Kendo UI Scheduler：转换为datetime时发生溢出
我正在使用.NET MVC和（开源）Kendo UI Scheduler进行开发。我尝试使用javascript将调度程序中的事件保存/读取/更新/删除到我的数据库中。
但是我遇到了一些麻烦：将事件从调度程序保存到我的数据库时，我收到以下错误：
无法加载资源：服务器响应状态为500（内部服务器错误）：System.Data.SqlServerCe.SqlCeException：转换为datetime时发生溢出。
同时从数据库读取调度程序时：
未捕获的TypeError：无法调用方法＆＃39; getTimezoneOffset＆＃39;为null
我用Google搜索但却找不到任何解决方案，我按照文档编写：http://docs.telerik.com/kendo-ui/getting-started/using-kendo-with/aspnet-mvc/helpers/scheduler/ajax-editing并阅读有关Telerik Kendo UI Scheduler的所有相关文档......
我使用以下代码：
MODEL
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Data.Entity;
using System.ComponentModel.DataAnnotations;
using Kendo.Mvc.UI;
namespace Eindwerk.Models
{
public class BookingViewModel : ISchedulerEvent
{
[Key]
public int TaskID { get; set; }
public string Title { get; set; }
public string Description { get; set; }
private DateTime start;
public DateTime Start
{
get
{
return start;
}
set
{
start = value.ToUniversalTime();
}
}
private DateTime end;
public DateTime End
{
get
{
return end;
}
set
{
end = value.ToUniversalTime();
}
}
public string RecurrenceRule { get; set; }
public int? RecurrenceID { get; set; }
public string RecurrenceException { get; set; }
public bool IsAllDay { get; set; }
public int? OwnerID { get; set; }
public string eventRoom { get; set; }
public string eventAttend { get; set; }
public string eventExtra { get; set; }
public string eventRequest { get; set; }
public class CalendarDBContext : DbContext
{
public DbSet<BookingViewModel> Bookings { get; set; }
}
}
}
CONTROLLER
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using Eindwerk.Models;
using Kendo.Mvc.Extensions;
using Kendo.Mvc;
using Kendo.Mvc.UI;
using System.Data.Entity;
namespace Eindwerk.Controllers
{
public class HomeController : Controller
{
//
// GET: /Home/
private Reports.ReportsDBContext rdb = new Reports.ReportsDBContext();
// GET: /Reports/
public ActionResult Index()
{
return View(rdb.Events.OrderByDescending(p => p.Id).ToList());
return View();
}
private BookingViewModel.CalendarDBContext db = new BookingViewModel.CalendarDBContext();
public ActionResult Bookings_Read([DataSourceRequest]DataSourceRequest request)
{
using (var sampleDB = db)
{
IQueryable<BookingViewModel> Bookings = sampleDB.Bookings.ToList().Select(task => new BookingViewModel()
{
TaskID = task.TaskID,
Title = task.Title,
Start = DateTime.SpecifyKind(task.Start, DateTimeKind.Utc),
End = DateTime.SpecifyKind(task.End, DateTimeKind.Utc),
Description = task.Description,
IsAllDay = task.IsAllDay
}).AsQueryable();
return Json(Bookings.ToDataSourceResult(request), JsonRequestBehavior.AllowGet);
}
}
public ActionResult Bookings_Create([DataSourceRequest]DataSourceRequest request, BookingViewModel task)
{
if (ModelState.IsValid)
{
using (var sampleDB = db)
{
//Create a new Task entity and set its properties from the posted BookingViewModel
var entity = new BookingViewModel
{
TaskID = task.TaskID,
Title = task.Title,
Start = DateTime.SpecifyKind(task.Start, DateTimeKind.Utc),
End = DateTime.SpecifyKind(task.End, DateTimeKind.Utc),
Description = task.Description,
IsAllDay = task.IsAllDay
};
// Add the entity
sampleDB.Bookings.Add(entity);
//sampleDB.Bookings.AddObject(entity);
// Insert the entity in the database
sampleDB.SaveChanges();
// Get the TaskID generated by the database
task.TaskID = entity.TaskID;
}
}
// Return the inserted task. The scheduler needs the generated TaskID. Also return any validation errors.
return Json(new[] { task }.ToDataSourceResult(request, ModelState), JsonRequestBehavior.AllowGet);
}
public ActionResult Bookings_Update([DataSourceRequest]DataSourceRequest request, BookingViewModel task)
{
if (ModelState.IsValid)
{
using (var sampleDB = db)
{
// Create a new Task entity and set its properties from the posted TaskViewModel
var entity = new BookingViewModel
{
TaskID = task.TaskID,
Title = task.Title,
Start = task.Start,
End = task.End,
Description = task.Description,
RecurrenceRule = task.RecurrenceRule,
RecurrenceException = task.RecurrenceException,
RecurrenceID = task.RecurrenceID,
IsAllDay = task.IsAllDay,
OwnerID = task.OwnerID
};
// Attach the entity
sampleDB.Bookings.Attach(entity);
// Change its state to Modified so Entity Framework can update the existing task instead of creating a new one
//sampleDB.Entry(entity).State = EntityState.Modified;
// Or use ObjectStateManager if using a previous version of Entity Framework
sampleDB.Entry(entity).State = EntityState.Modified;
// Update the entity in the database
sampleDB.SaveChanges();
}
}
// Return the updated task. Also return any validation errors.
return Json(new[] { task }.ToDataSourceResult(request, ModelState));
}
public ActionResult Tasks_Destroy([DataSourceRequest]DataSourceRequest request, BookingViewModel task)
{
if (ModelState.IsValid)
{
using (var sampleDB = db)
{
// Create a new Task entity and set its properties from the posted TaskViewModel
var entity = new BookingViewModel
{
TaskID = task.TaskID,
Title = task.Title,
Start = task.Start,
End = task.End,
Description = task.Description,
RecurrenceRule = task.RecurrenceRule,
RecurrenceException = task.RecurrenceException,
RecurrenceID = task.RecurrenceID,
IsAllDay = task.IsAllDay,
OwnerID = task.OwnerID
};
// Attach the entity
sampleDB.Bookings.Attach(entity);
// Delete the entity
//sampleDB.Tasks.Remove(entity);
// Or use DeleteObject if using a previous versoin of Entity Framework
sampleDB.Bookings.Remove(entity);
// Delete the entity in the database
sampleDB.SaveChanges();
}
}
// Return the removed task. Also return any validation errors.
return Json(new[] { task }.ToDataSourceResult(request, ModelState));
}
}
}
查看
<!DOCTYPE html>
<html>
<head>
<script>
$(function () {
$('#scheduler').kendoScheduler({
date: new Date(Date.now()),
startTime: (new Date(2014, 6, 13, 7, 00, 00)),
height:800,
views: [{ type: "day", selected: true }, { type: 'week' }, { type: 'month' }],
timezone: "Etc/UTC",
dataSource:
{
transport:
{
read: { url: "@Url.Action("Bookings_Read","Home")", dataType: "json" },
update: { url: "@Url.Action("Bookings_Update","Home")", dataType: "json" },
create: { url: "@Url.Action("Bookings_Create","Home")", dataType: "json" },
destroy: { url: "@Url.Action("Bookings_Destroy","Home")", dataType: "json" },
parameterMap: function (options, operation) {
if (operation !== "read" && options.models) {
return { models: kendo.stringify(options.models) };
}
}
},
},
schema: {
model: {
id: "TaskID",
fields: {
TaskID: { type: "int" },
RecurrenceID: {type:"int?"}
}
}
},
group: {
resources: ["Rooms"]
},
resources: [
{
field: "attendees",
name: "Attendees",
dataSource: [
{ text: "IMD", value: 1, color: "#f8a398" },
{ text: "IMS", value: 2, color: "#51a0ed" },
{ text: "Toerisme", value: 3, color: "#56ca85" }
],
multiple: true,
title: "Attendees"
},
{
field: "roomId",
name: "Rooms",
dataSource: {
transport:
{
read: { url: "@Url.Action("Rooms_Read","Room")", dataType: "json" }
}
}
}
]
});
});
</script>
</head>
<body>
有人知道如何解决此错误？还是一个有说服力的例子？
非常感谢您的帮助！
数据库：
2 个答案:
答案 0 :(得分：0)
您的模型在C＃中看起来没问题，但是SQL类型是数据库中的“开始”和“结束”字段，因为错误发生在SQLServerCE和C＃视图模型之间。从this blog开始，数据库结构（尽管SQL Server 2012）显示如下：
答案 1 :(得分：0)
删除该行：
timezone: "Etc/UTC";
这条线似乎搞了调度程序。
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