ContainsKey Method

Determines whether the IDictionary(TKey, TValue) contains an element with the specified key.

Definition

Namespace: Avalonia.Collections
Assembly: Avalonia.Base (in Avalonia.Base.dll)

C#

public bool ContainsKey(
	TKey key
)

VB

Public Function ContainsKey ( 
	key As TKey
) As Boolean

F#

abstract ContainsKey : 
        key : 'TKey -> bool 
override ContainsKey : 
        key : 'TKey -> bool 

Parameters

  TKey

The key to locate in the IDictionary(TKey, TValue).

Return Value

Boolean
true if the IDictionary(TKey, TValue) contains an element with the key; otherwise, false.

Implements

IDictionary(TKey, TValue).ContainsKey(TKey)
IReadOnlyDictionary(TKey, TValue).ContainsKey(TKey)

Exceptions

ArgumentNullException

key is null.

See Also

Reference

AvaloniaDictionary(TKey, TValue) Class
Avalonia.Collections Namespace