HttpListenerPrefixCollection::Contains Method (String^)
.NET Framework (current version)
Returns a Boolean value that indicates whether the specified prefix is contained in the collection.
Assembly: System (in System.dll)
Parameters
- uriPrefix
-
Type:
System::String^
A String that contains the Uniform Resource Identifier (URI) prefix to test.
Return Value
Type: System::Booleantrue if this collection contains the prefix specified by uriPrefix; otherwise, false.
Implements
ICollection<T>::Contains(T)| Exception | Condition |
|---|---|
| ArgumentNullException | uriPrefix is null. |
The specified prefix must exactly match an existing value.
The following code example checks to see whether a user-specified prefix is contained in the prefix collection of an HttpListener.
public static bool CheckForPrefix(HttpListener listener, string prefix) { // Get the prefixes that the Web server is listening to. HttpListenerPrefixCollection prefixes = listener.Prefixes; if (prefixes.Count == 0 || prefix == null) { return false; } return prefixes.Contains(prefix); }
.NET Framework
Available since 2.0
Available since 2.0
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