property Editor.PartialCheck as Boolean
Retrieves or sets a value that indicates whether the associated check box has two or three states.

TypeDescription
Boolean A boolean expression that  indicates whether the associated check box has two or three states.

Specifies whether the editor's check box has two ( unchecked, checked ) or three ( unchecked, checked, partial-checked ) states. Use the HasCheckBox property to assign a check box to the control. Use the CheckState property to change the state of the control's check box.

The following sample assigns a check box to a Mask editor:

With Editor1
    .EditType = EXEDITORSLibCtl.Mask
    .Mask = "####"
    .MaskChar = Asc("0")
    .HasCheckBox = True
    .PartialCheck = True
    .Value = 10
End With