ContextItemManager.Contains Method
[This documentation is for preview only, and is subject to change in later releases. Blank topics are included as placeholders.]
When overridden in a derived class, returns a Boolean value that indicates whether the item manager contains an item of the specified type.
Namespace: System.Activities.Design
Assembly: System.Activities.Design.Base (in System.Activities.Design.Base.dll)
Syntax
'Declaration
Public MustOverride Function Contains ( _
itemType As Type _
) As Boolean
'Usage
Dim instance As ContextItemManager
Dim itemType As Type
Dim returnValue As Boolean
returnValue = instance.Contains(itemType)
public abstract bool Contains(
Type itemType
)
public:
virtual bool Contains(
Type^ itemType
) abstract
public abstract function Contains(
itemType : Type
) : boolean
abstract Contains :
itemType:Type -> bool
Parameters
- itemType
Type: System.Type
The type of item to check.
Return Value
Type: System.Boolean
true if the context contains an instance of the specified item type; otherwise, false.
Exceptions
| Exception | Condition |
|---|---|
| ArgumentNullException | itemType is nulla null reference (Nothing in Visual Basic). |
.NET Framework Security
- Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.
Platforms
Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008, Windows Server 2003
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
Version Information
.NET Framework
Supported in: 4