BindingSource.Contains Method (Object)


Determines whether an object is an item in the list.

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

Public Overridable Function Contains (
	value As Object
) As Boolean


Type: System.Object

The Object to locate in the underlying list represented by the List property. The value can be null.

Return Value

Type: System.Boolean

true if the value parameter is found in the List; otherwise, false.

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
Available since 2.0
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