PagedList about cloudscribe.web.pagination HOT 8 CLOSED

@miroslavsiska said:

If you click on Page one, Pager show items from page 2.

I'm not seeing any problem like this in the demo web for this project. Please provide detailed steps to produce the problem. I cannot test this fix until I can first reproduce the problem.

from cloudscribe.web.pagination.

Hi.
page=1;
return View(_context.Contacts.ToPagedList(page-1,1));
Showing page 1
return View(_context.Contacts.ToPagedList(page,1));
Showing page 2

from cloudscribe.web.pagination.

Steps:
1.
project.json file
"Dependencies": added "cloudscribe.Web.Pagination": "1.0.0-beta6"
2.
Startup.cs file
Join using cloudscribe.Web.Pagination;
public void ConfigureServices (IServiceCollection services) in
Join services.AddTransient <IBuildPaginationLinks, PaginationLinkBuilder> ();
3.
_ViewImports.cshtml File
join @addTagHelper "*, cloudscribe.Web.Pagination"
4.
Contraller file
Join using cloudscribe.Web.Pagination;
public IActionResult Index (int page = 1)
{
return View (_context.Contacts.ToPagedList (page-1,1));
}
5.
View file
@model cloudscribe.Web.Pagination.IPagedList<CompanyManagementSystems.Models.Contacts>
.....
navigation:
</ cs-pager>

from cloudscribe.web.pagination.

this problem does not happen in the demo web app.

I believe it is a bug in your own code.

Specifically, it looks like you are passing pagesize = 1 to pagedlist but you are not setting the page size on the pagertaghelper so it defaults to 10

from cloudscribe.web.pagination.

if you use pagedlist together with pagertaghelper you must set them both to the same pagesize

from cloudscribe.web.pagination.

I changed the code，Debugging。
page=1;
var s = _context.Contacts.ToPagedList(page - 1, 5);
return View(s);
Capacity 8 int
Count 5 int
HasNextPage true bool
HasPreviousPage false bool
IsFirstPage true bool
IsLastPage false bool
ItemEnd 5 int
ItemStart 1 int
PageCount 3 int
PageIndex 0 int
PageNumber 1 int
PageSize 5 int
TotalItemCount 12 int

page=1;
var s = _context.Contacts.ToPagedList(page, 5);
Capacity 8 int
Count 5 int
HasNextPage true bool
HasPreviousPage true bool
IsFirstPage false bool
IsLastPage false bool
ItemEnd 10 int
ItemStart 6 int
PageCount 3 int
PageIndex 1 int
PageNumber 2 int
PageSize 5 int
TotalItemCount 12 int

By contrast, I believe that the issue on PageIndex. PageIndex start counting from 0. Maybe I am wrong, I do not know how to set pagertaghelper. sorry, my English is not very good.

from cloudscribe.web.pagination.

yes pagedlist takes an index parameter and the index is zero based so it is not the same thing as pagenumber

so you need to make a variable
var pageindex = pagenumber -1;
and pass that to pagedlist

pagertaghelper just uses pagenumber, it is not zero based, first page is 1 not 0

you can see this in the demo code
https://github.com/joeaudette/cloudscribe.Web.Pagination/blob/master/src/PagingDemo.Web/Controllers/PagingController.cs

    public IActionResult ProductList(
            int? pageNumber, 
            int? pageSize,
            string query = "")
        {
            int currentPageIndex = pageNumber.HasValue ? pageNumber.Value - 1 : 0;
            int itemsPerPage = pageSize.HasValue ? pageSize.Value : DefaultPageSize;

            var model = new ProductListViewModel();

            model.Products = this.allProducts.Where(p => 
            p.Category.StartsWith(query)
            ).ToPagedList(currentPageIndex, itemsPerPage);

            model.Paging.CurrentPage = pageNumber.HasValue ? pageNumber.Value : 1;
            model.Paging.ItemsPerPage = itemsPerPage;
            model.Paging.TotalItems = model.Products.TotalItemCount;
            model.Query = query; //TODO: sanitize

            return View(model);


        }

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Thank you, I understand.

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