WorkflowView.GetService Method (Type)

 

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

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

protected override object GetService(
	Type serviceType
)

Parameters

serviceType
Type: System.Type

The Type of the service to retrieve.

Return Value

Type: System.Object

If the serviceType is typeof(CommandID) then GetService returns a specific CommandID; otherwise, GetService returns a Object implementing the requested service, or a null reference (Nothing in Visual Basic) if the service cannot be resolved.

GetService returns a Object implementing 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 void FindSelection()
{
    ISelectionService selectionService;
    selectionService = ((IServiceProvider)this.workflowView).GetService(typeof(ISelectionService))
        as ISelectionService;

    if (selectionService != null)
        this.workflowView.EnsureVisible(selectionService.PrimarySelection);
}

.NET Framework
Available since 3.0
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