JQuery Datatable 日期列未正确排序
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【中文标题】JQuery Datatable 日期列未正确排序【英文标题】:JQuery Datatable Date Column Not Sorting Correctly 【发布时间】:2014-08-30 09:11:08 【问题描述】:我正在开发一个 Asp.Net MVC 5 站点,它使用 JQuery Datatables http://www.datatables.net/ 向用户显示表格数据。我的代码运行良好,即显示、过滤、分页等。除了我的两个日期列(RegisteredDate 和 LastLoginDate)之外,我还对大多数列进行了排序。
剃刀视图
<script>
$(document).ready(function ()
$('#dataTables-example').dataTable(
"bServerSide": true,
"sAjaxSource": "/Doctor/GetAjaxData",
"bProcessing": true,
"bJQueryUI": true,
"aoColumns": [
"sName": "DoctorID", "visible": false ,
"mData": null,
"mRender": function (data, type, full)
return "<a href='/Admin/Doctor/DoctorDetails/" + full[0] + "'>" + full[1] + "</a>";
,
null, //Email
"sName": "Doctor_GMC", "bSortable": false , //GMC
null, //RegisteredDate
null, //LastLoginDate
"mData": null,
"mRender": function (data, type, full)
return "<button class='btn btn-danger btn-xs' id='btnDelete' data-toggle='modal' data-target='#myModal' data-id='"+ full[0] +"'>Delete</button>";
]
);
);
</script>
MVC 控制器
public JsonResult GetAjaxData(JQueryDataTableParamModel param)
IEnumerable<doctor> allDoctors;
allDoctors = _doctorService.GetAllDoctors();
var sortColumnIndex = Convert.ToInt32(Request["iSortCol_0"]);
Func<doctor, string> orderingFunction = (c => sortColumnIndex == 1 ? c.Doctor_FName :
sortColumnIndex == 2 ? c.Doctor_Email :
sortColumnIndex == 4 ? c.RegisteredDate.Value.ToString("dd/MM/yyyy") :
c.LastLoginDate.Value.ToString("dd/MM/yyyy"));
IEnumerable<doctor> filteredDoctors;
if (!string.IsNullOrEmpty(param.sSearch))
filteredDoctors = _doctorService.GetAllDoctors()
.Where(d => d.Doctor_FName.ToUpper().Contains(param.sSearch.ToUpper())
||
d.Doctor_LName.ToUpper().Contains(param.sSearch.ToUpper())
||
d.Doctor_Email.ToUpper().Contains(param.sSearch.ToUpper()));
else
filteredDoctors = allDoctors;
var displayedDoctors = filteredDoctors;
var sortDirection = Request["sSortDir_0"]; // asc or desc
if (sortDirection == "asc")
displayedDoctors = displayedDoctors.OrderBy(orderingFunction);
else
displayedDoctors = displayedDoctors.OrderByDescending(orderingFunction);
displayedDoctors = displayedDoctors
.Skip(param.iDisplayStart)
.Take(param.iDisplayLength);
var aaData = displayedDoctors.Select(d => new string[] Convert.ToString(d.DoctorID), d.NameFull, d.Doctor_Email, d.Doctor_GMC, d.RegisteredDate.Value.ToString("dd/MM/yyyy"), d.LastLoginDate.Value.ToString("dd/MM/yyyy") ).ToArray();
return Json(new
sEcho = param.sEcho,
aaData = aaData,
iTotalRecords = allDoctors.Count(),
iTotalDisplayRecords = filteredDoctors.Count()
, JsonRequestBehavior.AllowGet);
RegisteredDate 和 LastLoginDate 都应该是英国日期,即以 dd/mm/yyyy 显示。它们保持这种格式,但是,排序似乎不是基于日期排序,它似乎只是将日期视为普通字符串。
在我的控制器操作中,您将能够看到我已尝试将日期保留为 uk 格式日期,以尝试排序正常工作,例如,但不幸的是它仍然无法正确排序。
sortColumnIndex == 4 ? c.RegisteredDate.Value.ToString("dd/MM/yyyy") : c.LastLoginDate.Value.ToString("dd/MM/yyyy"));
var aaData = displayDoctors.Select(d => new string[] Convert.ToString(d.DoctorID),d.NameFull,d.Doctor_Email, d.Doctor_GMC, d.RegisteredDate.Value.ToString("dd/MM/yyyy"), d.LastLoginDate.Value.ToString("dd/MM/yyyy") ).ToArray();
有人对我在哪里出错或如何解决有任何建议吗?
非常感谢任何帮助。
谢谢。
【问题讨论】:
【参考方案1】:如果您将日期保留为 DateTime 类型,它会起作用,所以这样做:
if(sortColumnIndex == 1 || sortColumnIndex == 2)
Func<doctor, string> orderingFunction = (c => sortColumnIndex == 1 ? c.Doctor_FName : c.Doctor_Email);
if(sortColumnIndex == 4)
Func<doctor, DateTime> orderingFunction = c => c.LastLoginDate);
因为 orderingFunction 可以有不同的数据类型,您可能必须在每个条件下进行排序,但可以在 1 行上完成,例如:
if(sortColumnIndex == 4)
Func<doctor, DateTime> orderingFunction = c => c.LastLoginDate);
filteredDoctors = Request["sSortDir_0"] == "asc" ? filteredDoctors.OrderBy(orderingFunction) : filteredDoctors.OrderByDescending(orderingFunction);
【讨论】:
【参考方案2】:您可以使用对象而不是字符串数据类型:
Func
【讨论】:
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