Method ContainsKey
ContainsKey(TKey)
Determines whether the IDictionary<TKey,TValue> contains an element with the specified key.
Declaration
public bool ContainsKey(TKey key)Parameters
| Type | Name | Description |
|---|---|---|
| TKey | key | The key to locate in the IDictionary<TKey,TValue>. |
Returns
| Type | Description |
|---|---|
| Boolean | true if the IDictionary<TKey,TValue> contains an element with the key; otherwise, false. |
Exceptions
| Type | Condition |
|---|---|
| ArgumentNullException |
|