WorkflowView.EnsureVisible(Object) Method

Reference

Definition

Namespace:: System.Workflow.ComponentModel.Design

Assembly:: System.Workflow.ComponentModel.dll

Important

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Ensures that the Object passed is visible, expanding parent objects and scrolling the WorkflowView as necessary.

public:
 void EnsureVisible(System::Object ^ selectableObject);

public void EnsureVisible (object selectableObject);

member this.EnsureVisible : obj -> unit

Public Sub EnsureVisible (selectableObject As Object)

Parameters

selectableObject: Object

The object to make visible.

Exceptions

ArgumentNullException

selectableObject is a null reference (Nothing in Visual Basic).

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

Use EnsureVisible when you are working with an object in the workflow that requires user interface cues. EnsureVisible will expand parent objects and scroll the WorkflowView as necessary to make the object visible on the designer.

Applies to

共用方式為