Having worked through the Coded UI Tests example this all works fine. However, after making changes and rebuilding, the changes made to UIMap.Designer.cs are lost. Specifically:

1. Code to launch application which was removed from EnterDataAndClickAdd method gets reinstated.

2. Enhanced Assertion Reporting strings added to Assert statements are removed.

What is the correct way to implement these changes?

Hi David,
Though i could not understand the exact scenario you are facing but. To override any value in UIMap.Designer.cs Please access the value in UIMap.cs and then you can override the values and the value will persist.