Dictionary.ValueCollection.System.Collections.Generic.ICollection<TValue>.Contains Method
Determines whether the ICollection contains a specific value.
Namespace: System.Collections.Generic
Assembly: mscorlib (in mscorlib.dll)
'Declaration
Private Function System.Collections.Generic.ICollection<TValue>.Contains ( _
item As TValue _
) As Boolean Implements ICollection(Of TValue).Contains
'Usage
Dim instance As ValueCollection
Dim item As TValue
Dim returnValue As Boolean
returnValue = CType(instance, ICollection(Of TValue)).Contains(item)
bool ICollection<TValue>.Contains (
TValue item
)
private:
virtual bool System.Collections.Generic.ICollection<TValue>.Contains (
TValue item
) sealed = ICollection<TValue>::Contains
Not applicable.
- item
The object to locate in the ICollection.
true if item is found in the ICollection; otherwise, false.
Implementations can vary in how they determine equality of objects; for example, List uses Comparer.Default, whereas, Dictionary allows the user to specify the IComparer implementation to use for comparing keys.
This method is an O(n) operation, where n is Count.
Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.
Supported in: 3.0, 2.0
Supported in: 2.0
Dictionary.ValueCollection Generic Class
Dictionary.ValueCollection Members
System.Collections.Generic Namespace