I need to manage group membership. I'll select the group then I'll need a grid on the left that represents all people currently in the group. I then need a grid on the right representing all people available that are not in the group. In this middle, I need an Add and Remove button. The add button shouldn't be enabled unless the grid on the right has focus and a user is selected. The remove button should not be enabled unless the left grid has focus and a user is selected.
If you have an example of this type of functionality, can you please post a link. If not, some feedback on how I would go about this using a ASP.NET Core 2.2 components would be appreciated.