o_19mgorv9t13a3ko71fev19l81mqa.pdf

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If the debug attribute in the Web.config file is set to false when you start the debugger, then Visual Studio will display the dialog shown in Figure 14-6. Select the option which allows Visual Studio to edit the Web.config file and click the OK button and the debugger will start. Figure 14-6. The dialog that Visual Studio displays when the Web.config File disables debugging At this point, your application will be displayed in a new browser window, as shown in Figure 14-7. Figure 14-7. Running the debugger The debugger will be attached to your application, but you will not notice any difference until the debugger breaks. (I explain what this means in the next section.) To stop the debugger, select Stop Debugging from the Visual Studio Debug menu or close the browser window. Causing the Visual Studio Debugger to Break An application that is running with the debugger attached will behave normally until a break occurs, at which point the execution 346
of the application is halted and control is turned over to the debugger. While in this state, you can inspect and control the state of the application. Breaks occur for two main reasons: when a breakpoint is reached and when an unhandled exception arises. You will see examples of both in the following sections. Using Breakpoints A breakpoint is an instruction that tells the debugger to halt execution of the application and hand control to the programmer. You can inspect the state of the application and see what is happening and, optionally, resume execution again. To create a breakpoint, right-click a code statement and select Breakpoint Insert Breakpoint from the pop-up menu. As a demonstration, apply a breakpoint to the first statement in the Index action method of the Home controller and you will see a red dot appear in the margin of the text editor, as shown in Figure 14-8. Figure 14-8. Applying a breakpoint to the first statement in the Index action method To see the effect of the breakpoint, start the debugger by selecting Start Debugging from the Visual Studio Debug menu. The application will run until the statement to which the breakpoint has been applied is reached, at which point the debugger will break, halting execution of the application and transferring control. Visual Studio highlights the point at which the execution has been stopped with yellow highlights, as shown in Figure 14-9. 347
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Pro ASP.NET MVC 5 Adam Freeman 2
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Dedicated to my lovely wife, Jacqui
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Contents About the Author About the
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Preparing the Example Project Defin
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Chapter 9: SportsStore: Completing
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Constraining Routes Constraining a
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Using Other Filter Features Filteri
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Creating the Ajax Form Understandin
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Index 18
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About the Technical Reviewer Fabio
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What Is Wrong with ASP.NET Web Form
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storage and querying language for s
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There are some good reasons for car
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Where Can I Get the Example Code? Y
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Figure 2-1. The Visual Studio ASP.N
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Figure 2-3. The initial file and fo
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Figure 2-6. Adding a controller to
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} } } return View(); A good way of
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Figure 2-9. The MVC Framework tryin
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Visual Studio will create a file ca
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Afternoon"; } } } return View(); I
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Figure 2-14. Adding to the view HTM
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public class HomeController : Contr
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} Will you attend? @Html.DropDown
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Figure 2-18. Setting the default st
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type without needing to qualify the
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[Required(ErrorMessage = "Please en
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Figure 2-21. The validation summary
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Tip You can drag JavaScript and CSS
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expect files to be in certain locat
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RSVP @using (Html.BeginForm()) {
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Thanks body { background-colo
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CHAPTER 3 The MVC Pattern Before I
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ASP.NET MVC doesn’t apply any con
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as thinly disguised Smart UI applic
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this case PasswordResetHelper. I do
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Web server and database. Integratio
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public class AdminControllerTests {
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The drawback of TDD is that it requ
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} } } return "Navigate to a URL to
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namespace LanguageFeatures.Controll
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} set { name = value; } } } public
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The listing demonstrates how to con
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using System.Collections; using Sys
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using System.Collections.Generic; n
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public static IEnumerable FilterByC
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Products = new List { new Product {
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... In this example, myAnonType is
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public string Index() { return "Nav
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Max Min Returns the largest or smal
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usiness while the background work i
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natural syntax, but they do not cha
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} Defining the Controller I am goin
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Note Notice that I declare the view
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Figure 5-4. Creating a new layout S
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Figure 5-5. The Effect of Applying
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Figure 5-6. Adding a view that reli
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Figure 5-9. The content in the layo
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public ActionResult DemoExpression(
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The containing element has data at
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Price@Model.Price Stock Level @sw
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} else { @ViewBag.ProductCount }
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Figure 5-13. Generating elements us
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CHAPTER 6 Essential Tools for MVC I
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LinqValueCalculator to determine th
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In the sections that follow, I expl
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just fine with MVC 5. I have used t
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namespace EssentialTools.Infrastruc
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Figure 6-2. The effect of running t
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I can configure the objects that Ni
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} } The FlexibleDiscountHelper clas
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public object GetService(Type servi
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Figure 6-4. Creating the unit test
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} } } // assert Assert.AreEqual(tot
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wrong"); wrong"); wrong"); } Assert
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} } } Testing and Fixing the Code I
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Listing 6-31. The Contents of the L
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Price = 48.95M}, new Product {Name
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To summarize the example, the Objec
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This is the same behavior used in t
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CHAPTER 7 SportsStore: A Real Appli
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e included in new projects are exce
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public class NinjectDependencyResol
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Figure 7-4. Creating the Product cl
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IProductRepository interface with t
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Figure 7-5. Adding the Views/Produc
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Figure 7-6. Viewing the basic appli
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Figure 7-8. Setting up the SportsSt
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Visual Studio will display a design
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Creating the Entity Framework Conte
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private EFDbContext context = new E
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public class ProductController : Co
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A view model is not part of the dom
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... ... Every namespac
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(ProductsListViewModel)controller.L
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Figure 7-14. Displaying page naviga
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Figure 7-15. The new URL scheme dis
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} @foreach (var p in Model.Products
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Figure 7-18. Creating a partial vie
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Summary In this chapter, I built mo
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using System.Collections.Generic; u
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Assert.AreEqual(pageInfo.TotalPages
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); "", new { controller = "Product"
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} } public string Menu() { return "
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has the effect of declaring a depen
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Figure 8-3. The category links High
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Now that I am providing information
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} ... CurrentCategory = category };
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Continue Shopping button to return
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Arrange - create a new cart Cart ta
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@Model.Name @Model.Price.ToString("
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For the AddToCart and RemoveFromCar
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and the total cost for the cart. Th
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CHAPTER 9 SportsStore: Completing t
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using System.Linq; using System.Web
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public void Adding_Product_To_Cart_
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shopping I added a new column to e
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@ViewBag.Title SPORTS STORE @
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. . . This change generates a link
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@Html.TextBoxFor(x => x.Zip, new {@
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} ViewBag.Title = "SportStore: Chec
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public string Country { get; set; }
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if (emailSettings.WriteAsFile) { sm
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} } } I created an EmailSettings ob
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ViewResult result = target.Checkout
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of the SportsStore.WebUI project an
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Thanks! Thanks for placing your ord
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Figure 10-1. Displaying the SportsS
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waking moment. My advice is to acce
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case, however, I hide the standard
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Bootstrap that the div element shou
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.Select(x => x.Category) .Distinct(
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@Html.ActionLink("Home", "List", "
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variations on the same basic theme.
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} This view uses a Razor foreach
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Figure 10-9. The effect of mobile-s
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public class AdminController : Cont
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Right-click on the Views/Admin fold
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Figure 11-3. Rendering the scaffold
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Figure 11-4. Rendering the modified
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Act Product p1 = target.Edit(1).Vie
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} } public string Category { get; s
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Figure 11-7. Displaying the editor
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Framework does know about and updat
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ActionResult result = target.Edit(p
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using System.ComponentModel.DataAnn
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Install-Package Microsoft.jQuery.Un
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Page 298 and 299: Listing 11-19. Implementing Deletio
Page 300 and 301: You can see the delete feature by c
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Page 304 and 305: Figure 12-1. The effect of the Auth
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Page 310 and 311: mock implementations of the IAuthPr
Page 312 and 313: Figure 12-3. Adding columns to the
Page 314 and 315: No Image } else { } @Html.Acti
Page 316 and 317: } } I have added a new parameter to
Page 318 and 319: [TestClass] public class ImageTests
Page 320 and 321: Figure 12-4. Adding an image to a p
Page 322 and 323: CHAPTER 13 Deployment The final, an
Page 324 and 325: Figure 13-2. Creating a new web sit
Page 326 and 327: Figure 13-4. The effect of creating
Page 328 and 329: ); [ProductID] INT IDENTITY (1, 1)
Page 330 and 331: Figure 13-8. The Publish Web dialog
Page 332 and 333: Figure 13-10. Settings for the depl
Page 334 and 335: Figure 13-12. Previewing the deploy
Page 336 and 337: Figure 13-14. The SportsStore appli
Page 338 and 339: Figure 14-1. Selecting the project
Page 340 and 341: which packages are used by selectin
Page 342 and 343: } Or you can disable any layout for
Page 344 and 345: using System.Web.Mvc; namespace Deb
Page 348 and 349: Figure 14-9. Hitting a breakpoint N
Page 350 and 351: Figure 14-11. The effect of assigni
Page 352 and 353: selecting Delete Breakpoint from th
Page 354 and 355: Figure 14-15. Enabling Edit and Con
Page 356 and 357: Figure 14-16. The effect of correct
Page 358 and 359: Figure 14-18. Selecting multiple br
Page 360 and 361: CHAPTER 15 URL Routing Before the i
Page 362 and 363: public class HomeController : Contr
Page 364 and 365: Figure 15-3. The segments in an exa
Page 366 and 367: started, which leads to the RouteCo
Page 368 and 369: namespace UrlsAndRoutes.Tests { [Te
Page 370 and 371: TestRouteMatch and TestRouteFail co
Page 372 and 373: Figure 15-5. Using default values t
Page 374 and 375: In Listing 15-12, I defined a new r
Page 376 and 377: Notice that, once again, I have pla
Page 378 and 379: Figure 15-8. Displaying the value o
Page 380 and 381: namespace UrlsAndRoutes { public cl
Page 382 and 383: ... [TestMethod] public void TestIn
Page 384 and 385: Figure 15-11. The error displayed w
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Page 392 and 393: namespace UrlsAndRoutes.Infrastruct
Page 394 and 395: Using Attribute Routing All of the
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Caution The Route attribute stops c
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} } public ActionResult List() { Vi
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... [Route("∼/Test")] ... Prefixi
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using System.Web.Routing; namespace
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Now, this may seem like a long path
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"Admin") @Html.ActionLink("This
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... Start the application again and
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ActionName The controller is: @Vi
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} For the routing in the example ap
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how outgoing URLs are generated. To
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and repeat the process. If the clas
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ActionName The controller is: @
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The MVC Framework supports organizi
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To demonstrate the way that areas i
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able to request /Admin/Home/Index a
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You do not need to take any special
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intercept requests for disk files b
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outes.Add(new Route("SayHello", new
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http://www.amazon.com/books/pro-asp
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CHAPTER 17 Controllers and Actions
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System.Web.Routing.RequestContext o
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namespace ControllersAndActions.Con
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Retrieve posted data from Request.F
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After a controller has finished pro
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public string Url { get; set; } pub
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RedirectToRouteResult Issues an HTT
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shown in this test method. using Sy
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You can send an object to the view
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Arrange - create the controller Exa
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Listing 17-20. Redirecting to a Lit
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Act - call the action method Redire
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Listing 17-24. Sending a Specific S
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CHAPTER 18 Filters Filters inject e
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} } To create the view that will ga
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} } public ViewResult Create() { //
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} } void OnAuthorization(Authorizat
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Figure 18-2. Re-prompting for crede
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[HttpPost] public ActionResult Logi
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} } public void OnAuthenticationCha
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using System.Web.Mvc; using System.
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IExceptionFilter { public void OnEx
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Figure 18-3. The default exception
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} } } } filterContext.ExceptionHand
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Figure 18-6. An exception thrown wh
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Table 18-9. HandleErrorInfo Propert
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using System.Web.Mvc; using Filters
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", } } } } string.Format("Action me
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execute the result. You can see how
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Figure 18-10. The effect of adding
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up manually with the Empty template
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I have already explained that filte
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Figure 18-14. Specifying the order
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Figure 18-15. The default filter be
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CHAPTER 19 Controller Extensibility
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} } } public ViewResult List() { re
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} public GetControllerSessionBehavi
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My implementations of the GetContro
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RouteConfig.RegisterRoutes(RouteTab
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} } You can see the effect of the c
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There are no action methods in this
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Figure 19-6. Using the method name
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[ActionName("Enumerate")] public Vi
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} } } }); I have used the ActionNam
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If you start the application and na
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Message: @Session["Message"] ... Th
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Data: @Model When you run the ap
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namespace ControllerExtensibility.C
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string viewName, string masterName,
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ModelState Returns information abou
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view) { } } public void ReleaseView
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Figure 20-2. Requesting an unsuppor
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Listing 20-10. The Contents of the
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Table 20-4. Razor View Engine Searc
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Figure 20-5. The effect of custom l
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Tip My custom view engine locations
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You can check to see if a view has
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I am going to start by creating a p
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@foreach (string str in Model) { @s
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"Pear"}) @Html.Action("Time") You c
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} In the Index action method, I pas
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Here is the message: @Model Inli
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Table 21-3. Useful Properties Defin
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troublesome string to the view as t
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Figure 21-3. Comparing how data val
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Figure 21-5. The effect of selectiv
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@model HelperMethods.Models.Person
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Note Using the helper methods to g
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Layout = "/Views/Shared/_Layout.csh
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} This produces the following form
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... Generating the Input Element fr
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} CreatePerson @using(Html.BeginRou
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CreatePerson label { display: i
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} public class Address { public str
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@{ ViewBag.Title = "CreatePerson";
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Notice that the elements for the Pe
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} return View((object)message); } }
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01/01/0001 00:00:00 Although the
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.editor-field input { height: 20px;
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The value of the property (0 in thi
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[Display(Name = "Birth Date")] publ
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Url Displays the data as a URL (usi
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} public string LastName { get; set
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Figure 22-10. Displaying a complex
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Views/Shared/EditorTemplates folder
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CHAPTER 23 URL and Ajax Helper Meth
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.editor-label { clear: left; } .edi
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action="GetPeople"}) This view co
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Figure 23-2. A simple synchronous f
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I am now ready to start applying un
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as shown in Listing 23-10. Listing
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Setting Ajax Options I can fine-tun
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ViewBag.Title = "GetPeople"; Layout
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Figure 23-6. Prompting the user bef
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I can address this using the AjaxOp
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ole}), } }) Url = Url.Action("Get
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Since I want to present the same da
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Figure 23-9. Working with JSON data
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using System; using System.Collecti
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@foreach (string role in Enum.GetNa
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public class Address { public strin
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Figure 24-1. A simple demonstration
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for the id parameter as follows: 1.
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Figure 24-4. The effect of using a
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This view renders a simple set of l
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Role:@Html.DisplayFor(m => m.Role)
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} Submit You can see the problem if
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using System.Web.Mvc; using MvcMode
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Listing 24-24. Using a Collection A
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... When the form is submitted, th
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Each of the classes listed in Table
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} } } if (ContainsPrefix(key)) { re
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Figure 24-10. The effect of the cus
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using System.Web; using System.Web.
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CHAPTER 25 Model Validation In the
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@ViewBag.Title .field-validati
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Listing 25-7. Explicitly Validating
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Figure 25-2. Errors result in highl
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... Please enter your name Please
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Figure 25-4. Displaying validation
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Figure 25-6. A validation message f
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RegularExpression Required [Require
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Figure 25-8. The error message from
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} } [MustBeTrue(ErrorMessage="You m
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name")); } if (DateTime.Now > Date)
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Both of these settings must be true
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The feedback is also immediate when
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} public JsonResult ValidateDate(st
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has provided is consistent with the
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namespace ClientFeatures.Models { p
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} function processResponse(appt) {
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Figure 26-2. Disabling the browser
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undles.Add(new StyleBundle("∼/Con
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... You won’t need to do this i
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Figure 26-4. Profiling with bundles
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CHAPTER 27 Web API and Single-page
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ReservationRepository.cs to the Mod
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} return RedirectToAction("Index");
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The view model for the partial vie
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elated actions, and makes creating
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This time, the Web API controller h
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using System.Collections.Generic; u
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}; function sendAjaxRequest(httpMet
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Underpinning the Ajax functions is
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Figure 27-3. Monitoring the connect
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... function removeItem(item) { sen
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Client Name Location Save }
Page 728 and 729:
Simplify the Home Controller The Ho
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Remove Create Create Rese
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Index A Account Controller contents
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BeginForm and BeginRoute Form metho
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Custom dependency resolver contents
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table data script button SQL statem
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uilt-In form (see Built-in form hel
Page 742 and 743:
Razor expression shared View Start
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PartyInvites routing system Solutio
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O OnActionExecuted method action fi
Page 748 and 749:
accessing ways context objects acti
Page 750 and 751:
summary, cart definition cart and c
Page 752 and 753:
whole-model templated helpers Test-
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