Avalonia API Reference
Avalonia
Determines whether the IDictionaryTKey, TValue contains an element with the specified key.
Definition
Namespace: Avalonia.Collections
Assembly: Avalonia.Base (in Avalonia.Base.dll) Version: 11.3.999
if the IDictionaryTKey, TValue contains an element with the key; otherwise, .
IReadOnlyDictionaryTKey, TValueContainsKey(TKey)
Assembly: Avalonia.Base (in Avalonia.Base.dll) Version: 11.3.999
C#
public bool ContainsKey(
TKey key
)VB
Public Function ContainsKey (
key As TKey
) As BooleanF#
abstract ContainsKey :
key : 'TKey -> bool
override ContainsKey :
key : 'TKey -> bool Parameters
- key TKey
- The key to locate in the IDictionaryTKey, TValue.
Return Value
Booleanif the IDictionaryTKey, TValue contains an element with the key; otherwise, .
Implements
IDictionaryTKey, TValueContainsKey(TKey)IReadOnlyDictionaryTKey, TValueContainsKey(TKey)
Exceptions
| ArgumentNullException | key is . |