ValueProviderDictionary.ContainsKey Method
Determines whether the collection of value providers contains an element that has the specified key.
Namespace: System.Web.Mvc
Assembly: System.Web.Mvc (in System.Web.Mvc.dll)
abstract ContainsKey : key:string -> bool override ContainsKey : key:string -> bool
Parameters
- key
- Type: System.String
The key of the element to find in the IDictionary(TKey, TValue) instance.
Return Value
Type: System.Booleantrue if the collection of value providers contains an element that has the key; otherwise, false.
Implements
IDictionary(TKey, TValue).ContainsKey(TKey)| Exception | Condition |
|---|---|
| ArgumentNullException | key is a null reference (Nothing in Visual Basic). |
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