Represents a split button control.
The Split Button is a composite control with which the user can select a default value bound to a primary button, or select from a list of mutually exclusive values displayed in a drop-down list bound to a secondary button.
The SplitButton features a dropdown that allows the user to pick one of the listed options.
The SplitButton control can be configured to show the dropdown button horizontally or vertically on the control.
The Repeat functionality allows a SplitButton to raise it's Click event repeatedly from the time it is pressed until it is released.