'宣言 Public MustInherit Class C1DocumentSourceFeatures
'使用法 Dim instance As C1DocumentSourceFeatures
public abstract class C1DocumentSourceFeatures
'宣言 Public MustInherit Class C1DocumentSourceFeatures
'使用法 Dim instance As C1DocumentSourceFeatures
public abstract class C1DocumentSourceFeatures
System.Object
C1.WPF.Document.C1DocumentSourceFeatures