Using a paged list on model first approach? - visual-studio-2010

Question

I would like to page the data in my view using a paged list , I did this previously using a web grid but am finding it difficult to do this using the model first approach.Any help would be much appreciated.
Thanks

Answer 1

Steve Sanderson describes an example of pagination support in his book Pro ASP.NET MVC 3 which I highly recommend (although it shouldn't be long until the next version is released).
He describes a product controller (listing pages of products) as:
public class ProductController : Controller {
public int PageSize = 4; //This could be retrieved from the database
private IProductRepository repository;
public ProductController(IProductRepository repoParam) {
repository = repoParam;
}
public ViewResult List(int page = 1) {
ProductsListViewModel viewModel = new ProductsListViewModel {
Products = repository.Products
.OrderBy(p => p.ProductID)
.Skip((page - 1) * PageSize)
.Take(PageSize),
PagingInfo = new PagingInfo {
CurrentPage = page,
ItemsPerPage = PageSize,
TotalItems = repository.Products.Count()
}
};
return View(viewModel);
}
A query to the action may then be in the form:
http://localhost:23081/Product/List?page=2
(or whatever routing you require).
This view model would then be:
public class ProductsListViewModel {
public IEnumerable<Product> Products { get; set; }
public PagingInfo PagingInfo { get; set; }
}
And the PagingInfo model would be:
public class PagingInfo {
public int TotalItems { get; set; }
public int ItemsPerPage { get; set; }
public int CurrentPage { get; set; }
public int TotalPages {
get { return (int)Math.Ceiling((decimal)TotalItems / ItemsPerPage); }
}
}
You can then use this paging information to display the information in your view as required.

Answer 2

Check out my PagedList nuget package on github:
https://github.com/troygoode/pagedlist
This will allow you to write code like so:
MyController.cs
public class MyController : Controller{
public object MyRoute(){
var pagedProducts = ProductsRepo.All().ToPagedList();
return View(pagedProducts);
}
}
MyRoute.cshtml
<ul>
#foreach(var product in ViewModel){
<li>#product.Name</li>
}
</ul>
#Html.PagedListPager(ViewModel, page=> Url.Action("MyRoute", {page = page}))