zxing.net code 128 Installing and configuring Spark in VS .NET

Maker Code 128 Code Set A in VS .NET Installing and configuring Spark

10.3.1 Installing and configuring Spark
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The latest Spark release can be found at Spark s CodePlex site (http://sparkviewengine. codeplex.com/). The release includes the following:
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The Spark assemblies we need in our MVC project Documentation Samples Installer for Visual Studio IntelliSense
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To get Spark running in your MVC project, you need only the binaries, but the IntelliSense is quite helpful, so it s good to run the installer before launching Visual Studio.
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Advanced view techniques
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Next, you need to add references to both the Spark and Spark.Web.Mvc assemblies to your project, as shown in figure 10.2. With the Spark assembly references added to your project, you can configure ASP.NET MVC to use Spark as its view engine. Spark has additional configuration, which you can either place in your Web.config file or in code. For this example, we ll configure Spark in code, but the Spark documentation has full examples of both options. Our Spark configuration is shown in listing 10.11.
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Listing 10.11 Spark configuration code
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Figure 10.2 Adding the Spark assembly references to our project
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var settings = new SparkSettings() .SetDebug(true) .AddAssembly("SparkViewExample") .AddNamespace("System") .AddNamespace("System.Collections.Generic") .AddNamespace("System.Linq") .AddNamespace("System.Web.Mvc") .AddNamespace("System.Web.Mvc.Html"); ViewEngines.Engines.Add(new SparkViewFactory(settings));
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We place the configuration code into the Application_Start method in our Global.asax.cs file, because the Spark configuration and MVC view engine configuration only need to happen once per application domain. In the first section, we create a SparkSettings object, configuring the compilation mode, and adding our project assembly and various assemblies for compilation. This section is similar to configuring the WebFormViewEngine in the Web.config file. Next, we add a new SparkViewFactory instance to the System.Web.Mvc.ViewEngines.Engines collection; the ViewEngines class allows additional view engines to be configured for our application. Then we pass our SparkSettings object to the SparkViewFactory instance. That s all it takes to configure Spark! Now that Spark is configured, we can move on to creating views for our example.
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10.3.2 Simple Spark view example On the controller and model pieces of our MVC application, we won t see any changes as a result of our new view engine. In our example, we want to display a list of Product model objects, as shown in listing 10.12.
Listing 10.12 A simple Product model
public class Product { public string Name { get; set; }
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public string Description { get; set; } public decimal Price { get; set; } }
Again, the Spark view engine places no specific constraints on our model or our controller action, as shown in listing 10.13.
Listing 10.13 A ProductController for displaying Product objects
public class ProductController : Controller { public ViewResult Index() Creates dummy { products var products = new[] { new Product { Name = "Toothbrush", Description = "Cleans your teeth", Price = 2.49m }, new Product { Name = "Hairbrush", Description = "Styles your hair", Price = 10.29m }, new Product { Name = "Shoes", Description = "Protects your feet", Price = 55.99m }, Sends products }; to the view return View(products); } }
We provide only a dummy list of products for our Spark views to display. To create our Spark views, we use a folder structure similar to our structure for other view engines. In the root Views folder, we create a Product folder to correspond to our ProductController. Additionally, we create Layouts and Shared folders, as shown in figure 10.3. In Spark, view files use the .spark file extension. This is mainly so that the file extension doesn t conflict with other view engines in the IDE or at runtime. Spark supports the concept of layouts, which is equivalent to master pages. By convention, the default layout name is Application.spark, found in either the Layouts or Shared folder. To start on our layout, we ll create a text file in Visual Studio named Application.spark (instead of a Web Form or other template). This is shown in figure 10.4.
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