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， RegisterMetadata函数使得设计器能够储存元数据。

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

private void RegisterMetadata()
{
    DesignerMetadata metaData = new DesignerMetadata();
    metaData.Register();
    AttributeTableBuilder builder = new AttributeTableBuilder();
    MetadataStore.AddAttributeTable(builder.CreateTable());
}

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

Public Sub RegisterMetadata()
    Dim metaData As DesignerMetadata = New DesignerMetadata()
    metaData.Register()
    Dim builder As AttributeTableBuilder = New AttributeTableBuilder()
    MetadataStore.AddAttributeTable(builder.CreateTable())
End Sub

　　当你移植设计器，你可以控制工具栏。你可以选择出现在工具栏上的控件，该控件的分类，甚至控件的名称。如下面所示，CreateToolboxControl函数实现了上述功能。

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

private ToolboxControl CreateToolboxControl()
{
    //Create the ToolBoxControl
    ToolboxControl ctrl = new ToolboxControl();

    //Create a collection of category items
    ToolboxCategory category = new ToolboxCategory("Hello Workflow");

    //Creating toolboxItems
    ToolboxItemWrapper tool0 = new ToolboxItemWrapper(
        "System.Activities.Statements.Assign",
        "System.Activities, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
        , null,
        "Assign");
    ToolboxItemWrapper tool1 = new ToolboxItemWrapper(
        "System.Activities.Statements.Sequence",
        "System.Activities, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35",
        null,
        "Sequence");
    ToolboxItemWrapper tool2 = new ToolboxItemWrapper(
        "System.Activities.Statements.TryCatch",
        "System.Activities, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35",
        null,
        "Try It"); // Can use a different name
    ToolboxItemWrapper tool3 = new ToolboxItemWrapper(
        "HelloWorkflow.Activities.PrePostSequence",
        "HelloWorkflow.Activities",
        null,
        "PrePostSequence");

    //Adding the toolboxItems to the category.
    category.Add(tool0);
    category.Add(tool1);
    category.Add(tool2);
    category.Add(tool3);

    //Adding the category to the ToolBox control.
    ctrl.Categories.Add(category);
    return ctrl;
}

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

Private Function CreateToolboxControl() As ToolboxControl
    'Create the ToolBoxControl
    Dim ctrl As ToolboxControl = New ToolboxControl()

    'Create a collection of category items
    Dim category As ToolboxCategory = New ToolboxCategory("Hello Workflow")

    'Creating toolboxItems
    Dim tool0 As ToolboxItemWrapper = New ToolboxItemWrapper(
        "System.Activities.Statements.Assign",
        "System.Activities, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35",
        Nothing,
        "Assign")
    Dim tool1 As ToolboxItemWrapper = New ToolboxItemWrapper(
        "System.Activities.Statements.Sequence",
        "System.Activities, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35",
        Nothing,
        "Sequence")
    Dim tool2 As ToolboxItemWrapper = New ToolboxItemWrapper(
        "System.Activities.Statements.TryCatch",
        "System.Activities, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35",
        Nothing,
        "Try It") ' Can use a different name
    Dim tool3 As ToolboxItemWrapper = New ToolboxItemWrapper(
        "HelloWorkflow.Activities.PrePostSequence",
        "HelloWorkflow.Activities",
        Nothing,
        "PrePostSequence")

    'Adding the toolboxItems to the category.
    category.Add(tool0)
    category.Add(tool1)
    category.Add(tool2)
    category.Add(tool3)

    'Adding the category to the ToolBox control.
    ctrl.Categories.Add(category)
    Return ctrl
End Function

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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