如何处理 Dbcontext 和 Dbset？

Question

I work with one application connected with 3 databases same structure just the data inside different. I used WinForms with entity framework 6 .Net not Core when user login he choose the database. how I made function to send dbcontext or dbset from chosen database? for example I have a Site table have same columns and same names after user login need to fill datagridview with data from database that user choose. I did it but with duplicate the code for every database :(

Answer 1

If the databases are truly identical, then you should only need to use one of three different connectionstrings when initializing the dbcontext. Maybe have the first one as the default one for entity framework for building models etc.

Here is an example of how to set the connectionstring in code: Entity Framework 6 set connection string in code

Good luck!!