BindingSource.Contains(Object) Method
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Determines whether an object is an item in the list.
public:
virtual bool Contains(System::Object ^ value);
public virtual bool Contains (object value);
public virtual bool Contains (object? value);
abstract member Contains : obj -> bool
override this.Contains : obj -> bool
Public Overridable Function Contains (value As Object) As Boolean
- value
- Object
The Object to locate in the underlying list represented by the List property. The value can be null
.
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.
Product | Versions |
---|---|
.NET Framework | 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
Windows Desktop | 3.0, 3.1, 5, 6, 7, 8, 9 |
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