SiteMapNodeItem(Int32, SiteMapNodeItemType) Oluşturucu

Tanım

Ad Alanı:

System.Web.UI.WebControls

Bütünleştirilmiş Kod:

System.Web.dll

Belirtilen dizini ve SiteMapNodeItemTypekullanarak sınıfının yeni bir örneğini SiteMapNodeItem başlatır.

public:
 SiteMapNodeItem(int itemIndex, System::Web::UI::WebControls::SiteMapNodeItemType itemType);

public SiteMapNodeItem (int itemIndex, System.Web.UI.WebControls.SiteMapNodeItemType itemType);

new System.Web.UI.WebControls.SiteMapNodeItem : int * System.Web.UI.WebControls.SiteMapNodeItemType -> System.Web.UI.WebControls.SiteMapNodeItem

Public Sub New (itemIndex As Integer, itemType As SiteMapNodeItemType)

Parametreler

itemIndex

Int32

Denetimin Controls nesneyi izlemek için kullandığı koleksiyondaki SiteMapPath SiteMapNodeItem dizin.

itemType

SiteMapNodeItemType

Bunun temsil ettiği SiteMapNodeItem işlev türüSiteMapNode.

Örnekler

Aşağıdaki kod örneği, bir SiteMapNodeItem nesnenin nasıl oluşturulacağını gösterir. Bu kod örneği, sınıfı için SiteMapPath sağlanan daha büyük bir örneğin parçasıdır.

private void AddDropDownListAfterCurrentNode(SiteMapNodeItem item) {

    SiteMapNodeCollection childNodes = item.SiteMapNode.ChildNodes;

    // Only do this work if there are child nodes.
    if (childNodes != null) {

        // Add another PathSeparator after the CurrentNode.
        SiteMapNodeItem finalSeparator =
            new SiteMapNodeItem(item.ItemIndex,
                                SiteMapNodeItemType.PathSeparator);

        SiteMapNodeItemEventArgs eventArgs =
            new SiteMapNodeItemEventArgs(finalSeparator);

        InitializeItem(finalSeparator);
        // Call OnItemCreated every time a SiteMapNodeItem is
        // created and initialized.
        OnItemCreated(eventArgs);

        // The pathSeparator does not bind to any SiteMapNode, so
        // do not call DataBind on the SiteMapNodeItem.
        item.Controls.Add(finalSeparator);

        // Create a DropDownList and populate it with the children of the
        // CurrentNode. There are no styles or templates that are applied
        // to the DropDownList control. If OnSelectedIndexChanged is raised,
        // the event handler redirects to the page selected.
        // The CurrentNode has child nodes.
        DropDownList ddList = new DropDownList();
        ddList.AutoPostBack = true;

        ddList.SelectedIndexChanged += new EventHandler(this.DropDownNavPathEventHandler);

        // Add a ListItem to the DropDownList for every node in the
        // SiteMapNodes collection.
        foreach (SiteMapNode node in childNodes) {
            ddList.Items.Add(new ListItem(node.Title, node.Url));
        }

        item.Controls.Add(ddList);
    }
}

Private Sub AddDropDownListAfterCurrentNode(item As SiteMapNodeItem)

   Dim childNodes As SiteMapNodeCollection = item.SiteMapNode.ChildNodes

   ' Only do this work if there are child nodes.
   If Not (childNodes Is Nothing) Then

      ' Add another PathSeparator after the CurrentNode.
      Dim finalSeparator As New SiteMapNodeItem(item.ItemIndex, SiteMapNodeItemType.PathSeparator)

      Dim eventArgs As New SiteMapNodeItemEventArgs(finalSeparator)

      InitializeItem(finalSeparator)
      ' Call OnItemCreated every time a SiteMapNodeItem is
      ' created and initialized.
      OnItemCreated(eventArgs)

      ' The pathSeparator does not bind to any SiteMapNode, so
      ' do not call DataBind on the SiteMapNodeItem.
      item.Controls.Add(finalSeparator)

      ' Create a DropDownList and populate it with the children of the
      ' CurrentNode. There are no styles or templates that are applied
      ' to the DropDownList control. If OnSelectedIndexChanged is raised,
      ' the event handler redirects to the page selected.
      ' The CurrentNode has child nodes.
      Dim ddList As New DropDownList()
      ddList.AutoPostBack = True

      AddHandler ddList.SelectedIndexChanged, AddressOf Me.DropDownNavPathEventHandler

      ' Add a ListItem to the DropDownList for every node in the
      ' SiteMapNodes collection.
      Dim node As SiteMapNode
      For Each node In  childNodes
         ddList.Items.Add(New ListItem(node.Title, node.Url))
      Next node

      item.Controls.Add(ddList)
   End If
End Sub

Açıklamalar

iseRootToCurrent, koleksiyonun PathDirection sonuna Controls site gezinti hiyerarşisinin daha derin düzeyli her bir öğesini ekleyebilirsiniz. Ancak, özelliği olarak CurrentToRootayarlanırsaPathDirection, her daha derin düzey düğüm koleksiyonun Controls başına eklenmelidir.

Ayrıca bkz.

• ItemType
• ItemIndex