'宣言 Protected Overridable Sub OnBeforePagesClear()
'使用法 Dim instance As C1PrintDocument instance.OnBeforePagesClear()
protected virtual void OnBeforePagesClear()
'宣言 Protected Overridable Sub OnBeforePagesClear()
'使用法 Dim instance As C1PrintDocument instance.OnBeforePagesClear()
protected virtual void OnBeforePagesClear()