WorkflowView.IServiceProvider.GetService(Type) Method

Definition

Namespace:

System.Workflow.ComponentModel.Design

Assembly:

System.Workflow.ComponentModel.dll

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

serviceType

Type

The Type of the service to retrieve.

Returns

Object

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

Implements

GetService(Type)

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.