Method ContainsKey
ContainsKey(String)
Determines whether the specified key exists in the dictionary
represented by this instance.
Declaration
public bool ContainsKey(string key)
Parameters
Type | Name | Description |
---|---|---|
String | key | The key to locate. |
Returns
Type | Description |
---|---|
Boolean | true if the dictionary contains an element with
the specified key, otherwise false . |
Exceptions
Type | Condition |
---|---|
ArgumentNullException | The key
is null . |