SiteMapNodeCollection.Contains(SiteMapNode) メソッド

定義

名前空間:

System.Web

アセンブリ:

System.Web.dll

特定の SiteMapNode オブジェクトがコレクションに格納されているかどうかを確認します。

public:
 virtual bool Contains(System::Web::SiteMapNode ^ value);

public virtual bool Contains (System.Web.SiteMapNode value);

abstract member Contains : System.Web.SiteMapNode -> bool
override this.Contains : System.Web.SiteMapNode -> bool

Public Overridable Function Contains (value As SiteMapNode) As Boolean

パラメーター

value

SiteMapNode

SiteMapNodeCollection 内で検索される SiteMapNode。

戻り値

Boolean

指定した SiteMapNode が SiteMapNodeCollection に含まれている場合は true。それ以外の場合は false。

例

次のコード例では、 クラスの Contains メソッドと IndexOf メソッドを使用する方法を SiteMapNodeCollection 示します。 このコードでは、重複するルート ノードの子ノードについて、 AspNetXmlSiteMapProvider 2 つのプロバイダー と MyXmlSiteMapProviderをチェックします。

String providername1 = "AspNetXmlSiteMapProvider";
String providername2 = "MyXmlSiteMapProvider";
SiteMapProviderCollection providers = SiteMap.Providers;

if (providers[providername1] != null && providers[providername2] != null)
{
  SiteMapProvider provider1 = providers[providername1];
  SiteMapProvider provider2 = providers[providername2];
  SiteMapNodeCollection collection1 = provider1.RootNode.ChildNodes;
  SiteMapNodeCollection collection2 = provider2.RootNode.ChildNodes;
  int matches = 0;
  foreach (SiteMapNode node in collection1)
  {
    if (collection2.Contains(node))
    {
      Response.Write("Match found at " +
        providername1 + ", index = " +
        collection1.IndexOf(node) + " with " +
        providername2 + ", index = " +
        collection2.IndexOf(node) + ".<br />");
      matches++;
    }
  }
  Response.Write("Number of matches found = " +
    matches.ToString() + ".");
}
else
{
  Response.Write(providername1 + " or " +
    providername2 + " not found.");
}

Dim providername1 As String = "xAspNetXmlSiteMapProvider"
Dim providername2 As String = "MyXmlSiteMapProvider"
Dim providers As SiteMapProviderCollection = SiteMap.Providers

If Not (providers(providername1) Is Nothing) AndAlso Not (providers(providername2) Is Nothing) Then
  Dim provider1 As SiteMapProvider = providers(providername1)
  Dim provider2 As SiteMapProvider = providers(providername2)
  Dim collection1 As SiteMapNodeCollection = provider1.RootNode.ChildNodes
  Dim collection2 As SiteMapNodeCollection = provider2.RootNode.ChildNodes
  Dim matches As Integer = 0
  Dim node As SiteMapNode
  For Each node In collection1
    If collection2.Contains(node) Then
      Response.Write("Match found at " & _
      providername1 & ", index = " & _
      collection1.IndexOf(node) & " with " & _
      providername2 & ", index = " & _
      collection2.IndexOf(node) & ".<br />")
      matches += 1
    End If
  Next node
  Response.Write("Number of matches found = " & _
  matches.ToString() + ".")
Else
  Response.Write(providername1 & " or " & _
  providername2 & " not found.")
End If    

注釈

メソッドは Contains 、 メソッドを呼び出すことによって等価性を Object.Equals 判断します。

こちらもご覧ください

• Count
• IndexOf(SiteMapNode)