'Declaration
Public Overloads Overrides Function CanConvertTo( _
ByVal As ITypeDescriptorContext, _
ByVal As Type _
) As Boolean
'使用法
Dim instance As CellRangeConverter
Dim context As ITypeDescriptorContext
Dim destinationType As Type
Dim value As Boolean
value = instance.CanConvertTo(context, destinationType)