WorkflowView.IServiceProvider.GetService(Type) 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.
Gets the service of the specified type, if it is available.
virtual System::Object ^ System.IServiceProvider.GetService(Type ^ serviceType) = IServiceProvider::GetService;
object IServiceProvider.GetService (Type serviceType);
abstract member System.IServiceProvider.GetService : Type -> obj
override this.System.IServiceProvider.GetService : Type -> obj
Function GetService (serviceType As Type) As Object Implements IServiceProvider.GetService
Parameters
Returns
An Object implementing the requested service, or a null reference (Nothing
in Visual Basic) if the service cannot be resolved.
Implements
Examples
The following example uses the GetService method of the WorkflowView object to return an ISelectionService interface. If the service exists, EnsureVisible is called passing the currently selected activity using the PrimarySelection
property of the ISelectionService object.
public void FindSelection()
{
ISelectionService selectionService;
selectionService = ((IServiceProvider)this.workflowView).GetService(typeof(ISelectionService))
as ISelectionService;
if (selectionService != null)
this.workflowView.EnsureVisible(selectionService.PrimarySelection);
}
Public Sub FindSelection()
Dim selectionService As ISelectionService
selectionService = CType(CType(Me.workflowView, IServiceProvider).GetService(GetType(ISelectionService)), ISelectionService)
If selectionService IsNot Nothing Then
Me.workflowView.EnsureVisible(selectionService.PrimarySelection)
End If
End Sub
Remarks
If the serviceType
is CommandID
this method will return a specific CommandID
. For any other Type
, GetService
will return an Object that implements the requested service, or a null reference (Nothing
) if the service cannot be resolved.
Applies to
意見反應
https://aka.ms/ContentUserFeedback。
即將登場:在 2024 年,我們將逐步淘汰 GitHub 問題作為內容的意見反應機制,並將它取代為新的意見反應系統。 如需詳細資訊,請參閱:提交並檢視相關的意見反應