Made Files Compatible to be Opened in Visual Studio Later 2015 or later.

Areas/HelpPage/ApiDescriptionExtensions.cs

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+using System;
+using System.Text;
+using System.Web;
+using System.Web.Http.Description;
+
+namespace JSGridWebAPISample.Areas.HelpPage
+{
+    public static class ApiDescriptionExtensions
+    {
+        /// <summary>
+        /// Generates an URI-friendly ID for the <see cref="ApiDescription"/>. E.g. "Get-Values-id_name" instead of "GetValues/{id}?name={name}"
+        /// </summary>
+        /// <param name="description">The <see cref="ApiDescription"/>.</param>
+        /// <returns>The ID as a string.</returns>
+        public static string GetFriendlyId(this ApiDescription description)
+        {
+            string path = description.RelativePath;
+            string[] urlParts = path.Split('?');
+            string localPath = urlParts[0];
+            string queryKeyString = null;
+            if (urlParts.Length > 1)
+            {
+                string query = urlParts[1];
+                string[] queryKeys = HttpUtility.ParseQueryString(query).AllKeys;
+                queryKeyString = String.Join("_", queryKeys);
+            }
+
+            StringBuilder friendlyPath = new StringBuilder();
+            friendlyPath.AppendFormat("{0}-{1}",
+                description.HttpMethod.Method,
+                localPath.Replace("/", "-").Replace("{", String.Empty).Replace("}", String.Empty));
+            if (queryKeyString != null)
+            {
+                friendlyPath.AppendFormat("_{0}", queryKeyString);
+            }
+            return friendlyPath.ToString();
+        }
+    }
+}

Areas/HelpPage/App_Start/HelpPageConfig.cs

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+using System;
+using System.Collections.Generic;
+using System.Net.Http.Headers;
+using System.Web;
+using System.Web.Http;
+
+namespace JSGridWebAPISample.Areas.HelpPage
+{
+    /// <summary>
+    /// Use this class to customize the Help Page.
+    /// For example you can set a custom <see cref="System.Web.Http.Description.IDocumentationProvider"/> to supply the documentation
+    /// or you can provide the samples for the requests/responses.
+    /// </summary>
+    public static class HelpPageConfig
+    {
+        public static void Register(HttpConfiguration config)
+        {
+            //// Uncomment the following to use the documentation from XML documentation file.
+            //config.SetDocumentationProvider(new XmlDocumentationProvider(HttpContext.Current.Server.MapPath("~/App_Data/XmlDocument.xml")));
+
+            //// Uncomment the following to use "sample string" as the sample for all actions that have string as the body parameter or return type.
+            //// Also, the string arrays will be used for IEnumerable<string>. The sample objects will be serialized into different media type 
+            //// formats by the available formatters.
+            //config.SetSampleObjects(new Dictionary<Type, object>
+            //{
+            //    {typeof(string), "sample string"},
+            //    {typeof(IEnumerable<string>), new string[]{"sample 1", "sample 2"}}
+            //});
+
+            //// Uncomment the following to use "[0]=foo&[1]=bar" directly as the sample for all actions that support form URL encoded format
+            //// and have IEnumerable<string> as the body parameter or return type.
+            //config.SetSampleForType("[0]=foo&[1]=bar", new MediaTypeHeaderValue("application/x-www-form-urlencoded"), typeof(IEnumerable<string>));
+
+            //// Uncomment the following to use "1234" directly as the request sample for media type "text/plain" on the controller named "Values"
+            //// and action named "Put".
+            //config.SetSampleRequest("1234", new MediaTypeHeaderValue("text/plain"), "Values", "Put");
+
+            //// Uncomment the following to use the image on "../images/aspNetHome.png" directly as the response sample for media type "image/png"
+            //// on the controller named "Values" and action named "Get" with parameter "id".
+            //config.SetSampleResponse(new ImageSample("../images/aspNetHome.png"), new MediaTypeHeaderValue("image/png"), "Values", "Get", "id");
+
+            //// Uncomment the following to correct the sample request when the action expects an HttpRequestMessage with ObjectContent<string>.
+            //// The sample will be generated as if the controller named "Values" and action named "Get" were having string as the body parameter.
+            //config.SetActualRequestType(typeof(string), "Values", "Get");
+
+            //// Uncomment the following to correct the sample response when the action returns an HttpResponseMessage with ObjectContent<string>.
+            //// The sample will be generated as if the controller named "Values" and action named "Post" were returning a string.
+            //config.SetActualResponseType(typeof(string), "Values", "Post");
+        }
+    }
+}

Areas/HelpPage/Controllers/HelpController.cs

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+using System;
+using System.Web.Http;
+using System.Web.Mvc;
+using JSGridWebAPISample.Areas.HelpPage.Models;
+
+namespace JSGridWebAPISample.Areas.HelpPage.Controllers
+{
+    /// <summary>
+    /// The controller that will handle requests for the help page.
+    /// </summary>
+    public class HelpController : Controller
+    {
+        public HelpController()
+            : this(GlobalConfiguration.Configuration)
+        {
+        }
+
+        public HelpController(HttpConfiguration config)
+        {
+            Configuration = config;
+        }
+
+        public HttpConfiguration Configuration { get; private set; }
+
+        public ActionResult Index()
+        {
+            return View(Configuration.Services.GetApiExplorer().ApiDescriptions);
+        }
+
+        public ActionResult Api(string apiId)
+        {
+            if (!String.IsNullOrEmpty(apiId))
+            {
+                HelpPageApiModel apiModel = Configuration.GetHelpPageApiModel(apiId);
+                if (apiModel != null)
+                {
+                    return View(apiModel);
+                }
+            }
+
+            return View("Error");
+        }
+    }
+}

Areas/HelpPage/HelpPage.css

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+pre.wrapped {
+    white-space: -moz-pre-wrap;
+    white-space: -pre-wrap;
+    white-space: -o-pre-wrap;
+    white-space: pre-wrap;
+}
+
+.warning-message-container {
+    margin-top: 20px;
+    padding: 0 10px;
+    color: #525252;
+    background: #EFDCA9; 
+    border: 1px solid #CCCCCC;
+}
+
+.help-page-table {
+    width: 100%;
+    border-collapse: collapse;
+    text-align: left;
+    margin: 0px 0px 20px 0px;
+    border-top: 2px solid #D4D4D4;
+}
+
+.help-page-table th {
+    text-align: left;
+    font-weight: bold;
+    border-bottom: 2px solid #D4D4D4;
+    padding: 8px 6px 8px 6px;
+}
+
+.help-page-table td {
+    border-bottom: 2px solid #D4D4D4;
+    padding: 15px 8px 15px 8px;
+    vertical-align: top;
+}
+
+.help-page-table pre, .help-page-table p {
+    margin: 0px;
+    padding: 0px;
+    font-family: inherit;
+    font-size: 100%;
+}
+
+.help-page-table tbody tr:hover td {
+    background-color: #F3F3F3;
+}
+
+a:hover {
+    background-color: transparent;
+}
+
+.sample-header {
+    border: 2px solid #D4D4D4;
+    background: #76B8DB;
+    color: #FFFFFF;
+    padding: 8px 15px;
+    border-bottom: none;
+    display: inline-block;
+    margin: 10px 0px 0px 0px;
+}
+
+.sample-content {
+    display: block;
+    border-width: 0;
+    padding: 15px 20px;
+    background: #FFFFFF;
+    border: 2px solid #D4D4D4;
+    margin: 0px 0px 10px 0px;
+}
+
+.api-name {
+    width: 40%;
+}
+
+.api-documentation {
+    width: 60%;
+}
+
+.parameter-name {
+    width: 20%;
+}
+
+.parameter-documentation {
+    width: 50%;
+}
+
+.parameter-source {
+    width: 30%;
+}

Areas/HelpPage/HelpPageAreaRegistration.cs

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+using System.Web.Http;
+using System.Web.Mvc;
+
+namespace JSGridWebAPISample.Areas.HelpPage
+{
+    public class HelpPageAreaRegistration : AreaRegistration
+    {
+        public override string AreaName
+        {
+            get
+            {
+                return "HelpPage";
+            }
+        }
+
+        public override void RegisterArea(AreaRegistrationContext context)
+        {
+            context.MapRoute(
+                "HelpPage_Default",
+                "Help/{action}/{apiId}",
+                new { controller = "Help", action = "Index", apiId = UrlParameter.Optional });
+
+            HelpPageConfig.Register(GlobalConfiguration.Configuration);
+        }
+    }
+}