generate code 39 barcode using c# Creating the Product Catalog: Part I in C#

Generation USS Code 39 in C# Creating the Product Catalog: Part I

CHAPTER
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Creating the Product Catalog: Part I
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fter learning about the three-tier architecture and implementing a bit of your web site s main page, it s time to continue your work by starting to create the HatShop product catalog. Because the product catalog is composed of many components, you ll create it over two chapters. In this chapter, you ll create the first data table, implement access methods in the middle tier, and learn how to deal with the data tier. By the end of this chapter, you ll finally have something dynamically generated on your web page. In 4, you ll finish building the product catalog by adding support for categories, product lists, a product details page, and more! The main topics we ll touch on in this chapter are Analyzing the structure of the product catalog and the functionality it should support Creating the database structures for the catalog and the data tier of the catalog Implementing the business tier objects required to make the catalog run Implementing a functional user interface for the product catalog
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Showing Your Visitors What You ve Got
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One of the essential features required in any e-store is to allow the visitor to easily browse through the products. Just imagine what Amazon.com would be like without its excellent product catalog! Whether your visitors are looking for something specific or just browsing, it s important to make sure their experience with your site is a pleasant one. After all, you want your visitors to find what they are looking for as easily and painlessly as possible. This is why you ll want to add search functionality to the site and also find a clever way of structuring products into categories so they can be quickly and intuitively accessed. Depending on the size of the store, it might be enough to group products under a number of categories, but if there are a lot of products, you ll need to find even more ways to categorize and structure the product catalog. Determining the structure of the catalog is one of the first tasks to accomplish in this chapter. Keep in mind that in a professional approach, these details would have been
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CHAPTER 3 CREATING THE PRODUCT CATALOG: PART I
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established before starting to code when building the requirements document for the project, as explained in Appendix B. However, for the purposes of this book, we prefer to deal with things one at a time. After the structure of the catalog is established, you ll start writing the code that makes the catalog work as planned.
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What Does a Product Catalog Look Like
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Today s web surfers are more demanding than they used to be. They expect to find information quickly on whatever product or service they have in mind, and if they don t find it, they are likely to go to the competition before giving the site a second chance. Of course, you don t want this to happen to your visitors, so you need to structure the catalog to make it as intuitive and helpful as possible. Because the e-store will start with around 100 products and will probably have many more in the future, it s not enough to just group them in categories. The store also has a number of departments and each department will contain a number of categories. Each category can then have any number of products attached to it.
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Note Later in the book, you ll also create the administrative part of the web site, often referred to as the
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Control Panel, which allows the client to update department, category, and product data. Until then, you ll manually fill in the database with data (or you can cheat by using the SQL scripts provided as part of the Source Code/Download section of the Apress web site at http://www.apress.com, as you ll see).
Another particularly important detail that you need to think about is whether a category can exist in more than one department and whether a product can exist in more than one category. As you might suspect, this is the kind of decision that has implications on the way you code the product catalog, so you need to consult your client on this matter. For the HatShop product catalog, each category can exist in only one department, but a product can exist in more than one category. For example, the product Military Beret will appear in both Berets and Military Hats categories. This decision will have implications in the way you ll design the database, and we ll highlight those implications when we get there. Finally, apart from having the products grouped in categories, you also want to have featured products. For this web site, a product can be featured either on the front page or in the department pages. The next section shows a few screenshots that explain this.
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