SiteMapNode.Url 속성

정의

SiteMapNode 개체에서 나타내는 페이지의 URL을 가져오거나 설정합니다.Gets or sets the URL of the page that the SiteMapNode object represents.

public:
 virtual property System::String ^ Url { System::String ^ get(); void set(System::String ^ value); };
public virtual string Url { get; set; }
member this.Url : string with get, set
Public Overridable Property Url As String

속성 값

String

노드에서 나타내는 페이지의 URL입니다.The URL of the page that the node represents. 기본값은 Empty입니다.The default is Empty.

예외

노드는 읽기 전용입니다.The node is read-only.

예제

다음 코드 예제에서는 설정 하는 방법에 설명 합니다 Url 의 속성을 SiteMapNode 개체입니다.The following code example demonstrates how to set the Url property of a SiteMapNode object. 합니다 AccessSiteMapProvider 가 없는 행으로 해당 루트 노드를 저장 parentnodeid 정의 합니다.The AccessSiteMapProvider stores its root node as a row that has no parentnodeid defined. 사용 하는 행이 반환 되는 OleDbDataReader 개체 및 SiteMapNode 데이터 판독기의 값에서 속성이 설정 됩니다.The row is returned using an OleDbDataReader object, and SiteMapNode properties are set from the values in the data reader.

이 코드 예제는에 대해 제공 된 큰 예제의 일부는 SiteMapProvider 클래스입니다.This code example is part of a larger example provided for the SiteMapProvider class.

// Build an in-memory representation from persistent
// storage, and return the root node of the site map.
virtual SiteMapNode ^ BuildSiteMap() override
{
   // Since the SiteMap class is static, make sure that it is
   // not modified while the site map is built.
   System::Threading::Monitor::Enter( this );
   try
   {
      
      // If there is no initialization, this method is being
      // called out of order.
      if (  !IsInitialized )
      {
         throw gcnew Exception( "BuildSiteMap called incorrectly." );
      }
      
      // If there is no root node, then there is no site map.
      if ( nullptr == rootNode )
      {
         
         // Start with a clean slate
         Clear();
         
         // Select the root node of the site map from Microsoft Access.
         int rootNodeId = -1;
         if ( accessConnection->State == ConnectionState::Closed )
            accessConnection->Open();
         
         OleDbCommand^ rootNodeCommand = gcnew OleDbCommand
            ("SELECT nodeid, url, name FROM SiteMap WHERE parentnodeid IS NULL", accessConnection);
         OleDbDataReader^ rootNodeReader = rootNodeCommand->ExecuteReader();
         if ( rootNodeReader->HasRows )
         {
            rootNodeReader->Read();
            rootNodeId = rootNodeReader->GetInt32( 0 );
            
            // Create a SiteMapNode that references the current StaticSiteMapProvider.
            rootNode = gcnew SiteMapNode(this, rootNodeId.ToString(), 
               rootNodeReader->GetString( 1 ),rootNodeReader->GetString( 2 ));
         }
         else
            return nullptr;
         rootNodeReader->Close();
         
         // Select the child nodes of the root node.
         OleDbCommand^ childNodesCommand = gcnew OleDbCommand
            ("SELECT nodeid, url, name FROM SiteMap WHERE parentnodeid = ?", accessConnection);
         OleDbParameter^ rootParam = gcnew OleDbParameter( "parentid", OleDbType::Integer);
         rootParam->Value = rootNodeId;
         childNodesCommand->Parameters->Add( rootParam );
         OleDbDataReader^ childNodesReader = childNodesCommand->ExecuteReader();
         if ( childNodesReader->HasRows )
         {
            SiteMapNode ^ childNode = nullptr;
            while ( childNodesReader->Read() )
            {
               childNode = gcnew SiteMapNode( this, 
                   System::Convert::ToString(childNodesReader->GetInt32( 0 )),
                  childNodesReader->GetString( 1 ),
                  childNodesReader->GetString( 2 ) 
               );
               // Use the SiteMapNode AddNode method to add
               // the SiteMapNode to the ChildNodes collection.
               AddNode( childNode, rootNode );
            }
         }
         childNodesReader->Close();
         accessConnection->Close();
      }
      return rootNode;
   }
   finally
   {
      System::Threading::Monitor::Exit( this );
   }

}

// Build an in-memory representation from persistent
// storage, and return the root node of the site map.
public override SiteMapNode BuildSiteMap() {

    // Since the SiteMap class is static, make sure that it is
    // not modified while the site map is built.
    lock(this) {

        // If there is no initialization, this method is being
        // called out of order.
        if (! IsInitialized) {
            throw new Exception("BuildSiteMap called incorrectly.");
        }

        // If there is no root node, then there is no site map.
        if (null == rootNode) {
            // Start with a clean slate
            Clear();

            // Select the root node of the site map from Microsoft Access.
            int rootNodeId = -1;

            if (accessConnection.State == ConnectionState.Closed)
                accessConnection.Open();
            OleDbCommand rootNodeCommand =
                new OleDbCommand("SELECT nodeid, url, name FROM SiteMap WHERE parentnodeid IS NULL",
                                 accessConnection);
            OleDbDataReader rootNodeReader = rootNodeCommand.ExecuteReader();

            if(rootNodeReader.HasRows) {
                rootNodeReader.Read();
                rootNodeId = rootNodeReader.GetInt32(0);
                // Create a SiteMapNode that references the current StaticSiteMapProvider.
                rootNode   = new SiteMapNode(this,
                                             rootNodeId.ToString(),
                                             rootNodeReader.GetString(1),
                                             rootNodeReader.GetString(2));
            }
            else
            {
                return null;
            }

            rootNodeReader.Close();
            // Select the child nodes of the root node.
            OleDbCommand childNodesCommand =
                new OleDbCommand("SELECT nodeid, url, name FROM SiteMap WHERE parentnodeid = ?",
                                 accessConnection);
            OleDbParameter rootParam = new OleDbParameter("parentid", OleDbType.Integer);
            rootParam.Value = rootNodeId;
            childNodesCommand.Parameters.Add(rootParam);

            OleDbDataReader childNodesReader = childNodesCommand.ExecuteReader();

            if (childNodesReader.HasRows) {

                SiteMapNode childNode = null;
                while(childNodesReader.Read()) {
                    childNode =  new SiteMapNode(this,
                                                 childNodesReader.GetInt32(0).ToString(),
                                                 childNodesReader.GetString(1),
                                                 childNodesReader.GetString(2));

                    // Use the SiteMapNode AddNode method to add
                    // the SiteMapNode to the ChildNodes collection.
                    AddNode(childNode, rootNode);
                }
            }

            childNodesReader.Close();
            accessConnection.Close();
        }
        return rootNode;
    }
}
' Build an in-memory representation from persistent
' storage, and return the root node of the site map.
Public Overrides Function BuildSiteMap() As SiteMapNode

    ' Since the SiteMap class is static, make sure that it is
    ' not modified while the site map is built.
    SyncLock Me

        ' If there is no initialization, this method is being
        ' called out of order.
        If Not IsInitialized Then
            Throw New Exception("BuildSiteMap called incorrectly.")
        End If

        ' If there is no root node, then there is no site map.
        If aRootNode Is Nothing Then
            ' Start with a clean slate
            Clear()

            ' Select the root node of the site map from Microsoft Access.
            Dim rootNodeId As Integer = -1

            If accessConnection.State = ConnectionState.Closed Then
                accessConnection.Open()
            End If
            Dim rootNodeCommand As New OleDbCommand("SELECT nodeid, url, name FROM SiteMap WHERE parentnodeid IS NULL", accessConnection)
            Dim rootNodeReader As OleDbDataReader = rootNodeCommand.ExecuteReader()

            If rootNodeReader.HasRows Then
                rootNodeReader.Read()
                rootNodeId = rootNodeReader.GetInt32(0)
                ' Create a SiteMapNode that references the current StaticSiteMapProvider.
                aRootNode = New SiteMapNode(Me, rootNodeId.ToString(), rootNodeReader.GetString(1), rootNodeReader.GetString(2))
            Else
                Return Nothing
            End If
            rootNodeReader.Close()
            ' Select the child nodes of the root node.
            Dim childNodesCommand As New OleDbCommand("SELECT nodeid, url, name FROM SiteMap WHERE parentnodeid = ?", accessConnection)
            Dim rootParam As New OleDbParameter("parentid", OleDbType.Integer)
            rootParam.Value = rootNodeId
            childNodesCommand.Parameters.Add(rootParam)

            Dim childNodesReader As OleDbDataReader = childNodesCommand.ExecuteReader()

            If childNodesReader.HasRows Then

                Dim childNode As SiteMapNode = Nothing
                While childNodesReader.Read()
                    childNode = New SiteMapNode(Me, _
                    childNodesReader.GetInt32(0).ToString(), _
                    childNodesReader.GetString(1), _
                    childNodesReader.GetString(2))

                    ' Use the SiteMapNode AddNode method to add
                    ' the SiteMapNode to the ChildNodes collection.
                    AddNode(childNode, aRootNode)
                End While
            End If

            childNodesReader.Close()
            accessConnection.Close()
        End If
        Return aRootNode
    End SyncLock

End Function 'BuildSiteMap

설명

합니다 XmlSiteMapProvider ASP.NET의 기본 사이트 맵 공급자 구현 클래스를 사용 하는 SiteMapNode.Url 속성을 조회 키로 합니다.The XmlSiteMapProvider class, which is the default site map provider implementation for ASP.NET, uses the SiteMapNode.Url property as a lookup key. 따라서 SiteMapNode 에서 사용 되는 개체는 XmlSiteMapProvider 클래스는 공급자의 범위 내에서 고유한 URL을 있어야 합니다.Therefore, any SiteMapNode object that is used by the XmlSiteMapProvider class must have a unique URL within the scope of the provider.

선행 및 후행 공백 문자는 무시 됩니다.Leading and trailing white-space characters are ignored.

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