使用实体框架增加一列值

Question

I have a column named Order - Int in a table. I'm using Entity Framework. I need to Increase a value when I insert a row. ie

Order 
1 
2 
3 
4

When I insert a row with order 2 then all the columns greater than 1 has to increase by one so that

Order 
1 
2 (New) 
3 
4 
5

And the same has to be reversed when I delete the row with order 2. Also consider on updating case.

Is there an efficient way to achieve this?

Answer 1

I'm not sure about EF, unless to use direct SQL Command execution, but in SQL you can do this way:

DBCC CHECKIDENT (mytable, RESEED, 0)

I believe it's better way to use trigger for this purpose, instead of C# code.