SiteMapNode.Clone Metodo

Definizione

Crea un nuovo nodo che è una copia del nodo corrente.Creates a new node that is a copy of the current node.

Overload

Clone()

Crea un nuovo nodo che è una copia del nodo corrente.Creates a new node that is a copy of the current node.

Clone(Boolean)

Crea una nuova copia del nodo corrente, con la possibilità di duplicare tutti i nodi padre e i nodi predecessore del nodo corrente.Creates a new copy that is a copy of the current node, optionally cloning all parent and ancestor nodes of the current node.

Clone()

Crea un nuovo nodo che è una copia del nodo corrente.Creates a new node that is a copy of the current node.

public:
 virtual System::Web::SiteMapNode ^ Clone();
public virtual System.Web.SiteMapNode Clone ();
abstract member Clone : unit -> System.Web.SiteMapNode
override this.Clone : unit -> System.Web.SiteMapNode
Public Overridable Function Clone () As SiteMapNode

Restituisce

Nuovo nodo che è una copia del nodo corrente.A new node that is a copy of the current node.

Commenti

Chiama il Clone metodo con il parametro impostato su false.Calls the Clone method with the parameter set to false. Vengono copiate Titlele Urlproprietà Descriptionprovider, Key ,, e.The provider, Title, Url, Description, and Key properties are copied. Le Roles raccolte Attributes e vengono copiate in nuove raccolte.The Roles and Attributes collections are copied to new collections. I nodi predecessore e figlio non vengono clonati.Ancestor and child nodes are not cloned.

Vedi anche

Clone(Boolean)

Crea una nuova copia del nodo corrente, con la possibilità di duplicare tutti i nodi padre e i nodi predecessore del nodo corrente.Creates a new copy that is a copy of the current node, optionally cloning all parent and ancestor nodes of the current node.

public:
 virtual System::Web::SiteMapNode ^ Clone(bool cloneParentNodes);
public virtual System.Web.SiteMapNode Clone (bool cloneParentNodes);
abstract member Clone : bool -> System.Web.SiteMapNode
override this.Clone : bool -> System.Web.SiteMapNode
Public Overridable Function Clone (cloneParentNodes As Boolean) As SiteMapNode

Parametri

cloneParentNodes
Boolean

true per duplicare tutti i nodi padre e i nodi predecessore del nodo corrente; in caso contrario, false.true to clone all parent and ancestor nodes of the current node; otherwise, false.

Restituisce

Nuovo nodo che è una copia del nodo corrente.A new node that is a copy of the current node.

Esempi

Nell'esempio di codice seguente viene illustrato come chiamare Clone il metodo per creare un nodo della mappa del sito duplicato dal nodo corrente.The following code example demonstrates how to call the Clone method to create a duplicate site map node from the current node. Il ExpandForumPaths metodo viene registrato per gestire l' SiteMapResolve evento.The ExpandForumPaths method is registered to handle the SiteMapResolve event. Usa il Clone metodo per creare una copia di lavoro del nodo della mappa del sito corrente, modificare gli attributi in base ai dati di personalizzazione e restituire la copia di lavoro.It uses the Clone method to create a working copy of the current site map node, modify attributes based on personalization data, and return the working copy.

private void Page_Load(object sender, EventArgs e)
{
    // The ExpandForumPaths method is called to handle
    // the SiteMapResolve event.
    SiteMap.SiteMapResolve +=
      new SiteMapResolveEventHandler(this.ExpandForumPaths);
}

private SiteMapNode ExpandForumPaths(Object sender, SiteMapResolveEventArgs e)
{
    // The current node represents a Post page in a bulletin board forum.
    // Clone the current node and all of its relevant parents. This
    // returns a site map node that a developer can then
    // walk, modifying each node.Url property in turn.
    // Since the cloned nodes are separate from the underlying
    // site navigation structure, the fixups that are made do not
    // effect the overall site navigation structure.
    SiteMapNode currentNode = SiteMap.CurrentNode.Clone(true);
    SiteMapNode tempNode = currentNode;

    // Obtain the recent IDs.
    int forumGroupID = GetMostRecentForumGroupID();
    int forumID = GetMostRecentForumID(forumGroupID);
    int postID = GetMostRecentPostID(forumID);

    // The current node, and its parents, can be modified to include
    // dynamic querystring information relevant to the currently
    // executing request.
    if (0 != postID)
    {
        tempNode.Url = tempNode.Url + "?PostID=" + postID.ToString();
    }

    if ((null != (tempNode = tempNode.ParentNode)) &&
        (0 != forumID))
    {
        tempNode.Url = tempNode.Url + "?ForumID=" + forumID.ToString();
    }

    if ((null != (tempNode = tempNode.ParentNode)) &&
        (0 != forumGroupID))
    {
        tempNode.Url = tempNode.Url + "?ForumGroupID=" + forumGroupID.ToString();
    }

    return currentNode;
}
Private Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)

    ' The ExpandForumPaths method is called to handle
    ' the SiteMapResolve event.
    AddHandler SiteMap.SiteMapResolve, AddressOf Me.ExpandForumPaths

End Sub

Private Function ExpandForumPaths(ByVal sender As Object, ByVal e As SiteMapResolveEventArgs) As SiteMapNode
    ' The current node represents a Post page in a bulletin board forum.
    ' Clone the current node and all of its relevant parents. This
    ' returns a site map node that a developer can then
    ' walk, modifying each node.Url property in turn.
    ' Since the cloned nodes are separate from the underlying
    ' site navigation structure, the fixups that are made do not
    ' effect the overall site navigation structure.
    Dim currentNode As SiteMapNode = SiteMap.CurrentNode.Clone(True)
    Dim tempNode As SiteMapNode = currentNode

    ' Obtain the recent IDs.
    Dim forumGroupID As Integer = GetMostRecentForumGroupID()
    Dim forumID As Integer = GetMostRecentForumID(forumGroupID)
    Dim postID As Integer = GetMostRecentPostID(forumID)

    ' The current node, and its parents, can be modified to include
    ' dynamic querystring information relevant to the currently
    ' executing request.
    If Not (0 = postID) Then
        tempNode.Url = tempNode.Url & "?PostID=" & postID.ToString()
    End If

    tempNode = tempNode.ParentNode
    If Not (0 = forumID) And Not (tempNode Is Nothing) Then
        tempNode.Url = tempNode.Url & "?ForumID=" & forumID.ToString()
    End If

    tempNode = tempNode.ParentNode
    If Not (0 = ForumGroupID) And Not (tempNode Is Nothing) Then
        tempNode.Url = tempNode.Url & "?ForumGroupID=" & forumGroupID.ToString()
    End If

    Return currentNode

End Function

Commenti

Se il cloneParentNodes parametro è true, il Clone metodo clona in modo ricorsivo tutti i nodi predecessori diretti e li associa al nodo clonato corrente.If the cloneParentNodes parameter is true, the Clone method recursively clones all direct ancestor nodes and associates them with the current cloned node. I nodi figlio non vengono clonati.Child nodes are not cloned.

Le Roles raccolte Attributes e vengono applicate alle nuove raccolte.The Roles and Attributes collections are applied to new collections.

Vedi anche

Si applica a