WorkflowView.ShadowDepth Proprietà

Definizione

Spazio dei nomi:

System.Workflow.ComponentModel.Design

Assembly:

System.Workflow.ComponentModel.dll

Ottiene o imposta l'oggetto ShadowDepth per WorkflowView.

public:
 property int ShadowDepth { int get(); void set(int value); };

public int ShadowDepth { get; set; }

member this.ShadowDepth : int with get, set

Public Property ShadowDepth As Integer

Valore della proprietà

Int32

Profondità dell'ombreggiatura in pixel.

Esempio

Nell'esempio di codice seguente viene illustrato come creare un'istanza della classe WorkflowView utilizzando il metodo GetView. Il codice imposta quindi molte proprietà WorkflowView, tra cui HScrollBar, VScrollBar e ShadowDepth, e chiama il metodo FitToScreenSize.

IDesignerHost designerHost = designSurface.GetService(typeof(IDesignerHost)) as IDesignerHost;
if (designerHost != null && designerHost.RootComponent != null)
{
    IRootDesigner rootDesigner = designerHost.GetDesigner(designerHost.RootComponent) as IRootDesigner;
    if (rootDesigner != null)
    {
        UnloadWorkflow();

        this.designSurface = designSurface;
        this.loader = loader;
        this.workflowView = rootDesigner.GetView(ViewTechnology.Default) as WorkflowView;
        this.splitContainer1.Panel1.Controls.Add(this.workflowView);
        this.workflowView.Dock = DockStyle.Fill;
        this.workflowView.TabIndex = 1;
        this.workflowView.TabStop = true;
        this.workflowView.HScrollBar.TabStop = false;
        this.workflowView.VScrollBar.TabStop = false;
        this.workflowView.ShadowDepth = 0;
        this.workflowView.EnableFitToScreen = true;
        this.workflowView.Focus();

        ISelectionService selectionService = GetService(typeof(ISelectionService)) as ISelectionService;
        IComponentChangeService changeService = GetService(typeof(IComponentChangeService)) as IComponentChangeService;

        if (selectionService != null)
        {
            selectionService.SelectionChanged += new EventHandler(OnSelectionChanged);
        }

        if (changeService != null)
        {
            changeService.ComponentAdded += new ComponentEventHandler(changeService_ComponentAdded);
            changeService.ComponentChanged += new ComponentChangedEventHandler(changeService_ComponentChanged);
            changeService.ComponentRemoved += new ComponentEventHandler(changeService_ComponentRemoved);
            changeService.ComponentRename += new ComponentRenameEventHandler(changeService_ComponentRename);
        }
    }
}

Dim designerHost As IDesignerHost = CType(designSurface.GetService(GetType(IDesignerHost)), IDesignerHost)
If designerHost IsNot Nothing And designerHost.RootComponent IsNot Nothing Then

    Dim rootDesigner As IRootDesigner = CType(designerHost.GetDesigner(designerHost.RootComponent), IRootDesigner)
    If rootDesigner IsNot Nothing Then
        UnloadWorkflow()

        Me.designSurface = designSurface
        Me.loader = loader
        Me.workflowView = CType(rootDesigner.GetView(ViewTechnology.Default), WorkflowView)
        Me.splitContainer1.Panel1.Controls.Add(Me.workflowView)
        Me.workflowView.Dock = DockStyle.Fill
        Me.workflowView.TabIndex = 1
        Me.workflowView.TabStop = True
        Me.workflowView.HScrollBar.TabStop = False
        Me.workflowView.VScrollBar.TabStop = False
        Me.workflowView.ShadowDepth = 0
        Me.workflowView.EnableFitToScreen = True
        Me.workflowView.Focus()

        Dim selectionService As ISelectionService = CType(GetService(GetType(ISelectionService)), ISelectionService)
        Dim changeService As IComponentChangeService = CType(GetService(GetType(IComponentChangeService)), IComponentChangeService)

        If selectionService IsNot Nothing Then
            AddHandler selectionService.SelectionChanged, AddressOf OnSelectionChanged
        End If

        If changeService IsNot Nothing Then

            AddHandler changeService.ComponentAdded, AddressOf changeService_ComponentAdded
            AddHandler changeService.ComponentChanged, AddressOf changeService_ComponentChanged
            AddHandler changeService.ComponentRemoved, AddressOf changeService_ComponentRemoved
            AddHandler changeService.ComponentRename, AddressOf changeService_ComponentRename
        End If
    End If
End If

Il metodo UnloadWorkflow chiamato nel codice precedente rimuove un flusso di lavoro attualmente caricato e prepara il caricamento di un nuovo flusso di lavoro e viene implementato come segue:

private void UnloadWorkflow()
{
    IDesignerHost designerHost = GetService(typeof(IDesignerHost)) as IDesignerHost;
    if (designerHost != null && designerHost.Container.Components.Count > 0)
        WorkflowLoader.DestroyObjectGraphFromDesignerHost(designerHost, designerHost.RootComponent as Activity);

    if (this.designSurface != null)
    {
        this.designSurface.Dispose();
        this.designSurface = null;
    }

    if (this.workflowView != null)
    {
        Controls.Remove(this.workflowView);
        this.workflowView.Dispose();
        this.workflowView = null;
    }
}

Private Sub UnloadWorkflow()


    Dim designerHost As IDesignerHost = CType(GetService(GetType(IDesignerHost)), IDesignerHost)
    If designerHost IsNot Nothing And designerHost.Container.Components.Count > 0 Then
        WorkflowLoader.DestroyObjectGraphFromDesignerHost(designerHost, CType(designerHost.RootComponent, Activity))
    End If

    If Me.designSurface IsNot Nothing Then
        Me.designSurface.Dispose()
        Me.designSurface = Nothing
    End If


    If Me.workflowView IsNot Nothing Then
        Controls.Remove(Me.workflowView)
        Me.workflowView.Dispose()
        Me.workflowView = Nothing
    End If

End Sub

Commenti

Utilizzare la proprietà ShadowDepth per ottenere o regolare la profondità dell'ombreggiatura del testo visualizzato sull'area di progettazione del flusso di lavoro.