帮助模块：HelpProvider想用的可以去msdn上查一查，不过这货是windows.forms里的东西，不能在wpf里面用，坑爹呢啊这是，不过在网上找到了一个高人应该算是在wpf里重写了这个HelpProvider，这就让我们写wpf的也可以好好用了，代码经过测试，妥妥的。
namespace ContextSensitiveHelp
{
    /// <summary>
    /// This class provides the ability to easily attach Help functionality to Framework elements.
    /// To use it, you need to add a reference to the HelpProvider in your XAML.
    /// The FilenameProperty specifies the name of the help file, and the KeywordProperty specifies the keyword to be used with the search.
    /// </summary>
    /// <remarks>
    /// The FilenameProperty can be at a higher level of the visual tree than the KeywordProperty, so you don't need to set the filename each time.
    /// </remarks>
    static class HelpProvider
    {
        static HelpProvider()
        {
            CommandManager.RegisterClassCommandBinding(typeof(FrameworkElement),
                new CommandBinding(ApplicationCommands.Help,
                    new ExecutedRoutedEventHandler(Executed),
                    new CanExecuteRoutedEventHandler(CanExecute)));
        }
        #region Filename
        /// <summary>
        /// Filename Attached Dependency Property
        /// </summary>
        public static readonly DependencyProperty FilenameProperty =
          DependencyProperty.RegisterAttached("Filename", typeof(string), typeof(HelpProvider));
        /// <summary>
        /// Gets the Filename property.
        /// </summary>
        public static string GetFilename(DependencyObject d)
        {
            return (string)d.GetValue(FilenameProperty);
        }
        /// <summary>
        /// Sets the Filename property.
        /// </summary>
        public static void SetFilename(DependencyObject d, string value)
        {
            d.SetValue(FilenameProperty, value);
        }
        #endregion
        #region Keyword
        /// <summary>
        /// Keyword Attached Dependency Property
        /// </summary>
        public static readonly DependencyProperty KeywordProperty =
          DependencyProperty.RegisterAttached("Keyword", typeof(string), typeof(HelpProvider));
        /// <summary>
        /// Gets the Keyword property.
        /// </summary>
        public static string GetKeyword(DependencyObject d)
        {
            return (string)d.GetValue(KeywordProperty);
        }
        /// <summary>
        /// Sets the Keyword property.
        /// </summary>
        public static void SetKeyword(DependencyObject d, string value)
        {
            d.SetValue(KeywordProperty, value);
        }
        #endregion
        #region Event
        private static void CanExecute(object sender, CanExecuteRoutedEventArgs args)
        {
            FrameworkElement el = sender as FrameworkElement;
            if (el != null)
            {
                string fileName = FindFilename(el);
                if (!string.IsNullOrEmpty(fileName))
                    args.CanExecute = true;
            }
        }
        private static void Executed(object sender, ExecutedRoutedEventArgs args)
        {
            // Call ShowHelp.
            DependencyObject parent = args.OriginalSource as DependencyObject;
            string keyword = GetKeyword(parent);
            if (!string.IsNullOrEmpty(keyword))
            {
                System.Windows.Forms.Help.ShowHelp(null, FindFilename(parent), keyword);
            }
            else
            {
                System.Windows.Forms.Help.ShowHelp(null, FindFilename(parent));
            }
        }
        private static string FindFilename(DependencyObject sender)
        {
            if (sender != null)
            {
                string fileName = GetFilename(sender);
                if (!string.IsNullOrEmpty(fileName))
                    return fileName;
                return FindFilename(VisualTreeHelper.GetParent(sender));
            }
            return null;
        }
        #endregion
    }
}
 
不解释，自己看，毫无压力。在前台页面里加上下面这句话就好
xmlns:h="clr-namespace:ContextSensitiveHelp"
    h:HelpProvider.Filename="Help1.chm" h:HelpProvider.Keyword="button.html"
同时一定要把帮助文档放到bin\debug里面去，不一定非得是.chm的，word也可以的。