Add Notifications

Using toastr library

Author: snoopydo

README.md

@@ -1,7 +1,45 @@
 WebHelpers
 ==========
 
-Paging - like stackoverflow
++ Paging - like stackoverflow
++ Notifications 
+
+
+Notifications
+-------------
+
+Uses the Javascript library toastr from [https://github.com/CodeSeven/toastr](https://github.com/CodeSeven/toastr)
+
+
+Controller:
+
+
+    using dks.Web.Extensions;
+
+    public class HomeController : Controller
+    {
+        //
+        // GET: /Home/
+        public ActionResult Index()
+        {
+
+			this.AddNotification("Welcome Guest");
+            return View();
+        }      
+    }
+
+
+View:
+
+
+    <link href="~/content/toastr.css" rel="stylesheet" />
+	<script src="~/Scripts/jquery-1.6.4.js"></script>
+	<script src="~/Scripts/toastr.js"></script>
+
+
+    @Html.RenderToasts()
+
+![](notifications.gif)
 
 
 

WebHelpers/Notifications.Toastr.cs

@@ -0,0 +1,95 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Web;
+using System.Web.Mvc;
+
+namespace dks.Web.Extensions
+{
+
+	// Requires toastr.js to be included.
+
+
+	public static class Notifications
+	{
+
+		public enum Notification
+		{
+			Success,
+			Info,
+			Warning,
+			Error
+		}
+
+		[Serializable]
+		private struct NotificationMessage
+		{
+			public Notification notification;
+			public String message;
+		}
+
+		private static readonly string notificationKey = "_Notifications_toastr";
+
+
+		public static HtmlString RenderToasts(this HtmlHelper helper)
+		{
+			var notifications = helper.ViewContext.TempData[notificationKey] as List<NotificationMessage>;
+			if (notifications != null && notifications.Count > 0)
+			{
+				StringBuilder sb;
+
+				sb = new StringBuilder();
+				sb.AppendLine("<script type=\"text/javascript\">");
+
+				foreach (var notification in notifications)
+				{
+					switch (notification.notification)
+					{
+						case Notification.Info:
+							sb.AppendFormat("\ttoastr.info('{0}');\n", notification.message);
+							break;
+						case Notification.Warning:
+							sb.AppendFormat("\ttoastr.warning('{0}');\n", notification.message);
+							break;
+						case Notification.Success:
+							sb.AppendFormat("\ttoastr.success('{0}');\n", notification.message);
+							break;
+						case Notification.Error:
+							sb.AppendFormat("\ttoastr.error('{0}');\n", notification.message);
+							break;
+
+					}
+				}
+				sb.AppendLine("</script>");
+
+				return new HtmlString(sb.ToString());
+			}
+
+
+			return new HtmlString("");
+		}
+
+		public static void AddNotification(this Controller controller, String message)
+		{
+			AddNotification(controller, Notification.Success, message);
+		}
+
+
+		public static void AddNotification(this Controller controller, Notification notification, String message)
+		{
+			if (!string.IsNullOrWhiteSpace(message))
+			{
+				var notifications = controller.TempData[notificationKey] as List<NotificationMessage>;
+				if (notifications == null)
+				{
+					notifications = new List<NotificationMessage>();
+					controller.TempData[notificationKey] = notifications;
+				}
+
+				notifications.Add(new NotificationMessage() { notification = notification, message = message });
+			}
+		}
+
+	}
+}

WebHelpers/dksWebHelpers.csproj

@@ -48,6 +48,7 @@
     <Compile Include="PageSizer.cs" />
     <Compile Include="PagingExtensions.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="Notifications.Toastr.cs" />
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 

WebHelpersDemo/Controllers/HomeController.cs

@@ -3,19 +3,26 @@
 using System.Linq;
 using System.Web;
 using System.Web.Mvc;
+using dks.Web.Extensions;
+
 
 namespace WebHelpers.Controllers
 {
-    public class HomeController : Controller
-    {
-        //
-        // GET: /Home/
+	public class HomeController : Controller
+	{
+		//
+		// GET: /Home/
+
+		public ActionResult Index()
+		{
+
+			this.AddNotification("Welcome Guest");	// default is Success
+			this.AddNotification(Notifications.Notification.Error, "Error Guest");
+			this.AddNotification(Notifications.Notification.Info, "Info Guest");
+			this.AddNotification(Notifications.Notification.Warning, "Warning Guest");
+			return View();
+		}
 
-        public ActionResult Index()
-        {
-            return View();
-        }
 
-      
-    }
+	}
 }