See Also Example Applies To Specifics
Returns or sets the number of lines in a command bar combo box control. The combo box control must be a custom control and it must be a drop-down list box or a combo box. Read/write Long.
Note An error occurs if you attempt to set this property for a combo box control that's an edit box or a built-in combo box control.
Remarks
If this property is set to 0 (zero), the number of lines in the control will be based on the number of items in the list.