提交内容后更新

action:

public ActionResult Index()        {            return View(_entities.GuestSet.ToList());        }        // POST: /GuestBook/Create        public ActionResult Create(Guest guestToCreate)        {            _entities.AddToGuestSet(guestToCreate);            _entities.SaveChanges();            return PartialView("Guests", _entities.GuestSet.ToList());        }

view:

        
Guest Book
    <% using (Ajax.BeginForm("Create", new AjaxOptions {UpdateTargetId="divMessages" }))       { %>            Your Name:        
<%= Html.TextBox("Name")%>                
                Message:        
<%= Html.TextArea("Message")%>            
                        <% } %>    
     
              <% Html.RenderPartial("Guests"); %>    
     

<% foreach (var item in Model) { %>    
     
        
      
<%= Html.Encode(item.Name) %>
                <%= Html.Encode(item.Message) %>    
     
<% } %>

异步提交

action:

public ActionResult Index()        {            return View(_entities.MovieSet.ToList());        }        // GET: /Movie/Create        public ActionResult Create()        {            return View();        }        // POST: /Movie/Create        [AcceptVerbs(HttpVerbs.Post)]        public string Create(Movie movieToCreate)        {            try            {                _entities.AddToMovieSet(movieToCreate);                _entities.SaveChanges();                return "Inserted new movie " + movieToCreate.Title;            }            catch            {                return "Could not insert movie " + movieToCreate.Title;            }        }

view:

create            <%= Html.ValidationSummary("Create was unsuccessful. Please correct the errors and try again.") %>    <% using (Ajax.BeginForm(new AjaxOptions {OnSuccess="createSuccess"}))       {
    %>        
     
            
      
Create Movie
            
      
                Title:                <%= Html.TextBox("Title")%>                <%= Html.ValidationMessage("Title", "*")%>            
            
      
                Director:                <%= Html.TextBox("Director")%>                <%= Html.ValidationMessage("Director", "*")%>            
            
      
                DateReleased:                <%= Html.TextBox("DateReleased")%>                <%= Html.ValidationMessage("DateReleased", "*")%>            
            
      
                            
        
     
    <% } %>    
     
              <%=Html.ActionLink("Back to List", "Index") %>    
     

显示进度条

action:

[AcceptVerbs(HttpVerbs.Post)]        public string Create(Movie movieToCreate)        {            Thread.Sleep(5 * 1000);            try            {                _entities.AddToMovieSet(movieToCreate);                _entities.SaveChanges();                return "Inserted new movie " + movieToCreate.Title;            }            catch            {                return "Could not insert movie " + movieToCreate.Title;            }        }

view:

            
     
        
              
     
    <%= Html.ValidationSummary("Create was unsuccessful. Please correct the errors and try again.") %>    <% using (Ajax.BeginForm(new AjaxOptions {OnSuccess="createSuccess", LoadingElementId="divLoading"}))       {
    %>        
     
            
      
Create Movie
            
      
                Title:                <%= Html.TextBox("Title")%>                <%= Html.ValidationMessage("Title", "*")%>            
            
      
                Director:                <%= Html.TextBox("Director")%>                <%= Html.ValidationMessage("Director", "*")%>            
            
      
                DateReleased:                <%= Html.TextBox("DateReleased")%>                <%= Html.ValidationMessage("DateReleased", "*")%>            
            
      
                            
        
     
    <% } %>    
     
              <%=Html.ActionLink("Back to List", "Index") %>    
     

异步检索内容

action:

public ActionResult Index()        {            return View(_entities.CategorySet.ToList());        }        public ActionResult Details(int id)        {            var products = from p in _entities.ProductSet                           where p.CategoryId == id                           select p;            return PartialView("Details", products);        }

view:

     
      <% foreach (var category in Model)   { %>    
      
        <%= Ajax.ActionLink(category.Name, "Details", new {id=category.Id}, new AjaxOptions {UpdateTargetId="divDetails"}) %>    
<% } %>
     
     
     

异步删除

action:

[AcceptVerbs(HttpVerbs.Delete)]//ajax        public ActionResult Delete(int id)        {            var movieToDelete = (from m in _entities.MovieSet                                 where m.Id == id                                 select m).FirstOrDefault();            _entities.DeleteObject(movieToDelete);            _entities.SaveChanges();            return PartialView("Movies", _entities.MovieSet.ToList());        }        [ActionName("Delete")]        public ActionResult Delete_GET(int id)        {            var movieToDelete = (from m in _entities.MovieSet                                 where m.Id == id                                 select m).FirstOrDefault();            return View(movieToDelete);        }        [AcceptVerbs(HttpVerbs.Post)]        [ActionName("Delete")]        public ActionResult Delete_POST(int id)        {            var movieToDelete = (from m in _entities.MovieSet                                 where m.Id == id                                 select m).FirstOrDefault();            _entities.DeleteObject(movieToDelete);            _entities.SaveChanges();            return RedirectToAction("Index");        }

view:

     
          <% foreach (var movie in Model)       { %>            
      
            <%= movie.Title %>            <%= Ajax.ActionLink("Delete", "Delete", new {id=movie.Id}, new AjaxOptions {HttpMethod="DELETE", Confirm="Delete record?", UpdateTargetId="divMovies" })%>        
        <% } %>
     

Using the AcceptAjax Attribute

attribute:

public sealed class AcceptAjaxAttribute : ActionMethodSelectorAttribute{public override bool IsValidForRequest(ControllerContext➥controllerContext, MethodInfo methodInfo){if (controllerContext == null){throw new ArgumentNullException(“controllerContext”);}return controllerContext.HttpContext.Request.IsAjaxRequest();}}

controller:

public class SelectorController : Controller{private ProductsDBEntities _entities = new ProductsDBEntities();public ActionResult Index(){var categories = _entities.CategorySet.ToList();var products = new List
     
      ();return View(new ProductsVDM(categories, products));}[AcceptAjax][ActionName(“Details”)]public ActionResult Details_Uplevel(int id){var products = from p in _entities.ProductSetwhere p.CategoryId == idselect p;return PartialView(“Details”, products);}[ActionName(“Details”)]public ActionResult Details_Downlevel(int id){var categories = _entities.CategorySet.ToList();var products = from p in _entities.ProductSetwhere p.CategoryId == idselect p;return View(“Index”, new ProductsVDM(categories, products));}}