问题
I'm using ClickOnce to deploy my application. When the app runs the first time, if a db doesn't exist, it creates one.
Problem is, when I update, it removes the local database. Is there a way to tell it to ignore it?
回答1:
I imagine you're putting it in the applications directory... don't!
Put it in Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData or Environment.SpecialFolder.LocalApplicationData).
回答2:
Don't include the database in the deployment. Implement your own db creation (using script) when the database isn't present.
回答3:
In the project's Publish options, under Application Files, is the database file's Publish status set to Data File?
来源：https://stackoverflow.com/questions/1690444/clickonce-deletes-my-local-database-when-it-updates-how-not-to