Subscribe Method (Type, SubscribeContextCallback)
Adds an event callback that will be invoked with a context item of the given item type changes.
Namespace: Microsoft.Data.Tools.Design.Core.Context
Assembly: Microsoft.Data.Tools.Design.Core (in Microsoft.Data.Tools.Design.Core.dll)
Syntax
'Declaration
Public MustOverride Sub Subscribe ( _
contextItemType As Type, _
callback As SubscribeContextCallback _
)
'Usage
Dim instance As ContextItemCollection
Dim contextItemType As Type
Dim callback As SubscribeContextCallback
instance.Subscribe(contextItemType, callback)
public abstract void Subscribe(
Type contextItemType,
SubscribeContextCallback callback
)
public:
virtual void Subscribe(
Type^ contextItemType,
SubscribeContextCallback^ callback
) abstract
abstract Subscribe :
contextItemType:Type *
callback:SubscribeContextCallback -> unit
public abstract function Subscribe(
contextItemType : Type,
callback : SubscribeContextCallback
)
Parameters
- contextItemType
Type: System..::..Type
The type of item you wish to subscribe to.
- callback
Type: Microsoft.Data.Tools.Design.Core.Context..::..SubscribeContextCallback
A callback that will be invoked when contextItemType changes.
Exceptions
| Exception | Condition |
|---|---|
| ArgumentNullException | if contextItemType or callback is null. |