'Declaration
Protected Overloads Overridable Sub FireItemUpdated( _
ByVal As ISparkline, _
ByVal As String, _
ByVal As Object, _
ByVal As Object _
)
'使用法
Dim instance As ExcelSparklineGroup
Dim item As ISparkline
Dim propertyName As String
Dim oldValue As Object
Dim newValue As Object
instance.FireItemUpdated(item, propertyName, oldValue, newValue)