Advanced User Interface Controls and Components
Specifies the direction at which the dropdown list will open.
An IntegralUIDirection value. The default is Below, stating that dropdown list will appear below the DropDownButton.
The following values are acceptable:
This enumeration allow combinations. For example, you can have a setting: Right | Above, which means that dropdown list will appear on right side above the DropDownButton.
Supported in: v1.0.