5
ich versuche, eine List<Theatres> aus dem Blickfeld Controller zu senden, indem Sie mit AJAXPass mehrere Instanz im Hinblick auf die Steuerung mit Ajax
jeder theates haben eine TheatresName (string), TheatresNumber (int), HomeCinemaID (int), RowAmount (int).
hier Modellcode:
public class MovieTheaters
{
[Key]
public int MovieTheatersID { get; set; }
public int HomeCinemaID { get; set; }
public string TheatersName { get; set; }
public int NumberHall { get; set; }
public int RowAmount { get; set; }
//FK .
public virtual HomeCinema HomeCinema { get; set; }
public virtual ICollection<Rows> Rows { get; set; }
}
der Benutzer eingeben, wie viele Theater er dann brauchen für Schleife die Möglichkeit gab, sie zu schaffen.
Ansicht Code:
@model CimenaCityProject.Models.MovieTheaters
@{
ViewBag.Title = "Create";
}
<h2>Create New Theatres</h2>
@Html.AntiForgeryToken()
@{
int? maxNumberOfTheatres = ViewBag.number;
if (!maxNumberOfTheatres.HasValue)
{
maxNumberOfTheatres = 1;
}
}
@using (Html.BeginForm("Create", "Theatres", FormMethod.Post, new { name = "TheatresForm", id = "TheatresForm" }))
{
@Html.ValidationSummary(true)
<table>
<tbody>
@for (int i = 0; i < maxNumberOfTheatres.Value; i++)
{
<tr>
<td id="NewTheaters">
@ViewBag.ErrorMassage
<div style="position:relative; top: 0px; left: 205px; width: 278px;">
@string.Format("Theares Number {0}", i + 1)
</div>
<div>
<br />
<div class="form-group">
@Html.LabelFor(model => model.HomeCinemaID, "HomeCinemaID", new { @class = "control-label col-md-2" })
<div class="col-md-10">
@Html.DropDownList("HomeCinemaID")
@Html.ValidationMessageFor(model => model.HomeCinemaID)
</div>
<br />
</div>
<div class="form-group">
@Html.LabelFor(model => model.TheatersName, new { @class = "control-label col-md-2" })
<div class="col-md-10">
@Html.EditorFor(model => model.TheatersName)
@Html.ValidationMessageFor(model => model.TheatersName)
</div>
<br />
</div>
<div class="form-group">
@Html.LabelFor(model => model.NumberHall, new { @class = "control-label col-md-2" })
<div class="col-md-10">
@Html.EditorFor(model => model.NumberHall)
@Html.ValidationMessageFor(model => model.NumberHall)
</div>
<br />
</div>
<div class="form-group">
@Html.LabelFor(model => model.RowAmount, new { @class = "control-label col-md-2" })
<div class="col-md-10">
@Html.EditorFor(model => model.RowAmount)
@Html.ValidationMessageFor(model => model.RowAmount)
</div>
</div>
</div>
</td>
</tr>
}
</tbody>
</table>
}
<div class="form-group">
<div class="col-lg-push-9">
<input type="submit" name="Create" value="Create" id="Create" />
</div>
</div>
<div id="divLoading" style="display: none; align-items: center">
<img src="~/Image/Elements/ajax-loader.gif" />
</div>
<div id="divResult"></div>
<div>
@Html.ActionLink("Back to List", "Index")
</div>
@section Scripts {
@Scripts.Render("~/bundles/jqueryval")
}
Ajax-Code:
<script type="text/javascript">
$(document).on('#TheatresForm' ,function() {
var NewTheaters = [];
$('table tbody tr td').each(function() {
NewTheaters.push({
HomeCinemaID: $('#HomeCinemaID').val(),
TheatersName: $('#TheatersName').val(),
NumberHall: $('#NumberHall').val(),
RowAmount: $('#RowAmount').val()
});
});
$('#divLoading').show()
$.ajax({
url: '@Url.Action()',
type: 'POST',
traditional : true,
data: JSON.stringify(NewTheaters),
contentType: 'application/json; charset=utf-8',
success: function (result) {
success(result)
},
error: function (result) {
alert(result.responseText + "Error")
$('#divLoading').hide()
}
});
function success(result) {
alert("success")
$('#divResult').html(result)
$('#divLoading').hide()
}
});
-Controller-Code
// GET: /Theatres/Create
public ActionResult Create(int? id, int? number)
{
if (id == null)
{
ViewBag.HomeCinemaID = new SelectList(db.HomeCinemas, "HomeCinemaID", "CinemaName");
number = 1;
ViewBag.number = number;
}
else
{
ViewBag.HomeCinemaID = new SelectList(db.HomeCinemas.Where(x => x.HomeCinemaID == id).ToArray(), "HomeCinemaID", "CinemaName");
ViewBag.number = number;
}
ViewBag.ErrorMassage = "";
return View();
}
// POST: /Theatres/Create
[HttpPost]
public ActionResult Create(List<MovieTheaters> NewTheaters)
{
foreach (var movietheaters in NewTheaters)
{
if (db.Theaters.Where(x => x.TheatersName == movietheaters.TheatersName && x.HomeCinemaID == movietheaters.HomeCinemaID).FirstOrDefault() == movietheaters)
{
ViewBag.ErrorMassage = "You cant add this Theatres again. Choose another name.";
ViewBag.HomeCinemaID = new SelectList(db.HomeCinemas.Where(x => x.HomeCinemaID == movietheaters.HomeCinemaID).ToArray(), "HomeCinemaID", "CinemaName", movietheaters.HomeCinemaID);
return View(movietheaters);
}
else
{
if (ModelState.IsValid)
{
db.Theaters.Add(movietheaters);
db.SaveChanges();
return RedirectToAction("Create", "Rows", new { id = movietheaters.MovieTheatersID, rwcpcty = movietheaters.RowAmount, last = 1 });
}
}
ViewBag.ErrorMassage = "Try again later";
ViewBag.HomeCinemaID = new SelectList(db.HomeCinemas, "HomeCinemaID", "CinemaName", movietheaters.HomeCinemaID);
return View(movietheaters);
}
ViewBag.ErrorMassage = "Try again later";
ViewBag.HomeCinemaID = new SelectList(db.HomeCinemas, "HomeCinemaID", "CinemaName");
return View();
}
Evry Zeit es mir null werfen .. was ich habe zu machen?
Können Sie den Controller-Code und Modell bieten Gebraucht ?? –
ok ich habe den Beitrag bearbeitet –
Wo genau wirft es eine Ausnahme? Im Blick oder im Controller? Wie wäre es mit der Rückgabe eines JsonResult in Controller-Controller wie: Return Json (Data, JsonRequestBehavior.AllowGet); – Fabjan