如何为VS 2008中内置的WPF应用程序附加帮助

时间:2011-05-27 12:23:49

标签: wpf

我有一个chm用于我的应用程序,我想附加我的应用程序,当用户按F1附带的项目帮助打开时。

3 个答案:

答案 0 :(得分:6)

我不知道在WPF中构建支持以显示CHM文件。我所做的是添加一个InputGesture将F1键击连接到Application.Help命令,并在Windows CommandBindings中添加一个Application.Help命令的处理程序。以下是示例代码:

<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>

这是处理程序代码:

public partial class MainWindow : Window
{
    public MainWindow()
    {
        InitializeComponent();
    }

    private void HelpExecuted(object sender, ExecutedRoutedEventArgs e)
    {
        System.Diagnostics.Process.Start(@"C:\MyProjectPath\HelpFile.chm");
    }


}

答案 1 :(得分:0)

答案 2 :(得分:0)

基于这种方法,我做了以下工作,因此我可以利用我通过RelayCommand管理帮助的OnlineHelpViewModel。当按下F1时,使用这种方法,调用viewmodel上的RelayCommand就好像ia一样?按钮被推了。换句话说,我们将F1绑定到RelayCommand。

此示例使用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);
        }
    }

确定保存命令

现在在窗口加载的事件或你喜欢的地方:

...
        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));

确定将SOURCE视图模型上的命令绑定到此窗口。

然后在这个窗口上执行命令的处理程序(也许这可以以某种方式内联)

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

现在你可以从任何地方调用OnlineHelpViewModel上的单个帮助命令,它也可以任意复杂。请注意,传递了DP HelpContextGuid - 由命令决定如何处理它,但RelayCommmand&lt; string&gt;想要一个论点

命令本身看起来像(在SOURCE Viewmodel上)

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

 ...

它调用的方法是显示帮助所需的一切,

就我而言,我创建了一个RadWindow等,并使用BackSpin Software HelpLoader使用XamlHelp填充它。帮助文件是从Word与Twister4Word生成的。 所有这一切都是我的应用程序特有的,所以你可能会做一些其他的事情来建立一个帮助窗口。这是构造函数:

   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;
    }

您可以在此处找到BackSpin帮助创作工具

http://www.backspinsoftware.com/site/Default.aspx

它从Word文档生成编译帮助。