Only set this property to false if you use complex layout in the custom C1Scheduler control template and found problems with laying out appointments at runtime. In such case AppointmentsCoverPane will use more slow algorithm to determine what elements should be used to layout appointments over them.

'Declaration
 
Public Property UseSimpleLayout As Boolean

'Usage
 
Dim instance As AppointmentsCoverPane
Dim value As Boolean
 
instance.UseSimpleLayout = value
 
value = instance.UseSimpleLayout

public bool UseSimpleLayout {get; set;}