EnumerableExtensionsIsNullOrEmptyT(IEnumerableT) Method

Determines whether the specified source is or empty (has no elements).

Definition

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

C#

public static bool IsNullOrEmpty<T>(
	this IEnumerable<T>? source
)

VB

<ExtensionAttribute>
Public Shared Function IsNullOrEmpty(Of T) ( 
	source As IEnumerable(Of T)
) As Boolean

C++

public:
[ExtensionAttribute]
generic<typename T>
static bool IsNullOrEmpty(
	IEnumerable<T>^ source
)

F#

[<ExtensionAttribute>]
static member IsNullOrEmpty : 
        source : IEnumerable<'T> -> bool

Boolean
if the source collection is or empty; otherwise, .

In Visual Basic and C#, you can call this method as an instance method on any object of type IEnumerableT. 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).