M_CodeJam_Collections_CollectionExtensions_NullIfEmpty__2

CollectionExtensions.NullIfEmpty(TKey, TValue) Method (Dictionary(TKey, TValue))

Returns null if the dictionary is empty.

Namespace: CodeJam.Collections
Assembly: CodeJam (in CodeJam.dll) Version: 2.1.0.0

Syntax

C#

public static Dictionary<TKey, TValue> NullIfEmpty<TKey, TValue>(
	this Dictionary<TKey, TValue> dictionary
)

VB

<ExtensionAttribute>
Public Shared Function NullIfEmpty(Of TKey, TValue) ( 
	dictionary As Dictionary(Of TKey, TValue)
) As Dictionary(Of TKey, TValue)

F#

[<ExtensionAttribute>]
static member NullIfEmpty : 
        dictionary : Dictionary<'TKey, 'TValue> -> Dictionary<'TKey, 'TValue> 

Parameters

 

dictionary

Type: System.Collections.Generic.Dictionary(TKey, TValue)
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Type Parameters

 

TKey

The type of the key.

TValue

The type of the value.

Return Value

Type: Dictionary(TKey, TValue)
null if the dictionary is empty.

Usage Note

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

See Also

Reference

CollectionExtensions Class
NullIfEmpty Overload
CodeJam.Collections Namespace