Codebase Questions

The .NET Core version for Angular projects is 2.2 - the reason for this can be found in this thread:

It will be upgraded once Microsoft release stable OData for .NET Core 3.x. - most probably in the next months.

There is no search box out-of-the-box for the DataGrid component however you can create such functionality in few clicks.

The built-in Add button for the DataGrid cannot be moved however you can set AllowAdd to false and place external button with same functionality anywhere you want.