public DocumentChangedEventArgs(
Infragistics.Documents.RichText.RichTextDocument oldDocument,
Infragistics.Documents.RichText.RichTextDocument newDocument
)
'宣言
Public Function New( _
ByVal oldDocument As Infragistics.Documents.RichText.RichTextDocument, _
ByVal newDocument As Infragistics.Documents.RichText.RichTextDocument _
)