ContainsKey メソッド (OrderedDictionary<TKey,TValue>)

Determines whether the OrderedDictionary<TKey,TValue> collection contains a specific key.

シンタックス

'宣言
 
Public Function ContainsKey( _
   ByVal key As TKey _
) As System.Boolean

'使用法
 
Dim instance As OrderedDictionary(Of TKey,TValue)
Dim key As TKey
Dim value As System.Boolean
 
value = instance.ContainsKey(key)

public System.bool ContainsKey( 
   TKey key
)

key: The key to locate in the OrderedDictionary<TKey,TValue> collection.

true if the OrderedDictionary<TKey,TValue> collection contains an element with the specified key; otherwise, false.

例外

例外	解説
System.ArgumentNullException	key is .

参照