actually you SHOULD SKIP.. there is no reason to go like this.
doing for 2.0 then moving to upper version.

why would you put too much extra effort when you can migrate to 4.0 directly.

Posted 3-Oct-10 18:13pm

MalikRizwan

Comments

Narsimlu Keshagouni 4-Oct-10 1:24am

Yes Malik, found one link - http://msdn.microsoft.com/en-us/magazine/ff956194.aspx. Thank you.