How to handle primay key,columns modification in entity framework

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Hi frends,
How to handle primay key,
1. if u added a new column in primary key[compisote key],
how this get affected in edms/code.
2.if a new column modification happend in db, how to handle in ef, code

please help learn in this.

Posted 14-Jun-15 22:31pm

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Andy Lanng 15-Jun-15 4:45am

This is why I never use composite primary keys. I always use an int identity(1,1) which is auto-updated. Can you use a unique key like this? It is much easier. You can still have unique keys that are not your primary key.

Tomas Takac 15-Jun-15 6:10am

If you need to change the PK something is wrong. What you have there is probably the business key. You should use identity as Andy suggested. If you wish you can create a unique constraint in database for your business key. But don't use it as PK.

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