详解Visual Studio中的移植设计器功能-技术开发专区

详解Visual Studio中的移植设计器功能

作者：IT168技术频道整理编辑：胡铭娅 2009-12-31 06:00 来源：IT168�

　　如下面所示，AddDesigner 函数把设计器加到你的窗口中。

　　(代码段- Introduction to WF4 Lab – AddDesigner method CSharp)

private void AddDesigner()
{
    //Create an instance of WorkflowDesigner class
    this.workflowDesigner = new WorkflowDesigner();

    //Place the WorkflowDesigner in the middle column of the grid
    Grid.SetColumn(this.workflowDesigner.View, 1);

    // Flush the workflow when the model changes
    workflowDesigner.ModelChanged += (s, e) =>
    {
        workflowDesigner.Flush();
        textXAML.Text = workflowDesigner.Text;
    };

    //Load a new Sequence as default.
    this.workflowDesigner.Load(new Sequence());

    //Add the WorkflowDesigner to the grid
    grid1.Children.Add(this.workflowDesigner.View);

    // Add the Property Inspector
    Grid.SetColumn(workflowDesigner.PropertyInspectorView, 2);
    grid1.Children.Add(workflowDesigner.PropertyInspectorView);

    // Add the toolbox
    ToolboxControl tc = CreateToolboxControl();
    Grid.SetColumn(tc, 0);
    grid1.Children.Add(tc);
}

　　(代码段- Introduction to WF4 Lab – AddDesigner method VB)

Private Sub AddDesigner()

    'Create an instance of WorkflowDesigner class
    workflowDesigner = New WorkflowDesigner()

    'Place the WorkflowDesigner in the middle column of the grid
    Grid.SetColumn(workflowDesigner.View, 1)

    ' Setup the Model Changed event handler
    AddHandler workflowDesigner.ModelChanged,
        Function(sender As Object, e As System.EventArgs)
            ' Flush the workflow when the model changes
            workflowDesigner.Flush()
            textXAML.Text = workflowDesigner.Text
            Return Nothing
        End Function

    'Load a new Sequence as default.
    workflowDesigner.Load(New Sequence())

    'Add the WorkflowDesigner to the grid
    grid1.Children.Add(workflowDesigner.View)

    ' Add the Property Inspector
    Grid.SetColumn(workflowDesigner.PropertyInspectorView, 2)
    grid1.Children.Add(workflowDesigner.PropertyInspectorView)

    ' Add the toolbox
    Dim tc As ToolboxControl = CreateToolboxControl()
    Grid.SetColumn(tc, 0)
    grid1.Children.Add(tc)
End Sub

　　在构造函数中，以上的那些函数会被调用。

　　(代码段- Introduction to WF4 Lab – MainWindow method CSharp)

public MainWindow()
{
    InitializeComponent();
    RegisterMetadata();
    AddDesigner();
}

　　(代码段- Introduction to WF4 Lab – MainWindow method VB)

Public Sub New()
    ' This call is required by the designer.
    InitializeComponent()

    ' Add any initialization after the InitializeComponent() call.
    RegisterMetadata()
    AddDesigner()
End Sub

第1页：打开解决方案第2页：浏览HelloDesigner解决方案第3页：设计器加到窗口中

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