ComboBoxFeatures
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Demonstrates basic features of C1ComboBox. 

Demonstrates DropDownStyle property in action.
- Default - text of C1ComboBox can be edited using keyboard.
- DropDownList - new values can be picked from drop down list,
but text part is not editable.

How to bing the drop down list to:
- enum;
- array of strings;
- to a BindingSource

How to control drop down form size using MinimumSize and MaximumSize properties.