我有以下视图和控制器。问题是，当启用分页时，我点击下一页，之前的视图就不见了
@using System
@using System.Web.Helpers
@*@model List<DataTransferObjects.UserClaimHistory>*@
<!DOCTYPE html>
<html lang="en">
<head runat="server">
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link href="~/Content/style.css" rel="stylesheet" type="text/css" />
@*<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>*@
<script src="~/Scripts/jquery-1.7.1.js"></script>
<style>
/*Here I will write some css for looks good*/
th, td {
padding: 5px;
}
th {
background-color: gray;
}
</style>
</head>
@{
ViewBag.Title = "ViewReports";
var grid = new WebGrid(Model, canPage: false, rowsPerPage: 2, selectionFieldName: "selectedRow", ajaxUpdateContainerId: "gridContent", canSort: false);
}
@{
var fromDateVal = (DateTime)ViewBag.fromDate;
var toDateVal = (DateTime)ViewBag.toDate;
}
@using (Html.BeginForm("Index", "ViewReport", FormMethod.Post))
{
<div class="container">
@{
var homeHeader = Html.Partial("_HomeHeader");
}
@homeHeader
<div id="logout-div">
@Html.ActionLink("Log Out", "Logout", "Home", null, null )
</div>
@{
var homeLeftPanel = Html.Partial("_HomeLeftPanel");
}
@homeLeftPanel
<div>
From Date: @Html.TextBox("fromDate", string.Format("{0:yyyy-MM-dd}", fromDateVal), new { @id = "fromDate", @class = "datefield", type = "date" })
To Date: @Html.TextBox("toDate", string.Format("{0:yyyy-MM-dd}", toDateVal), new { @id = "toDate", @class = "datefield", type = "date" })
<input type="submit" value="Search" />
</div>
<div id="main" style="padding: 25px;">
@grid.GetHtml(
htmlAttributes: new { id = "MainGrid", width = "60%" },
tableStyle: "table table-bordered table-responsive",
headerStyle: "header",
alternatingRowStyle: "alt",
selectedRowStyle: "select",
columns: grid.Columns(
grid.Column("UserName", "User Name"),
grid.Column("Email", "Email"),
grid.Column("Claim", "Accessed"),
grid.Column(header: "AccessedOn", format: (item) => string.Format("{0:dd-MM-yyyy}", item.AccessedOn)),
grid.Column(format: (item) =>
{
if (item.Count > 1)
{
var subGrid = new WebGrid(source: item.List, canSort: false);
return subGrid.GetHtml(displayHeader: true,
htmlAttributes: new { id = "SubGrid", width = "100%" },
columns: subGrid.Columns(
subGrid.Column("UserName", "User Name"),
subGrid.Column("Email", "Email"),
subGrid.Column("Claim", "Accessed"),
subGrid.Column("AccessedOn", "AccessedOn")
)
);
}
else
{
return null;
}
})
)
)
<script>
$(document).ready(function () {
var size = $("#main #MainGrid > thead > tr > th").size(); // get total column
$("#main #MainGrid > thead > tr > th").last().remove(); // remove last column
$("#main #MainGrid > thead > tr").prepend("<th></th>"); // add one column at first for collapsible column
$("#main #MainGrid > tbody > tr").each(function (i, el) {
$(this).prepend(
$("<td></td>")
.addClass("expand")
.addClass("hoverEff")
.attr('title', "click for show/hide")
);
//Now get sub table from last column and add this to the next new added row
var table = $("table", this).parent().html();
//
// alert(table);
//add new row with this subtable
// ADD CLICK EVENT FOR MAKE COLLAPSIBLE
if (table !== null) {
$(this).after("<tr><td></td><td style='padding:5px; margin:0px;' colspan='" + (size - 1) + "'>" + table + "</td></tr>");
$("table", this).parent().remove();
$(".hoverEff", this).live("click", function () {
$(this).parent().closest("tr").next().slideToggle(100);
$(this).toggleClass("expand collapse");
});
} else {
$(this).find('td:eq(0)').removeClass();
}
});
//by default make all subgrid in collapse mode
$("#main #MainGrid > tbody > tr td.expand").each(function (i, el) {
$(this).toggleClass("expand collapse");
$(this).parent().closest("tr").next().slideToggle(100);
});
});
</script>
</div>
@if (ViewBag.Count > 0)
{
<div>
@Html.ActionLink("Export", "ExportToExcel", "ViewReport", new { fromDate = fromDateVal, toDate = toDateVal}, null)
</div>
}
@{
var homeFooter = Html.Partial("_HomeFooter");
}
@homeFooter
</div>
}
</html>
这是控制器：
public ActionResult Index(DateTime? fromDate, DateTime? toDate)
{
if (!fromDate.HasValue)
fromDate = DateTime.Now.Date;
if (!toDate.HasValue)
toDate = fromDate.GetValueOrDefault(DateTime.Now.Date).Date.AddDays(1);
if (toDate < fromDate)
toDate = fromDate.GetValueOrDefault(DateTime.Now.Date).Date.AddDays(1);
ViewBag.fromDate = fromDate;
ViewBag.toDate = toDate;
var userClaims = DbAccessWebApiHandler.GetUserClaimAccesshistory(new DateSelection
{
StartDate = fromDate.Value,
EndDate = toDate.Value
});
if (userClaims != null)
{
ViewBag.Count = userClaims.Count;
var newList = userClaims.GroupBy(x => new { x.UserName, x.Email, x.Claim, x.AccessedOn.Date })
.Select(y => new UserClaimHistoryGroup
{
UserName = y.Key.UserName,
Email = y.Key.Email,
Claim = y.Key.Claim,
AccessedOn = y.Key.Date,
List = y.ToList(),
Count = y.ToList().Count
});
return View(newList);
}
userClaims = new List<UserClaimHistory>();
return View(userClaims);
}
[System.Web.Mvc.HttpGet]
public ActionResult ExportToExcel(DateTime? fromDate, DateTime? toDate)
{
if (!fromDate.HasValue)
fromDate = DateTime.Now.Date;
if (!toDate.HasValue)
toDate = fromDate.GetValueOrDefault(DateTime.Now.Date).Date.AddDays(1);
if (toDate < fromDate)
toDate = fromDate.GetValueOrDefault(DateTime.Now.Date).Date.AddDays(1);
ViewBag.fromDate = fromDate;
ViewBag.toDate = toDate;
var userClaims = DbAccessWebApiHandler.GetUserClaimAccesshistory(new DateSelection
{
StartDate = fromDate.Value,
EndDate = toDate.Value
});
if (userClaims != null)
{
var gv = new GridView();
gv.AutoGenerateColumns = false;
gv.Columns.Add(new BoundField { HeaderText = "UserName", DataField = "UserName" });
gv.Columns.Add(new BoundField { HeaderText = "Email", DataField = "Email" });
gv.Columns.Add(new BoundField { HeaderText = "Accessed", DataField = "Claim" });
gv.Columns.Add(new BoundField { HeaderText = "Date", DataField = "AccessedOn" });
var dt = new DataTable();
dt.Columns.Add("UserName");
dt.Columns.Add("Email");
dt.Columns.Add("Claim");
dt.Columns.Add("AccessedOn");
foreach (var item in userClaims)
{
dt.Rows.Add(item.UserName, item.Email, item.Claim, item.AccessedOn);
}
gv.DataSource = dt;
gv.DataBind();
for (var i = 0; i < userClaims.Count; i++)
{
gv.Rows[i].Height = 40;
}
Response.ClearContent();
Response.Buffer = true;
Response.AddHeader("content-disposition", "attachment; filename=Reports.xls");
Response.ContentType = "application/ms-excel";
Response.Charset = "";
var sw = new StringWriter();
var htw = new HtmlTextWriter(sw);
gv.RenderControl(htw);
Response.Output.Write(sw.ToString());
Response.Flush();
Response.End();
}
return View("Index");
}
答案 0 :(得分：0)
能够通过以下脚本工作
var links = $('a[href*=page], a[href*=sort]'), form = $('form');
links.click(function () {
form.attr("action", this.href);
$(this).attr("href","javascript:");
form.submit();
});
如How do I get my WebGrid to POST instead of GET during a sort or paging operation in my MVC4 site?
中所述