XPathNavigator.CanEdit Propriété

Définition

Espace de noms:

System.Xml.XPath

Assembly:

System.Xml.ReaderWriter.dll

Source:

XPathNavigator.cs

Obtient une valeur indiquant si le XPathNavigator peut modifier les données XML sous-jacentes.

public:
 virtual property bool CanEdit { bool get(); };

public virtual bool CanEdit { get; }

member this.CanEdit : bool

Public Overridable ReadOnly Property CanEdit As Boolean

Valeur de propriété

Boolean

trueXPathNavigator si peut modifier les données XML sous-jacentes ; sinon, false.

Exemples

L’exemple suivant utilise la CanEdit propriété pour afficher les CanEdit valeurs des XPathDocument classes et XmlDocument .

XPathDocument^ readOnlyDocument = gcnew XPathDocument("books.xml");
XPathNavigator^ readOnlyNavigator = readOnlyDocument->CreateNavigator();

XmlDocument^ editableDocument = gcnew XmlDocument();
editableDocument->Load("books.xml");
XPathNavigator^ editableNavigator = editableDocument->CreateNavigator();

Console::WriteLine("XPathNavigator.CanEdit from XPathDocument: {0}", readOnlyNavigator->CanEdit);
Console::WriteLine("XPathNavigator.CanEdit from XmlDocument: {0}", editableNavigator->CanEdit);

XPathDocument readOnlyDocument = new XPathDocument("books.xml");
XPathNavigator readOnlyNavigator = readOnlyDocument.CreateNavigator();

XmlDocument editableDocument = new XmlDocument();
editableDocument.Load("books.xml");
XPathNavigator editableNavigator = editableDocument.CreateNavigator();

Console.WriteLine("XPathNavigator.CanEdit from XPathDocument: {0}", readOnlyNavigator.CanEdit);
Console.WriteLine("XPathNavigator.CanEdit from XmlDocument: {0}", editableNavigator.CanEdit);

Dim readOnlyDocument As XPathDocument = New XPathDocument("books.xml")
Dim readOnlyNavigator As XPathNavigator = readOnlyDocument.CreateNavigator()

Dim editableDocument As XmlDocument = New XmlDocument()
editableDocument.Load("books.xml")
Dim editableNavigator As XPathNavigator = editableDocument.CreateNavigator()

Console.WriteLine("XPathNavigator.CanEdit from XPathDocument: {0}", readOnlyNavigator.CanEdit)
Console.WriteLine("XPathNavigator.CanEdit from XmlDocument: {0}", editableNavigator.CanEdit)

L'exemple prend le fichier books.xml comme entrée.

<?xml version="1.0" encoding="utf-8" ?>   
<bookstore>  
    <book genre="autobiography" publicationdate="1981-03-22" ISBN="1-861003-11-0">  
        <title>The Autobiography of Benjamin Franklin</title>  
        <author>  
            <first-name>Benjamin</first-name>  
            <last-name>Franklin</last-name>  
        </author>  
        <price>8.99</price>  
    </book>  
    <book genre="novel" publicationdate="1967-11-17" ISBN="0-201-63361-2">  
        <title>The Confidence Man</title>  
        <author>  
            <first-name>Herman</first-name>  
            <last-name>Melville</last-name>  
        </author>  
        <price>11.99</price>  
    </book>  
    <book genre="philosophy" publicationdate="1991-02-15" ISBN="1-861001-57-6">  
        <title>The Gorgias</title>  
        <author>  
            <name>Plato</name>  
        </author>  
        <price>9.99</price>  
    </book>  
</bookstore>  

Remarques

La CanEdit propriété a des valeurs différentes en fonction des trois implémentations différentes de l’interface IXPathNavigable dans .NET. Les CanEdit valeurs des XPathNavigator objets créés par chaque implémentation sont répertoriées dans le tableau suivant.

Implémentation IXPathNavigable	Valeur CanEdit
XPathDocument	false
XmlDocument	true