Issue description

The column type cannot be show in the Add Column window of the DataGridView
Related to #4908

Steps to reproduce

1. Clone current repo
2. Set "DemoConsole" as startup project and debug the project
3. Switch tab to "TabControl and TableLayoutPanel"
4. Try to add an Unbound column to DataGridView

Actual:
The column type is empty

Expected:
The column type show up