XObject.RemoveAnnotations 方法

定義

命名空間:

System.Xml.Linq

組件:

System.Xml.XDocument.dll

多載

RemoveAnnotations(Type)	從這個 XObject 中移除指定之類型的註釋。
RemoveAnnotations<T>()	從這個 XObject 中移除指定之類型的註釋。

RemoveAnnotations(Type)

來源:

XObject.cs

從這個 XObject 中移除指定之類型的註釋。

public:
 void RemoveAnnotations(Type ^ type);

public void RemoveAnnotations (Type type);

member this.RemoveAnnotations : Type -> unit

Public Sub RemoveAnnotations (type As Type)

參數

type

Type

要移除的註釋類型。

範例

下列範例會建立具有四個批註的專案。 然後，它會使用這個方法來移除其中兩個方法。

public class MyAnnotation {  
    private string tag;  
    public string Tag {get{return tag;} set{tag=value;}}  
    public MyAnnotation(string tag) {  
        this.tag = tag;  
    }  
}  

class Program  
{  
    static void Main(string[] args)  
    {     
        XElement root = new XElement("Root", "content");  
        root.AddAnnotation(new MyAnnotation("T1"));  
        root.AddAnnotation(new MyAnnotation("T2"));  
        root.AddAnnotation("abc");  
        root.AddAnnotation("def");  

        Console.WriteLine("Count before removing: {0}", root.Annotations<object>().Count());  
        root.RemoveAnnotations(typeof(MyAnnotation));  
        Console.WriteLine("Count after removing: {0}", root.Annotations<object>().Count());  
    }  
}  

Public Class MyAnnotation  
    Private _tag As String  

    Property Tag() As String  
        Get  
            Return Me._tag  
        End Get  
        Set(ByVal Value As String)  
            Me._tag = Value  
        End Set  
    End Property  

    Public Sub New(ByVal tag As String)  
        Me._tag = tag  
    End Sub  
End Class  

Module Module1  
    Sub Main()  
        Dim root As XElement = <Root>content</Root>  
        root.AddAnnotation(New MyAnnotation("T1"))  
        root.AddAnnotation(New MyAnnotation("T2"))  
        root.AddAnnotation("abc")  
        root.AddAnnotation("def")  

        Console.WriteLine("Count before removing: {0}", root.Annotations(Of Object)().Count())  
        root.RemoveAnnotations(GetType(MyAnnotation))  
        Console.WriteLine("Count after removing: {0}", root.Annotations(Of Object)().Count())  
    End Sub  
End Module  

這個範例會產生下列輸出：

Count before removing: 4  
Count after removing: 2  

另請參閱

• LINQ to XML 概觀

RemoveAnnotations<T>()

來源:

XObject.cs

從這個 XObject 中移除指定之類型的註釋。

public:
generic <typename T>
 where T : class void RemoveAnnotations();

public void RemoveAnnotations<T> () where T : class;

member this.RemoveAnnotations : unit -> unit (requires 'T : null)

Public Sub RemoveAnnotations(Of T As Class) ()

類型參數

T

要移除的註釋類型。

範例

下列範例會建立具有四個批註的專案。 然後，它會使用這個方法來移除其中兩個方法。

public class MyAnnotation {  
    private string tag;  
    public string Tag {get{return tag;} set{tag=value;}}  
    public MyAnnotation(string tag) {  
        this.tag = tag;  
    }  
}  

class Program {  
    static void Main(string[] args) {     
        XElement root = new XElement("Root", "content");  
        root.AddAnnotation(new MyAnnotation("T1"));  
        root.AddAnnotation(new MyAnnotation("T2"));  
        root.AddAnnotation("abc");  
        root.AddAnnotation("def");  

        Console.WriteLine("Count before removing: {0}", root.Annotations<object>().Count());  
        root.RemoveAnnotations<MyAnnotation>();  
        Console.WriteLine("Count after removing: {0}", root.Annotations<object>().Count());  
    }  
}  

Public Class MyAnnotation  
    Private _tag As String  

    Property Tag() As String  
        Get  
            Return Me._tag  
        End Get  
        Set(ByVal Value As String)  
            Me._tag = Value  
        End Set  
    End Property  

    Public Sub New(ByVal tag As String)  
        Me._tag = tag  
    End Sub  
End Class  

Module Module1  
    Sub Main()  
        Dim root As XElement = <Root>content</Root>  
        root.AddAnnotation(New MyAnnotation("T1"))  
        root.AddAnnotation(New MyAnnotation("T2"))  
        root.AddAnnotation("abc")  
        root.AddAnnotation("def")  

        Console.WriteLine("Count before removing: {0}", root.Annotations(Of Object)().Count())  
        root.RemoveAnnotations(Of MyAnnotation)()  
        Console.WriteLine("Count after removing: {0}", root.Annotations(Of Object)().Count())  
    End Sub  
End Module  

這個範例會產生下列輸出：

Count before removing: 4  
Count after removing: 2  

另請參閱

• LINQ to XML 概觀