How to enable auto-increment with Sql compact & C#

Question

I'm using C# 2010 Express.

I have created a SQL Server CE database file ( .sdf ) then created Information table and ID, Name, City columns with Database Explorer. I want to save names and city user will write to the form. The auto-increment option is disabled in Database explorer and Properties windows. When I'm saving something to that database i must change the ID manually, how can I make ID column auto-increment enabled?

Answer 1

SQL CE有一种简单的方法：

ALTER TABLE TableName ALTER COLUMN ColumnName IDENTITY (/*seed*/1, /*increment*/1)