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POArea of responsibilities between Controller and Repository in ASP.Net MVC2
 

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    <p>I'm trying to get an understanding of how to structure an ASP.Net MVC2 Web App using repositories.</p> <p>A lot of examples, tutorials and books I have read structure the App like so:</p> <pre><code>public interface IProductsRepository { IQueryable&lt;Product&gt; Products { get; } } public class SqlProductsRepository : IProductsRepository { public Table&lt;Product&gt; productsTable; public IQueryable&lt;Product&gt; Products { get { return productsTable } } } public class ProductsController : Controller { IProductsRepository productsRepository; public ProductsController(IProductsRepository productsRepository) { // set the Repository } public ActionResult GetLatestPublishedProducts(int pageSize, int page, ref int totalItemCount) { // Do LINQ query return View(from p in productsRepository where p.PublishedOn != null orderby p.ProductId descending select to(p)) .Skip((page - 1) * pageSize) .Take(pageSize) .ToList()); } } </code></pre> <p>One thing I don't understand is why the Linq query lives in the controller.</p> <p>I'd like to know why doing something like this is not correct:</p> <pre><code>public class SqlProductsRepository : IProductsRepository { // set data model stuff here public List&lt;Product&gt; GetLatestPublishedProducts(int pageSize, int page, ref int totalItemCount) { // DO LINQ Query in here } } public class ProductsController : Controller { // set repository stuff here public ActionResult GetLatestPublishedProducts(int pageSize, int page, ref int totalItemCount) { return View(productsRepository.GetLatestPublishedProducts(pageSize, page, totalItemCount)); } } </code></pre>
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A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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