ReadOnlyCollection<T>.IList.Contains Method
Microsoft Silverlight will reach end of support after October 2021. Learn more.
Determines whether the IList contains a specific value.
Namespace: System.Collections.ObjectModel
Assembly: mscorlib (in mscorlib.dll)
Syntax
'Declaration
Private Function Contains ( _
value As Object _
) As Boolean Implements IList.Contains
bool IList.Contains(
Object value
)
Parameters
- value
Type: System.Object
The Object to locate in the IList.
Return Value
Type: System.Boolean
true if the Object is found in the IList; otherwise, false.
Implements
Exceptions
| Exception | Condition |
|---|---|
| ArgumentException | 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.
Version Information
Silverlight
Supported in: 5, 4, 3
Silverlight for Windows Phone
Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0
XNA Framework
Supported in: Xbox 360, Windows Phone OS 7.0
Platforms
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.