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KretaWeb/Helpers/HtmlHelpers.cs

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+
+using System.Web.Mvc;
+using System.Web.Routing;
+
+namespace Kreta.Web.Helpers
+{
+    public static class HtmlHelpers
+    {
+        public static HtmlHelper<TModel> For<TModel>(this HtmlHelper helper) where TModel : class, new()
+        {
+            return For<TModel>(helper.ViewContext, helper.ViewDataContainer.ViewData, helper.RouteCollection);
+        }
+
+        public static HtmlHelper<TModel> For<TModel>(this HtmlHelper helper, TModel model)
+        {
+            return For<TModel>(helper.ViewContext, helper.ViewDataContainer.ViewData, helper.RouteCollection, model);
+        }
+
+        public static HtmlHelper<TModel> For<TModel>(ViewContext viewContext, ViewDataDictionary viewData, RouteCollection routeCollection) where TModel : class, new()
+        {
+            TModel model = new TModel();
+            return For<TModel>(viewContext, viewData, routeCollection, model);
+        }
+
+        public static HtmlHelper<TModel> For<TModel>(ViewContext viewContext, ViewDataDictionary viewData, RouteCollection routeCollection, TModel model)
+        {
+            var newViewData = new ViewDataDictionary(viewData) { Model = model };
+            ViewContext newViewContext = new ViewContext(
+                viewContext.Controller.ControllerContext,
+                viewContext.View,
+                newViewData,
+                viewContext.TempData,
+                viewContext.Writer);
+            var viewDataContainer = new ViewDataContainer(newViewContext.ViewData);
+            return new HtmlHelper<TModel>(newViewContext, viewDataContainer, routeCollection);
+        }
+
+        private class ViewDataContainer : IViewDataContainer
+        {
+            public ViewDataDictionary ViewData { get; set; }
+
+            public ViewDataContainer(ViewDataDictionary viewData)
+            {
+                ViewData = viewData;
+            }
+        }
+    }
+
+}