SiteMapNodeCollection.IndexOf(SiteMapNode) Methode

Definitie

Naamruimte:
System.Web
Assembly:
System.Web.dll

Zoekt naar het opgegeven SiteMapNode object en retourneert vervolgens de op nul gebaseerde index van het eerste exemplaar in de hele verzameling.

public:
 virtual int IndexOf(System::Web::SiteMapNode ^ value);
public virtual int IndexOf(System.Web.SiteMapNode value);
abstract member IndexOf : System.Web.SiteMapNode -> int
override this.IndexOf : System.Web.SiteMapNode -> int
Public Overridable Function IndexOf (value As SiteMapNode) As Integer

Parameters

value
SiteMapNode

De SiteMapNode te vinden in de SiteMapNodeCollection.

Retouren

Int32

De op nul gebaseerde index van het eerste exemplaar van value binnen het hele SiteMapNodeCollection, indien gevonden; anders -1.

Voorbeelden

In het volgende codevoorbeeld ziet u hoe u de Contains en IndexOf methoden van de SiteMapNodeCollection klasse gebruikt. De code controleert twee providers AspNetXmlSiteMapProvider en MyXmlSiteMapProvidervoor onderliggende knooppunten van het hoofdknooppunt die duplicaten zijn.

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

Opmerkingen

De IndexOf methode bepaalt gelijkheid door de methode aan te Object.Equals roepen.

Van toepassing op