SiteMapNodeCollection.Contains(SiteMapNode) Method
Definition
Important
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Determines whether the collection contains a specific SiteMapNode object.
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
Parameters
- value
- SiteMapNode
The SiteMapNode to locate in the SiteMapNodeCollection.
Returns
true
if the SiteMapNodeCollection contains the specified SiteMapNode; otherwise, false
.
Examples
The following code example demonstrates how to use the Contains and IndexOf methods of the SiteMapNodeCollection class. The code checks two providers, AspNetXmlSiteMapProvider
and MyXmlSiteMapProvider
, for child nodes of the root node that are duplicates.
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
Remarks
The Contains method determines equality by calling the Object.Equals method.
Applies to
See also
Pripomienky
https://aka.ms/ContentUserFeedback.
Pripravujeme: V priebehu roka 2024 postupne zrušíme službu Problémy v službe GitHub ako mechanizmus pripomienok týkajúcich sa obsahu a nahradíme ju novým systémom pripomienok. Ďalšie informácie nájdete na stránke:Odoslať a zobraziť pripomienky pre