Question

我目前有一个表格，显示所有问题的列表。我将PagedList.MVC添加到应用程序以及jquery filterTable问题是，当我使用PagedListPager单击其他页面时，它会丢失页面顶部的所有排序选项。我相信我只需要将参数添加到pagedlistpager但我不确定如何获取文本框的值。我正在考虑尝试使用jquery并使用元素的val（），但不确定这是否是最好/最简单的方法。

这是我的观点：

@model  PagedList.IPagedList<ApIssues.Models.AP_Tasks>
@using System.Data.SqlClient
@using PagedList.Mvc;


@{
    ViewBag.Title = "Index";
}



<div class="search-sort-section">
    <h2>Search and Sort</h2>

    @using (Html.BeginForm("Index","ApIssues"))
    {
        <p>
            @Html.Label("Company: ")
            @Html.DropDownList("company", (SelectList)ViewBag.CompanyList, " ")

            @Html.Label("Warehouse: ")
            @Html.DropDownList("warehouse", (SelectList)ViewBag.WarehouseList, " ")

            @Html.Label("Past Due Only: ")
            @Html.DropDownList("pastDue", (SelectList)ViewBag.PastDueList, " ")

            @Html.Label("Assigned To/By: ")
            @Html.DropDownList("assignedToBy", (SelectList)ViewBag.UsersList, " ")

        </p>

        <p>
            @Html.Label("Open / Completed: ")
            @Html.DropDownList("openco", (SelectList)ViewBag.OpenCompList, " ")

            @Html.Label("Sort By: ")
            @Html.DropDownList("sortBy", (SelectList)ViewBag.SortByList, " ")

            @Html.Label("PO #: ")
            @Html.TextBox("poNumber")
            @Html.Label("Freight #: ")
            @Html.TextBox("freightNumber")
            @Html.Label("Vendor Name: ")
            @Html.TextBox("vendorName")
        </p>
        <p>
            @Html.Label("Issue Date")
            @Html.TextBox("beginIssueDate") - @Html.TextBox("endIssueDate")

            @Html.Label("Invoice Date")
            @Html.TextBox("beginInvoiceDate") - @Html.TextBox("endInvoiceDate")

            @Html.Label("Completed Date")
            @Html.TextBox("beginCompletedDate") - @Html.TextBox("endCompletedDate")
            @Html.Label("Quick Filter: ")
            @Html.TextBox("quickFilter")
        </p>
        <p>
            <input type="submit" value="Go" />
            <input type="button" value="Printable View" onclick=" location.href = '@Url.Action("PrintablePdf", "ApIssues")' " />
            <input type="button" value="Add New Task" onclick=" location.href = '@Url.Action("Create", "ApIssues")' " />
            <input type="button" value="Reporting" />
        </p>
    }


</div>



<div class="issue-table">
    <h2>A/P Issues</h2>
    <table id="data-table">
        <tr>
            <th style="border: 2px solid black; text-align: center; width: 12%">
                @Html.ActionLink("Task ID", "Index",
                    new { sortOrder = "TaskID", CurrentSort = ViewBag.CurrentSort })
            </th>
            <th style="border: 2px solid black; text-align: center; width: 12%">
                @Html.ActionLink("Task Date", "Index",
                    new { sortOrder = "TaskDate", CurrentSort = ViewBag.CurrentSort })
            </th>
            <th style="border: 2px solid black; text-align: center; width: 12%">
                @Html.ActionLink("Invoice Date", "Index",
                    new { sortOrder = "InvDate", CurrentSort = ViewBag.CurrentSort })
            </th>
            <th style="border: 2px solid black; text-align: center; width: 12%">
                @Html.ActionLink("Assigned To", "Index",
                    new { sortOrder = "AssignedTo", CurrentSort = ViewBag.CurrentSort })
            </th>

            <th style="border: 2px solid black; text-align: center; width: 12%">
                @Html.ActionLink("CC", "Index",
                    new { sortOrder = "CC", CurrentSort = ViewBag.CurrentSort })
            </th>

            <th style="border: 2px solid black; text-align: center; width: 12%">
                @Html.ActionLink("WHSE", "Index",
                    new { sortOrder = "Whse", CurrentSort = ViewBag.CurrentSort })
            </th>

            <th style="border: 2px solid black; text-align: center; width: 12%">
                @Html.ActionLink("PO #", "Index",
                    new { sortOrder = "PO", CurrentSort = ViewBag.CurrentSort })
            </th>

            <th style="border: 2px solid black; text-align: center; width: 12%">
                @Html.ActionLink("Freight #", "Index",
                    new { sortOrder = "FreightNo", CurrentSort = ViewBag.CurrentSort })
            </th>

            <th style="border: 2px solid black; text-align: center; width: 12%">
                @Html.ActionLink("Vendor Name", "Index",
                    new { sortOrder = "VendName", CurrentSort = ViewBag.CurrentSort })
            </th>

            <th style="border: 2px solid black; text-align: center; width: 12%">
                @Html.ActionLink("Req. Completion Date", "Index",
                    new { sortOrder = "ReqCompDate", CurrentSort = ViewBag.CurrentSort })
            </th>

            <th style="border: 2px solid black; text-align: center; width: 12%">
                @Html.ActionLink("Task Type", "Index",
                    new { sortOrder = "TaskType", CurrentSort = ViewBag.CurrentSort })
            </th>

            <th></th>
        </tr>

        @foreach (var item in Model)
        {
            <tr>
                <td>
                    @Html.ActionLink(item.TaskID.ToString(), "Task", new { id = item.TaskID })
                </td>
                <td>
                    @Html.DisplayFor(modelItem => item.TaskDate)
                </td>
                <td>
                    @Html.DisplayFor(modelItem => item.InvDate)
                </td>
                <td>
                    @Html.DisplayFor(modelItem => item.AssignedTo)
                </td>
                <td>
                    @Html.DisplayFor(modelItem => item.CC)
                </td>
                <td>
                    @Html.DisplayFor(modelItem => item.Whse)
                </td>
                <td>
                    @Html.DisplayFor(modelItem => item.PO)
                </td>
                <td>
                    @Html.DisplayFor(modelItem => item.FreightNo)
                </td>
                <td>
                    @Html.DisplayFor(modelItem => item.VendName)
                </td>
                <td>
                    @Html.DisplayFor(modelItem => item.ReqCompDate)
                </td>
                <td>
                    @Html.DisplayFor(modelItem => item.TaskType)
                </td>
                <td>
                    @Html.ActionLink("Edit", "Edit", new { id = item.TaskID })
                </td>
            </tr>
        }

    </table>

    <br />
    <div id='Paging' style="text-align:center">
        Page @(Model.PageCount < Model.PageNumber ? 0 : Model.PageNumber)
        of @Model.PageCount

        @Html.PagedListPager(Model, page => Url.Action("Index", new {page}))
    </div>
</div>
<head>
    <title></title>

    <script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.0/jquery.min.js"></script>
    <script src="http://sunnywalker.github.io/jQuery.FilterTable/jquery.filtertable.min.js"></script>
    <script src="~/Scripts/Additional JS/jquery.tablesorter.js"></script>
    <script type="text/javascript">
        $(document).ready(function () {
            $('table').filterTable(
            {
                minRows: 1,
                label: "Search :",
                inputSelector: "#quickFilter" ,
                placeholder: "Keyword"
            });
        });
    </script>
</head>

这是我的行动：

public ActionResult Index(string sortOrder,string currentSort, int? page, string company, string warehouse,
            string pastDue, string assignedToBy, string openco, string sortBy, string poNumber, string freightNumber,
            string vendorName, string beginIssueDate, string endIssueDate, string beginInvoiceDate, string endInvoiceDate,
            string beginCompletedDate, string endCompletedDate)
        {
            //Variable Definitions
            const int pageSize = 20;
            var pageIndex = 1;
            pageIndex = page.HasValue ? Convert.ToInt32(page) : 1;
            IPagedList<AP_Tasks> tasks = null;

            // Instantiate the Entities
            var nxtDb = new nxtSQLEntities();
            var db = new Accounting_AaronTestEntities();
            var usersDb = new PDDAEntities1();

            //Query that gets the warehouses, companys, and users from the nxtDB and the PPP DB
            var whses = from w in nxtDb.icsds select w.whse;
            var coNames = from c in nxtDb.icsds select c.name;
            var userDb = new PDDAEntities1();
            var query1 = from u in userDb.Users where u.Cono == 1 select new { u.UserName, u.FirstName, u.LastName };
            var query2 = from gm in userDb.GroupMembers
                         join ug in userDb.UserGroups on gm.GroupID equals ug.GroupID
                         join u in userDb.Users on gm.UserName equals u.UserName
                         where ug.GroupName == "AP Department" || ug.GroupName == "MIS"
                         orderby new { u.LastName, u.FirstName }
                         select new { UserName = u.UserName, FirstName = u.FirstName, LastName = u.LastName };
            var query3 = query1.Concat(query2);

            var users = new List<string> { };
            users.AddRange(query3.Select(entry => entry.UserName));

            //Dropdown lists being created and using a viewbag to setup and communication line between the the conroller and view
            var warehouseList = new SelectList(whses);
            ViewBag.WarehouseList = warehouseList;
            var companyList = new SelectList(coNames);
            ViewBag.CompanyList = companyList;
            var pastDueList = new SelectList(new[]{"Yes", "No"});
            ViewBag.PastDueList = pastDueList;
            var usersList = new SelectList(users);
            ViewBag.UsersList = usersList;
            var openCompList = new SelectList(new[] { "Open", "Completed" });
            ViewBag.OpenCompList = openCompList;
            var sortByList = new SelectList(new[] { "Task ID", "Warehouse", "Assigned To", "PO Number", "Task Date" });
            ViewBag.SortByList = sortByList;



            tasks = GetFilteredSortedTasks(db,company, warehouse, pastDue, assignedToBy, openco, sortBy, poNumber,
                        freightNumber, vendorName, beginIssueDate, endIssueDate, beginInvoiceDate, endInvoiceDate,
                        beginCompletedDate, endCompletedDate).ToPagedList(pageIndex, pageSize);

            return View(tasks);

        }

Answer 1

Html.PagedListPager可以使用一个附加参数，该表达式告诉它如何为下一页生成URL：

@Html.PagedListPager((IPagedList)ViewBag.OnePageOfItems, page => SomeMethodToGetUrlFor(page))

您需要做的基本上是保留页面的当前URL（具有筛选器等所有适当的查询字符串参数）并添加或更新page参数。＆＃34;添加或更新＆＃34;但是，部分使得这一点变得棘手：例如，您不能只在&page=N上粘贴到URL的末尾，因为page可能已经存在于查询字符串中。我为此目的创建了UrlHelper扩展程序：

public static string ModifyQueryString(this UrlHelper helper, string url, NameValueCollection updates, IEnumerable<string> removes)
{
    NameValueCollection query;
    var request = helper.RequestContext.HttpContext.Request;

    if (string.IsNullOrWhiteSpace(url))
    {
        url = request.Url.AbsolutePath;
        query = HttpUtility.ParseQueryString(request.QueryString.ToString());
    }
    else
    {
        var urlParts = url.Split('?');
        url = urlParts[0];
        if (urlParts.Length > 1)
        {
            query = HttpUtility.ParseQueryString(urlParts[1]);
        }
        else
        {
            query = new NameValueCollection();
        }
    }

    updates = updates ?? new NameValueCollection();
    foreach (string key in updates.Keys)
    {
        query.Set(key, updates[key]);
    }

    removes = removes ?? new List<string>();
    foreach (string param in removes)
    {
        query.Remove(param);
    }

    if (query.HasKeys())
    {
        return string.Format("{0}?{1}", url, query.ToString());
    }
    else
    {
        return url;
    }
}

这样做基本上允许您传递要添加或更新的NameValueCollection个参数和/或要从查询字符串中删除的参数列表。默认情况下，它使用当前请求URL，但如果您传入URL，则会对其进行转换。最后，它将修改后的URL返回给视图。

我还添加了一些其他方法，以便更轻松地使用它，例如：

public static string UpdateQueryParam(this UrlHelper helper, string param, object value)
{
    return ModifyQueryString(helper, new NameValueCollection { { param, value.ToString() } }, null);
}

public static string UpdateQueryParam(this UrlHelper helper, string url, string param, object value)
{
    return ModifyQueryString(helper, url, new NameValueCollection { { param, value.ToString() } }, null);
}

因此，如果我只需要添加/更新一个参数，我就不需要在视图中实际实例化新的NameValueCollection。

然后，您可以使用这些扩展名适当地修改URL：

Url.UpdateQueryParam("page", page)

这使您的寻呼机行：

@Html.PagedListPager((IPagedList)ViewBag.OnePageOfItems, page => Url.UpdateQueryParam("page", page))

使用Razor - MVC获取HTML Textbox值

1 个答案: