C# component autocomplete

When I’m editing codes in C# components the autocomplete isn’t functioning. I have referenced the assemblies and imported the related library in the code. I wonder if there is anything else I need to setup? Thanks.!


Change the using DB = Autodesk.Revit.DB; to using Autodesk.Revit.DB; and it seems like the autocomplete works.

Screen Shot 2021-04-13 at 12.25.06 PM