A value representing the maximum number of items that will be displayed in
a ComboBoxTool's dropdown before a vertical scroll bar appears. By default, 8.
Remarks
If this property is modified while the ComboxBox is open (dropped down), the dropdown rectangle will not be modified. The new value will be used the next time the combo box opens. Likewise, adding items to the ComboBoxTool after the dropdown has opened will not modify the dropdown zone's size until the dropdown is reopened.
Requirements
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2