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MvcPager demo - Retain url parameters

This sample demonstrates how MvcPager can retain url parameters after paging.

MvcPager can retain url parameters after paging, please pay attention to url before and after paging in this demo.

Note: Url parameter(s) with empty value will be ignored and discarded after paging!

Current url parameters: Year=2013, Author=Webdiyer, City=Yanan
Order ID Customer ID Company Name Employee Name
10760 MAISD Maison Dewey Margaret Peacock
10761 RATTC Rattlesnake Canyon Grocery Steven Buchanan
10762 FOLKO Folk och fä HB Janet Leverling
10763 FOLIG Folies gourmandes Janet Leverling
10764 ERNSH Ernst Handel Michael Suyama
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View:

        
@model PagedList<Order>
<div class="well well-sm">Current url parameters: Year=@Request.QueryString["year"], Author=@Request.QueryString["author"], City=@Request.QueryString["city"]</div>
@Html.Partial("_DataTable", Model)
@Html.Pager(Model,new PagerOptions{PageIndexParameterName = "id", PagerItemTemplate = "{0}&nbsp;" })

_DataTable.cshtml:

@model PagedList<order>
<table class="table table-striped table-bordered">
    <tr>
    <th class="nowrap">
            @Html.DisplayNameFor(model => model.OrderId)
        </th>
    <th class="nowrap">
            @Html.DisplayNameFor(model => model.CustomerId)
        </th>
    <th class="nowrap">
            @Html.DisplayNameFor(model => model.CompanyName)
        </th>
    <th class="nowrap">
            @Html.DisplayNameFor(model => model.EmployeeName)
        </th>
    </tr>
    @foreach (var item in Model)
    {
    <tr>
    <td>
                @Html.DisplayFor(modelItem => item.OrderId)
            </td>
    <td>
                @Html.DisplayFor(modelItem => item.CustomerId)
            </td>
    <td>
                @Html.DisplayFor(modelItem => item.CompanyName)
            </td>
    <td>
                @Html.DisplayFor(modelItem => item.EmployeeName)
            </td>
        </tr>
    }
</table>

Model:

    public class Order
    {
        [Display(Name = "Order ID")]
        public int OrderId { get; set; }
        [Display(Name = "Customer ID"),StringLength(20)]
        public string CustomerId { get; set; }
        [Display(Name = "Order Date")]
        public DateTime OrderDate { get; set; }
        [Display(Name = "Company Name"), StringLength(20)]
        public string CompanyName { get; set; }
        [Display(Name = "Employee Name"), StringLength(20)]
        public string EmployeeName { get; set; }
    }

Controller:

        
        public ActionResult UrlParams(int id = 1)
        {
            using (var db = new DataContext())
            {
                return View(db.Orders.OrderBy(o=>o.OrderId).ToPagedList(id, 5));
            }
        }