如何将帮助附加到VS 2008内置的WPF应用程序

我的应用程序有一个chm，我想在用户按F1键时将其附加到我的应用程序中。打开项目的附加帮助。

我不知道WPF中有任何内置的支持来显示chm文件。我要做的是添加一个InputSignature以将F1击键连接到Application.Help命令，并在Windows CommandBindings中为Application.Help命令添加一个处理程序。下面是一个示例代码：

<Window x:Class="WpfTestApp.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="MainWindow" Height="350" Width="525" >
<Window.InputBindings>
    <KeyBinding Command="Help" Key="F1"/>
</Window.InputBindings>
<Window.CommandBindings>
    <CommandBinding Command="ApplicationCommands.Help" Executed="HelpExecuted" />
</Window.CommandBindings>
<Grid>

</Grid>

---

基于这种方法，我做了以下工作，这样我就可以利用我拥有的通过RelayCommand管理帮助的OnlineHelpViewModel。按F1键时，使用这种方法调用viewmodel上的RelayCommand，就像调用ia一样？按钮被按下了。换句话说，我们将F1绑定到RelayCommand

本例使用GalaSoft MvvmLight

DependencyProperty on the MainWindow

public static DependencyProperty HelpCommandProperty =  DependencyProperty.Register("HelpCommand",
        typeof(RelayCommand<string>), typeof(WindowExt),
        new PropertyMetadata(null));

    public RelayCommand<string> HelpCommand
    {
        get
        {
            return (RelayCommand<string>)GetValue(HelpCommandProperty);
        }
        set
        {
            SetValue(HelpCommandProperty, value);
        }
    }

确定，将源viewmodel上的命令绑定到此窗口

然后在此窗口上为命令创建一个处理程序（也许可以以某种方式内联）

现在，您可以在任何地方调用OnlineHelpViewModel上的单个help命令，它也可以任意复杂。请注意，DP HelpContextGuid是传递的-由命令决定如何处理它，但relayCommand需要一个参数

命令本身看起来像（在源Viewmodel上）

您可以在此处找到BackSpin帮助创作工具

---

它从Word文档生成编译后的帮助。

这就是我要问的问题，如何做到这一点？

DependencyProperty on the MainWindow

public static DependencyProperty HelpCommandProperty =  DependencyProperty.Register("HelpCommand",
        typeof(RelayCommand<string>), typeof(WindowExt),
        new PropertyMetadata(null));

    public RelayCommand<string> HelpCommand
    {
        get
        {
            return (RelayCommand<string>)GetValue(HelpCommandProperty);
        }
        set
        {
            SetValue(HelpCommandProperty, value);
        }
    }

...
        Binding b2 = new Binding();
        b2.Source = ViewModelLocator.OnlineHelpViewModelStatic;
        b2.Path = new PropertyPath("ShowApplicationHelpCommand");
        b2.Mode = BindingMode.OneWay;
        this.SetBinding(HelpCommandProperty, b2);


        var kb = new KeyBinding();
        kb.Key = Key.F1;
        kb.Command = HelpCommand;
        this.CommandBindings.Add(new CommandBinding(ApplicationCommands.Help, HelpCommand_Executed));

private void HelpCommand_Executed(object sender, ExecutedRoutedEventArgs e)
    {
        this.HelpCommand.Execute(HelpContextGuid);
    }

 ...
 ShowApplicationHelpCommand = new RelayCommand<string>(
            (h) => { ShowApplicationHelp(h); },
            (h) => CanShowApplicationHelpCommand);

 ...

   public MigratorHelpWindow()
    {
        // create local resources for desingn mode, so Blend can see the viewmodels
        if (System.ComponentModel.DesignerProperties.GetIsInDesignMode(this))
        {
            App.CreateStaticResourcesForDesigner(this);
        }

        InitializeComponent();

        if (Application.Current.MainWindow != null)
        {
             var thm =  ThemeManager.FromName(Application.Current.FindResource("TelerikGlobalTheme").ToString() ?? "Office_Blue");
            StyleManager.SetTheme(this, thm);
        }

        // window configuration
        MaxHeight = SystemParameters.WorkArea.Height;
        MaxWidth = SystemParameters.WorkArea.Width;

        Binding b = new Binding();
        b.Source = ViewModelLocator.OnlineHelpViewModelStatic;
        b.Path = new PropertyPath("ApplicationHelpFileName");
        b.Mode = BindingMode.OneWay;

        this.SetBinding(ApplicationHelpFileNameProperty, b);

        if (String.IsNullOrEmpty(ApplicationHelpFileName))
        {
            UiHelpers.ShowError("No help file is available", true);
            return;
        }


   // LOAD YOUR HELP HERE OR WHATEVER
   // LOAD YOUR HELP HERE OR WHATEVER
   // LOAD YOUR HELP HERE OR WHATEVER


        HelpLoader.Load(ApplicationHelpFileName);
        HelpLoader.Default.Owner = this;
        HelpLoader.Default.HelpLayout = HelpLayout.Standard;
        HelpLoader.Default.TocContainer = _mTOC;
        HelpLoader.Default.IndexContainer = _mIndex;
        HelpLoader.Default.TopicContainer = _mTopic;
        HelpLoader.Default.SearchContainer = _mSearch;
        HelpLoader.Default.FavoritesContainer = _mFavorites;
    }