WorkflowView.IServiceProvider.GetService Method (Type)

 

Gets the service of the specified type, if it is available.

Namespace:   System.Workflow.ComponentModel.Design
Assembly:  System.Workflow.ComponentModel (in System.Workflow.ComponentModel.dll)

Private Function GetService (
	serviceType As Type
) As Object
	Implements IServiceProvider.GetService

Parameters

serviceType
Type: System.Type

The Type of the service to retrieve.

Return Value

Type: System.Object

An Object implementing the requested service, or a null reference (Nothing in Visual Basic) if the service cannot be resolved.

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.

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 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

.NET Framework
Available since 3.0
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