SiteMapNodeItem(Int32, SiteMapNodeItemType) コンストラクター

定義

名前空間:

System.Web.UI.WebControls

アセンブリ:

System.Web.dll

インデックスと SiteMapNodeItem を指定して、SiteMapNodeItemType クラスの新しいインスタンスを初期化します。

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)

パラメーター

itemIndex

Int32

Controls オブジェクトを追跡するために SiteMapPath コントロールが使用する SiteMapNodeItem コレクションのインデックス。

itemType

SiteMapNodeItemType

この SiteMapNode が表す SiteMapNodeItem の機能上の型。

例

次のコード例では、オブジェクトを作成する方法を SiteMapNodeItem 示します。 このコード例は、SiteMapPath クラスのために提供されている大規模な例の一部です。

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

注釈

PathDirectionが の場合はRootToCurrent、サイト ナビゲーション階層の各より深いレベルの項目をコレクションの末尾にControls追加できます。 ただし、 プロパティが PathDirection に CurrentToRoot設定されている場合は、より深いレベルの各ノードをコレクションの先頭に挿入する Controls 必要があります。

こちらもご覧ください

• ItemType
• ItemIndex