我正在将我的思维方式和编程从Webforms转换为MVC3。为了记录,它伤害了我的头脑。
所以我正在创建一个具有月视图的日历(页面仅显示该月的日期和事件)。我把两个按钮上一个和下一个按钮从一个月到另一个月。在Webforms中,任何更改都会发生在Calendar.aspx上。但是, 似乎 我必须制作两个ActionResults(都是HttpPost)。一个进入Previous视图,另一个进入Next视图。只是为了得到同样的效果。我希望只更新Index ActionResult / View上的日历,但我不知道该怎么做。我的索引视图如下。
长话短说,有没有办法更新日历并返回索引视图?或者,当我点击相应的按钮(上一页和下一页)时,我是否必须制作另外两个视图(上一页和下一页)来显示新月?
@model HTMLMVCCalendar.Models.MonthModel
@{
ViewBag.Title = "Home Page";
int month = Model.Month;
int year = Model.Year;
int numberOfDays = DateTime.DaysInMonth(year, month);
int startDay = (int)(Convert.ToDateTime(month + "/1/" + year).DayOfWeek);
int startCount = 1;
}
<h2>@ViewBag.Message</h2>
<p>
To learn more about ASP.NET MVC visit <a href="http://asp.net/mvc" title="ASP.NET MVC Website">http://asp.net/mvc</a>.
</p>
<div>
<table id="calendar">
<thead>
<tr>
<th id="monthHeader" colspan="7">
<h3>
@{
@Convert.ToDateTime(month + "/1/" + year).ToString("MMMM");
}
</h3>
</th>
</tr>
<tr>
<th>Sun</th>
<th>Mon</th>
<th>Tues</th>
<th>Wed</th>
<th>Thur</th>
<th>Fri</th>
<th>Sat</th>
</tr>
</thead>
<tbody>
<tr>
@for (int i = 0; i < startDay; ++i)
{
@:<td><div><span> </span></div><div><span> </span></div></td>
}
@for (int j = startDay; j < ((numberOfDays + startDay) + 1); ++j)
{
<td>
<div><span>@startCount</span></div>
<div>
<span>
@{
var todaysEvents = Model.AllDays.ToList().FindAll(d => d.CalDate.Day == startCount);
foreach(HTMLMVCCalendar.Models.CalendarModel eventsToday in todaysEvents)
{
foreach(HTMLMVCCalendar.Models.EventModel eventToday in eventsToday.CalEvents)
{
<text>
@eventToday.DayCode:<br />
@eventToday.Subject:<br />
@eventToday.EventDesc<br /><br />
</text>
}
}
}
</span>
</div>
</td>
if ((j + 1) % 7 == 0)
{
@:</tr><tr>
}
++startCount;
}
</tr>
</tbody>
</table>
<div>
<input id="previous" type="submit" value="submit" />
<input id="next" type="submit" value="submit" />
</div>
</div>
更新 我试过这个,我认为它应该有效。不知道为什么没有?
<div>
@using (Html.BeginForm("Previous", "Home"))
{
<input id="previous" type="submit" value="Previous" />
}
@using (Html.BeginForm("Next", "Home"))
{
<input id="next" type="submit" value="Next" />
}
</div>
public ActionResult Index()
{
ViewBag.Message = "Welcome to ASP.NET MVC!";
int month;
int year;
int.TryParse(ViewBag.Year, out year);
int.TryParse(ViewBag.Month, out month);
Calendar monthEventsCal = new Calendar();
HTMLMVCCalendar.Models.MonthModel allMonthEvents = monthEventsCal.monthEvents(year, month);
return View("Index", allMonthEvents);
}
[HttpPost]
public ActionResult Previous(HTMLMVCCalendar.Models.MonthModel prevMonth)
{
Calendar monthEventsCal = new Calendar();
var newMonth = monthEventsCal.previousMonth(prevMonth.Year, prevMonth.Month);
ViewBag.Month = newMonth.Item2;
ViewBag.Year = newMonth.Item1;
return RedirectToAction("Index");
}
[HttpPost]
public ActionResult Next(HTMLMVCCalendar.Models.MonthModel nextMonth)
{
Calendar monthEventsCal = new Calendar();
var newMonth = monthEventsCal.nextMonth(nextMonth.Year, nextMonth.Month);
ViewBag.Month = newMonth.Item2;
ViewBag.Year = newMonth.Item1;
return RedirectToAction("Index");
}
答案 0 :(得分:1)
建议的可行方法
public virtual ActionResult Index(int? month)
{
int relativeMonth = 0;
if(month.HasValue)
relativeMonth = month.Value;
//Create ViewModel fetching calender data using relativeMonth value.
//For example if relativeMonth is 0 fetch current month view model.
//If relative month is -3 fetch calendar data from three months ago.
if(Request..IsAjaxRequest()) //Optional. If you want ajax.
return PartialView("Calendar", model);
return View(model);
}
使用此方法,您的下一个和上一个按钮现在是以下链接,其中Previous将链接到relativeMonth - 1,next接下来是relativeMonth + 1.我不认为发布它们是必要的,因为您实际上并未提交任何表单数据(使用这种方法,我会将下一个和上一个链接设置为按钮样式)。
如果你想启用ajax,我会将你的日历视图放在一个单独的cshtml中,并在index.cshtml中将其称为部分视图。
答案 1 :(得分:0)
有几种方法可以做到这一点,最简单的方法是执行ajax调用并使用返回的数据更新视图 http://bob-the-janitor.blogspot.com/2010/12/easy-ajax-with-aspnet-mvc-and-jquery.html 如果你想获得幻想,你甚至可以从ajax调用返回一个视图,并替换你当前的视图,如下所示 http://bob-the-janitor.blogspot.com/2011/11/more-ajax-with-mvc-using-partial-views.html