ReadOnlyCollection<T>.IList.Contains(Object) Method
Definition
Important
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Determines whether the IList contains a specific value.
virtual bool System.Collections.IList.Contains(System::Object ^ value) = System::Collections::IList::Contains;
bool IList.Contains (object value);
abstract member System.Collections.IList.Contains : obj -> bool
override this.System.Collections.IList.Contains : obj -> bool
Function Contains (value As Object) As Boolean Implements IList.Contains
Parameters
Returns
true
if the Object is found in the IList; otherwise, false
.
Implements
Exceptions
value
is not of the type specified for the generic type parameter T
.
Remarks
This method determines equality using the default comparer EqualityComparer<T>.Default.
This method performs a linear search; therefore, this method is an O(n
) operation, where n
is Count.
This member is an explicit interface member implementation. It can be used only when the ReadOnlyCollection<T> instance is cast to an IList interface.
Applies to
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