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BindingSource.Contains Method

Determines whether an object is an item in the list.

Namespace:  System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

'Declaration
Public Overridable Function Contains ( _
	value As Object _
) As Boolean

Parameters

value
Type: System.Object

The Object to locate in the underlying list represented by the List property. The value can be Nothing.

Return Value

Type: System.Boolean
true if the value parameter is found in the List; otherwise, false.

Implements

IList.Contains(Object)

Although the implementation is dependent on the underlying list's Contains method, typically the following characteristics apply:

  • List is searched starting at the first element and ending at the last element.

  • The underlying method performs a linear search; therefore, the average execution time is proportional to the value of the Count property.

  • The underlying method determines equality by calling the Equals method.

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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