ObjectExtensionsIn(Object, Object) Method

Gets whether item is among the elements of set.
See the Examples section of the generic InT(T, T) overload for an example.

Definition

Namespace: KGySoft.CoreLibraries
Assembly: KGySoft.CoreLibraries (in KGySoft.CoreLibraries.dll) Version: 9.0.0

C#

public static bool In(
	this Object? item,
	params Object[] set
)

VB

<ExtensionAttribute>
Public Shared Function In ( 
	item As Object,
	ParamArray set As Object()
) As Boolean

C++

public:
[ExtensionAttribute]
static bool In(
	Object^ item, 
	... array<Object^>^ set
)

F#

[<ExtensionAttribute>]
static member In : 
        item : Object * 
        set : Object[] -> bool

Boolean
if item is among the elements of set; otherwise, .

In Visual Basic and C#, you can call this method as an instance method on any object of type Object. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).

This method works similarly to the in operator in SQL and Pascal.

This overload uses Object.Equals method to compare the items.

Note

For better performance use the generic InT(T, T) or InT(T, FuncT) methods whenever possible.