ContextItemManager.Contains Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Overloads
| Contains(Type) |
When overridden in a derived class, returns a value that indicates whether the item manager contains an item of the specified type. |
| Contains<TItemType>() |
Returns a value that indicates whether the item manager contains an item of the specified type. |
Contains(Type)
When overridden in a derived class, returns a value that indicates whether the item manager contains an item of the specified type.
public:
abstract bool Contains(Type ^ itemType);public abstract bool Contains (Type itemType);abstract member Contains : Type -> boolPublic MustOverride Function Contains (itemType As Type) As BooleanParameters
- itemType
- Type
The type of item to check for.
Returns
true if the context contains an instance of the specified item type; otherwise, false.
Exceptions
itemType is null.
Applies to
Contains<TItemType>()
Returns a value that indicates whether the item manager contains an item of the specified type.
public:
generic <typename TItemType>
where TItemType : System::Activities::Presentation::ContextItem bool Contains();public bool Contains<TItemType> () where TItemType : System.Activities.Presentation.ContextItem;member this.Contains : unit -> bool (requires 'ItemType :> System.Activities.Presentation.ContextItem)Public Function Contains(Of TItemType As ContextItem) () As BooleanType Parameters
- TItemType
The type of item to check for.
Returns
true if the context contains an instance of the specified item type; otherwise, false.
Remarks
This generic method invokes the abstract Contains method, which must be implemented for this method to provide the type checking functionality.
