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ASP.NET MVC (Model-View-Controller website)
 Объект Ajax (это класс AjaxExtensions) в ASP.NET МVС 
посмотрели 8353 раз
обновлено: 5 November 2018
Пример
  cshtml     Файл Views/Home/Index.cshtml
@{
     Layout = null;
}

<!DOCTYPE html>

<html>

<head>
     <meta name="viewport" content="width=device-width" />
     <title>Index</title>
</head>

<body>
     <div id='my_content'></div>

     <!-- подключаем JQuery библиотеку -->
     <script src="@Url.Content("~/Scripts/jquery-3.3.1.min.js")"></script>
     <script src="@Url.Content("~/scripts/jquery.unobtrusive-ajax.js")"></script>

     <!-- у объекта Ajax вызываем метод ActionLink -->
     @Ajax.ActionLink("Нажать сюда", "Show", new AjaxOptions { UpdateTargetId = "my_content" })

</body>
</html>
В примере используется Ajax объект.
Каждое представление содержит Ajax объект
WebViewPage<TModel> - это представление

Синтаксис
public abstract class WebViewPage<TModel> : WebViewPage

Properties
public AjaxHelper<TModel> Ajax { get; set; }
Gets or sets the System.Web.Mvc.AjaxHelper object that is used to render HTML markup using Ajax. Полное описание ...
public HtmlHelper<TModel> Html { get; set; }
Gets or sets the System.Web.Mvc.HtmlHelper object that is used to render HTML elements. Полное описание ...
public TModel Model { get; }
Gets the Model property of the associated System.Web.Mvc.ViewDataDictionary object. Полное описание ...
public ViewDataDictionary<TModel> ViewData { get; set; }
Gets or sets a dictionary that contains data to pass between the controller and the view. Полное описание ...

Methods
public override void InitHelpers();
Initializes the System.Web.Mvc.AjaxHelper, System.Web.Mvc.HtmlHelper, and System.Web.Mvc.UrlHelper classes.
protected override void SetViewData(ViewDataDictionary viewData);
Sets the view data. Полное описание ...
Класс AjaxHelper и методы
Класс AjaxExtensions содержит AJAX методы для ASP.NET MVC приложения
  C#  
public static class AjaxExtensions
{
     public static MvcHtmlString ActionLink(this AjaxHelper ajaxHelper, string linkText, string actionName, AjaxOptions ajaxOptions);
     public static MvcHtmlString ActionLink(this AjaxHelper ajaxHelper, string linkText, string actionName, object routeValues, AjaxOptions ajaxOptions);
     public static MvcHtmlString ActionLink(this AjaxHelper ajaxHelper, string linkText, string actionName, RouteValueDictionary routeValues, AjaxOptions ajaxOptions);
     public static MvcHtmlString ActionLink(this AjaxHelper ajaxHelper, string linkText, string actionName, string controllerName, AjaxOptions ajaxOptions);
     public static MvcHtmlString ActionLink(this AjaxHelper ajaxHelper, string linkText, string actionName, object routeValues, AjaxOptions ajaxOptions, object htmlAttributes);
     public static MvcHtmlString ActionLink(this AjaxHelper ajaxHelper, string linkText, string actionName, RouteValueDictionary routeValues, AjaxOptions ajaxOptions, IDictionary<string, object> htmlAttributes);
     public static MvcHtmlString ActionLink(this AjaxHelper ajaxHelper, string linkText, string actionName, string controllerName, object routeValues, AjaxOptions ajaxOptions);
     public static MvcHtmlString ActionLink(this AjaxHelper ajaxHelper, string linkText, string actionName, string controllerName, RouteValueDictionary routeValues, AjaxOptions ajaxOptions);
     public static MvcHtmlString ActionLink(this AjaxHelper ajaxHelper, string linkText, string actionName, string controllerName, object routeValues, AjaxOptions ajaxOptions, object htmlAttributes);
     public static MvcHtmlString ActionLink(this AjaxHelper ajaxHelper, string linkText, string actionName, string controllerName, RouteValueDictionary routeValues, AjaxOptions ajaxOptions, IDictionary<string, object> htmlAttributes);
     public static MvcHtmlString ActionLink(this AjaxHelper ajaxHelper, string linkText, string actionName, string controllerName, string protocol, string hostName, string fragment, object routeValues, AjaxOptions ajaxOptions, object htmlAttributes);
     public static MvcHtmlString ActionLink(this AjaxHelper ajaxHelper, string linkText, string actionName, string controllerName, string protocol, string hostName, string fragment, RouteValueDictionary routeValues, AjaxOptions ajaxOptions, IDictionary<string, object> htmlAttributes);

     public static MvcForm BeginForm(this AjaxHelper ajaxHelper, AjaxOptions ajaxOptions);
     public static MvcForm BeginForm(this AjaxHelper ajaxHelper, string actionName, AjaxOptions ajaxOptions);
     public static MvcForm BeginForm(this AjaxHelper ajaxHelper, string actionName, object routeValues, AjaxOptions ajaxOptions);
     public static MvcForm BeginForm(this AjaxHelper ajaxHelper, string actionName, RouteValueDictionary routeValues, AjaxOptions ajaxOptions);
     public static MvcForm BeginForm(this AjaxHelper ajaxHelper, string actionName, string controllerName, AjaxOptions ajaxOptions);
     public static MvcForm BeginForm(this AjaxHelper ajaxHelper, string actionName, object routeValues, AjaxOptions ajaxOptions, object htmlAttributes);
     public static MvcForm BeginForm(this AjaxHelper ajaxHelper, string actionName, RouteValueDictionary routeValues, AjaxOptions ajaxOptions, IDictionary<string, object> htmlAttributes);
     public static MvcForm BeginForm(this AjaxHelper ajaxHelper, string actionName, string controllerName, object routeValues, AjaxOptions ajaxOptions);
     public static MvcForm BeginForm(this AjaxHelper ajaxHelper, string actionName, string controllerName, RouteValueDictionary routeValues, AjaxOptions ajaxOptions);
     public static MvcForm BeginForm(this AjaxHelper ajaxHelper, string actionName, string controllerName, object routeValues, AjaxOptions ajaxOptions, object htmlAttributes);
     public static MvcForm BeginForm(this AjaxHelper ajaxHelper, string actionName, string controllerName, RouteValueDictionary routeValues, AjaxOptions ajaxOptions, IDictionary<string, object> htmlAttributes);

     public static MvcForm BeginRouteForm(this AjaxHelper ajaxHelper, string routeName, AjaxOptions ajaxOptions);
     public static MvcForm BeginRouteForm(this AjaxHelper ajaxHelper, string routeName, object routeValues, AjaxOptions ajaxOptions);
     public static MvcForm BeginRouteForm(this AjaxHelper ajaxHelper, string routeName, RouteValueDictionary routeValues, AjaxOptions ajaxOptions);
     public static MvcForm BeginRouteForm(this AjaxHelper ajaxHelper, string routeName, object routeValues, AjaxOptions ajaxOptions, object htmlAttributes);
     public static MvcForm BeginRouteForm(this AjaxHelper ajaxHelper, string routeName, RouteValueDictionary routeValues, AjaxOptions ajaxOptions, IDictionary<string, object> htmlAttributes);

     public static MvcHtmlString GlobalizationScript(this AjaxHelper ajaxHelper);
     public static MvcHtmlString GlobalizationScript(this AjaxHelper ajaxHelper, CultureInfo cultureInfo);

     public static MvcHtmlString RouteLink(this AjaxHelper ajaxHelper, string linkText, object routeValues, AjaxOptions ajaxOptions);
     public static MvcHtmlString RouteLink(this AjaxHelper ajaxHelper, string linkText, RouteValueDictionary routeValues, AjaxOptions ajaxOptions);
     public static MvcHtmlString RouteLink(this AjaxHelper ajaxHelper, string linkText, string routeName, AjaxOptions ajaxOptions);
     public static MvcHtmlString RouteLink(this AjaxHelper ajaxHelper, string linkText, object routeValues, AjaxOptions ajaxOptions, object htmlAttributes);
     public static MvcHtmlString RouteLink(this AjaxHelper ajaxHelper, string linkText, RouteValueDictionary routeValues, AjaxOptions ajaxOptions, IDictionary<string, object> htmlAttributes);
     public static MvcHtmlString RouteLink(this AjaxHelper ajaxHelper, string linkText, string routeName, AjaxOptions ajaxOptions, IDictionary<string, object> htmlAttributes);
     public static MvcHtmlString RouteLink(this AjaxHelper ajaxHelper, string linkText, string routeName, AjaxOptions ajaxOptions, object htmlAttributes);
     public static MvcHtmlString RouteLink(this AjaxHelper ajaxHelper, string linkText, string routeName, object routeValues, AjaxOptions ajaxOptions);
     public static MvcHtmlString RouteLink(this AjaxHelper ajaxHelper, string linkText, string routeName, RouteValueDictionary routeValues, AjaxOptions ajaxOptions);
     public static MvcHtmlString RouteLink(this AjaxHelper ajaxHelper, string linkText, string routeName, object routeValues, AjaxOptions ajaxOptions, object htmlAttributes);
     public static MvcHtmlString RouteLink(this AjaxHelper ajaxHelper, string linkText, string routeName, RouteValueDictionary routeValues, AjaxOptions ajaxOptions, IDictionary<string, object> htmlAttributes);
     public static MvcHtmlString RouteLink(this AjaxHelper ajaxHelper, string linkText, string routeName, string protocol, string hostName, string fragment, RouteValueDictionary routeValues, AjaxOptions ajaxOptions, IDictionary<string, object> htmlAttributes);
}
 
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• What is MVC in ASP.NET ?
• Creating a new application ASP.NET MVC
Controller
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View
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• Create a variable and display it in View in the MVC ASP.NET
• @using inside View in the MVC ASP.NET
• @foreach(var item in arr) {...} inside the View in the MVC ASP.NET
• @DateTime.Now inside the View in the MVC ASP.NET
• How to find the name of the controller inside the View in the MVC ASP.NET
• Display [DateTime | Date only | Time only] in the desired format in the MVC ASP.NET
Views
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...
• Master View using @RenderBody() in the MVC ASP.NET
• Master View using @RenderBody() and additional sections @RenderSection in the MVC ASP.NET
...
• Partial View in the MVC ASP.NET. Embed a partial representation @Html.Partial("My1") and @{ Html.RenderPartial("My1");}
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...
• Strongly-typed partial view in the MVC ASP.NET
Create the ViewModels folder. This is a good programming style for transferring data from the Controller to the View
• Create the ViewModels folder. Create your class in the ViewModels folder. This is a good programming style for transferring data from the Controller to the View. Web Application ASP.NET MVC
Attributes. Use the attributes in the ViewModels (to show the combo buttons in the view). Using attributes in the Controller (to improve methods)
• Attribute [Display(Name = "... ")] is described in the C# class and used in @Html.LabelFor, @Html.DisplayNameFor in the MVC ASP.NET
• The attribute [Required(ErrorMessage = "Please enter a name")] is described for a property in the C# class and requires the property to be populated if the ErrorMessage error in the MVC ASP.NET is not filled in the screen
• The attribute [Remote("IsValidAuthor", "Home", ErrorMessage = "Enter correct author of book")] is described for a property in a C# class and checks that property for correctness on the server via the IsValidAuthor method in conroller Home, if the method returns false, then there will be an ErrorMessage error on the screen in the MVC ASP.NET
• The [HiddenInput(DisplayValue=false)] attribute is described in the C# class and is used in @Html.HiddenFor in the MVC ASP.NET
Routing
Links and redirects in the view
• @Html.ActionLink inside the View in the MVC ASP.NET
• @Html.RouteLink inside the View in the MVC ASP.NET
• @Url.Action inside the View in the MVC ASP.NET
• @Url.RouteUrl inside the View in the MVC ASP.NET
• @Url.Content inside the View in the MVC ASP.NET
Bootstrap in MVC
• Add and include Bootstrap (css, js files) to ASP.NET MVC project
JQuery in MVC
• Connecting JQuery to ASP.NET MVC project
• Using JQuery, we get the contents of the View in the MVC ASP.NET. Example: $.get("/Home/Index", function (data) {...}) ...
MVC AjaxExtensions class (asynchronous data retrieval)
• Plugging jQuery & AJAX into ASP.NET MVC project
• Using Ajax.ActionLink, get the contents of the View and insert it into the div in the MVC ASP.NET
• Ajax object (this is the AjaxExtensions class) in MVC ASP.NET
Database (Entity Framework) in MVC ASP.NET
• Entity Framework in the ASP.NET MVC application. Using Code First (we write c# code, and the tables in the database are created by ourselves)
Authentication (login/register/logout)
• What is authentication (login/register/logout) in the MVC ASP.NET?
• Example: Authentication (login/register/logout) in MVC ASP.NET using FormsAuthentication.SetAuthCookie(model. Name, true);
Authorization (admin/user/...)
• What is authorization (admin/user/...) in the MVC ASP.NET?
• Example: Authorization (admin/user/...) in MVC ASP.NET using the RoleProvider role provider
Writing the appendix "Planning tasks" in the MVC ASP.NET
• Creating an empty application "Planning tasks, tasks" | ASP.NET MVC | Visual Studio 2017
• Adding Bootstrap & jQuery libraries to the application "Scheduling tasks" | ASP.NET MVC | Visual Studio 2017
• Create a master view (main menu & button login using Bootstrap) in the application "Planning tasks" | ASP.NET MVC | Visual Studio 2017
• Add the "Home" controller and the "Index" view (the main page in the application "Planning tasks, tasks" | ASP.NET MVC | Visual Studio 2017
• Add the Entity Framework library and create a connection to the Database in the application "Planning tasks" | ASP.NET MVC | Visual Studio 2017
• Authentication (login/register/logout) in the application "Scheduling tasks" | ASP.NET MVC | Visual Studio 2017
• Add the class "Task" to save tasks, tasks to the database in the application "Planning tasks, tasks" | ASP.NET MVC | Visual Studio 2017
• Adding nUnit in the application "Planning tasks, tasks" | ASP.NET MVC | Visual Studio 2017
Additional topics, questions
• Why is MVC ASP.NET better ASP.NET Web Forms?
• Choosing between ASP.NET Core and ASP.NET?
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• How do I find the local address and port of your ASP.NET MVC application?
• Scriptsindex.d.ts(8,1): error TS1008: Build:Unexpected token; "module, class, interface, enum, import or statement" expected. Scriptsindex.d.ts(8,13): error TS1005: Build:";" expected. in Visual Studio 2017 in the ASP.NET MVC app
• Error "unable to connect to web server "iis express" | ASP.NET MVC | Visual Studio 2017
• Error "This site can"t be reached" when run ASP.NET application | Solution: Recreate the Self-Signed HTTPS Certificate for localhost in IIS Express
WWW Sites to Learn ASP.NET MVC
• Sites to learn ASP.NET MVC
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