[entity-framework] How should I edit an Entity Framework connection string?

Follow the next steps:

  1. Open the app.config and comment on the connection string (save file)
  2. Open the edmx (go to properties, the connection string should be blank), close the edmx file again
  3. Open the app.config and uncomment the connection string (save file)
  4. Open the edmx, go to properties, you should see the connection string uptated!!

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