How to prevent SQL Compact DB to be erased?

I'm developing an applciation using SQL Compact database in Visual Studio 2008. When I start the application and run the process, the data is being loaded into database for few 开发者_JS百科hours worth of few tens of megabytes. However, when I quite debugging, change something in code (not in DB structure), run the project again, the database is erased.

Does anyone know how to prevent this behavior? I need the data to stay in DB to test on it.

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Did you add the database file to your project? Select it and in the Properties window change its Copy property from Always to If Newer.