Specifies the DropDown List height in pixels. If the height of the List content is more than property value, the Slider is displayed automatically. Default value is 140.
[C#]
myComboBox.ListHeight = 200;
[Visual Basic]
myComboBox.ListHeight = New System.Web.UI.WebControls.Unit(200)
APNSoftComboBox Class | APNSoft.WebControls Namespace