我正在开发管理页面，但无法从 json 接收数据。 我有一个创建 View ，在其中我创建了一个脚本来在选择某种类型时显示我的局部 View 。但是当我选择酒店类型时，我的 Controller 没有接收到数据。当我选择其他类型时，效果很好。 谁能告诉我问题出在哪里？
我的代码:
Create.cshtml
@model ProjetoFinal.Models.Item
@{
ViewBag.Title = "";
}
<h2>@Resource.Criar</h2>
<a href="@Url.Action("ChangeLanguage_Create", "Trans", new { lang = "pt" })">Português</a> |
<a href="@Url.Action("ChangeLanguage_Create", "Trans", new { lang = "en" })">Inglês</a>
<br />
@using (Html.BeginForm("Create", "Trans", FormMethod.Post, new { enctype = "multipart/form-data" }))
{
@Html.AntiForgeryToken()
<div class="form-horizontal">
<hr />
<div class="form-group">
@Html.LabelFor(model => model.Titulo, htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
@Html.EditorFor(model => model.Titulo, new { htmlAttributes = new { @class = "form-control" } })
@Html.ValidationMessageFor(model => model.Titulo, "", new { @class = "text-danger" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.Descricao, htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
@Html.TextAreaFor(model => model.Descricao, new { @class = "form-control", @id = "Descricao" })
@Html.ValidationMessageFor(model => model.Descricao, "", new { @class = "text-danger" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.Main_Image, htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
<div class="col-md-10">
<input type="file" name="imagem_principal" id="createimageinput" />
@Html.ValidationMessageFor(model => model.Main_Image, "", new { @class = "text-danger" })
</div>
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.Localidade, htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
@Html.EditorFor(model => model.Localidade, new { htmlAttributes = new { @class = "form-control" } })
@Html.ValidationMessageFor(model => model.Localidade, "", new { @class = "text-danger" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.Endereco, htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
@Html.EditorFor(model => model.Endereco, new { htmlAttributes = new { @id = "Endereco", @class = "form-control" } })
@Html.ValidationMessageFor(model => model.Endereco, "", new { @class = "text-danger" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.Latitude, htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
@Html.EditorFor(model => model.Latitude, new { htmlAttributes = new { @id = "Latitude", @class = "form-control", @readonly = "readonly" } })
@Html.ValidationMessageFor(model => model.Latitude, "", new { @class = "text-danger" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.Longitude, htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
@Html.EditorFor(model => model.Longitude, new { htmlAttributes = new { @id = "Longitude", @class = "form-control", @readonly = "readonly" } })
@Html.ValidationMessageFor(model => model.Longitude, "", new { @class = "text-danger" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.Tipo, htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
<!--Ao escolher o tipo vai aparecer os campos respetivos dessa categoria
atraves da funcao ddldropdown-->
@Html.DropDownListFor(model => model.Tipo, new SelectList(Model.tipos, "ID", "Tipo"), Resource.Selecionar_Tipo, htmlAttributes: new { @id = "ddldropdown", @class = "form-control" })
</div>
</div>
<div id="partialDiv">
</div>
<div class="form-group">
<div class="col-md-offset-2 col-md-10">
<input type="submit" id="btnsave" value="@Resource.Criar" class="btn btn-default" />
</div>
</div>
</div>
@section Scripts
{
<!--Script to add Views from the Others folder in the "partialDiv"-->
<script type="text/javascript">
$("#ddldropdown").change(function () {
var txt = $("#ddldropdown option:selected").text();
if (txt == null || txt == "Selecionar Tipo")
$('#partialDiv').html('');
else if (txt == "Teatro" || txt == "Feira" || txt == "Exposição" || txt == "Hotel" || txt == "Cinema" || txt == "Musica") {
$.ajax({
type: 'get',
url: '/Outros/Create_' + txt,
dataType: 'html',
success: function (html) {
$('#partialDiv').html(html);
}
});
}
else if (txt == "Parques/Percursos Pedestres") {
$.ajax({
type: 'get',
url: '/Outros/Create_Percurso',
dataType: 'html',
success: function (html) {
$('#partialDiv').html(html);
}
});
}
else {
$.ajax({
type: 'get',
url: '/Outros/Create_Other',
dataType: 'html',
success: function (html) {
$('#partialDiv').html(html);
}
});
}
});
</script>
<!--Script to submit partialDiv data-->
<script type="text/javascript">
window.jQuery(document).ready(function () {
$('#btnsave').click(function () {
var txt = $("#ddldropdown option:selected").text();
var frm = $("form");
var data = new FormData($("form")[0]);
if (txt == "Teatro" || txt == "Feira" || txt == "Exposição" || txt == "Hotel" || txt == "Cinema" || txt == "Musica") {
var files = $("#createimageinput").get(0).files;
// Add the uploaded file to the form data collection
if (files.length > 0) {
for (f = 0; f < files.length; f++) {
data.append("imgfile", files[f]);
}
}
$.ajax({
url: '/Outros/Create_' + txt,
method: "POST",
processData: false,
data: data,
dataType: 'html',
contentType: false,
});
}
else if (txt == "Parques/Percursos Pedestres")
{
$.ajax({
url: '/Outros/Create_Percurso',
method: "POST",
processData: false,
data: data,
dataType: 'html',
contentType: false,
});
}
else
{
if (txt != null || txt != "Selecionar Tipo")
{
$.ajax({
url: '/Outros/Create_Other',
method: "POST",
processData: false,
data: data,
dataType: 'html',
contentType: false,
});
}
}
});
});
</script>
<!--Script to place the Autocomplete at the Address-->
<script>
// This example requires the Places library. Include the libraries=places
// parameter when you first load the API. For example:
// <script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyCvSxmjQNuUVyhYFJ8SmXHa0sQKgpiLBLA&libraries=places">
function initMap() {
google.maps.event.addDomListener(window, 'load', function () {
var options = {
types: ['geocode'],
componentRestrictions: { country: "pt" }
};
var input = document.getElementById('Endereco');
var autocomplete = new google.maps.places.Autocomplete(input, options);
google.maps.event.addListener(autocomplete, 'place_changed', function () {
var near_place = autocomplete.getPlace();
document.getElementById('Latitude').value = near_place.geometry.location.lat();
document.getElementById('Longitude').value = near_place.geometry.location.lng();
});
});
}
$("#Endereco").change(function () {
document.getElementById('Latitude').value = '';
document.getElementById('Longitude').value = '';
});
</script>
<!--Google API-->
<script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyCvSxmjQNuUVyhYFJ8SmXHa0sQKgpiLBLA&libraries=places&callback=initMap"
async defer></script>
<script type="text/javascript">
$('#btnsave').click(function () {
var form = $("#formH");
var url = form.attr("action");
var formData = form.serialize();
$.post(url, formData, function (data) {
$("#msg").html(data);
});
})
</script>
}
<div>
@Html.ActionLink(Resource.Voltar, "Index")
</div>
}
Create_Hotel.cshtml
@model ProjetoFinal.Models.Hotel
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
@using (Html.BeginForm("Create_Hotel", "Outros", FormMethod.Post))
{
<div class="form-horizontal">
@Html.ValidationSummary(true, "", new { @class = "text-danger" })
<div class="form-group">
@Html.LabelFor(model => model.Outras_Imagens, htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
<div class="col-md-10">
<input type="file" name="images" multiple="multiple" id="imagens"/>
@Html.ValidationMessageFor(model => model.Outras_Imagens, "", new { @class = "text-danger" })
</div>
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.Preco, htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
@Html.EditorFor(model => model.Preco, new { htmlAttributes = new { @type = "number", @min = "0", @step = "0.01", @value = "0", @class = "form-control" } })
@Html.ValidationMessageFor(model => model.Preco, "", new { @class = "text-danger" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.Tipo_Hotel, htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
@Html.EditorFor(model => model.Tipo_Hotel, new { htmlAttributes = new { @class = "form-control" } })
@Html.ValidationMessageFor(model => model.Tipo_Hotel, "", new { @class = "text-danger" })
</div>
</div>
<div class="form-group" id="div_comodidades">
@Html.LabelFor(model => model.Comodidades, htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10" id="divCom">
<div class="input-group">
<span class="input-group-btn">
@Html.EditorFor(model => model.Comodidades, new { htmlAttributes = new { @id = "comodidades", @class = "form-control" } })
@Html.ValidationMessageFor(model => model.Comodidades, "", new { @class = "text-danger" })
<input type="button" class="btn btn-primary" id="com" value="+" onclick="addComodidades()" />
</span>
</div>
</div>
</div>
<div class="form-group" id="div_condicoes">
@Html.LabelFor(model => model.Condicoes, htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10" id="divCon">
<div class="input-group">
<span class="input-group-btn">
@Html.EditorFor(model => model.Condicoes, new { htmlAttributes = new { @class = "form-control" } })
@Html.ValidationMessageFor(model => model.Condicoes, "", new { @class = "text-danger" })
<input type="button" class="btn btn-primary" value="+" onclick="addCondicoes()" />
</span>
</div>
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.Telefone1, htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
@Html.EditorFor(model => model.Telefone1, new { htmlAttributes = new { @type = "number", @class = "form-control" } })
@Html.ValidationMessageFor(model => model.Telefone1, "", new { @class = "text-danger" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.Telefone2, htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
@Html.EditorFor(model => model.Telefone2, new { htmlAttributes = new { @type = "number", @class = "form-control" } })
@Html.ValidationMessageFor(model => model.Telefone2, "", new { @class = "text-danger" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.Email, htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
@Html.EditorFor(model => model.Email, new { htmlAttributes = new { @class = "form-control" } })
@Html.ValidationMessageFor(model => model.Email, "", new { @class = "text-danger" })
</div>
</div>
<div class="form-group">
@Html.LabelFor(model => model.Avaliacao, htmlAttributes: new { @class = "control-label col-md-2" })
<div class="col-md-10">
@Html.EditorFor(model => model.Avaliacao, new { htmlAttributes = new { @type = "number", @class = "form-control" } })
@Html.ValidationMessageFor(model => model.Avaliacao, "", new { @class = "text-danger" })
</div>
</div>
</div>
@section Scripts
{
<script type="text/javascript">
var cont = 0;
var cont1 = 0;
//function to add more fields for the user to enter more comodidades
function addComodidades() {
cont++;
$("#div_comodidades").append(`<div class="col-md-10" id="campo` + cont + `" style="margin-left:16.7%">
<div class="input-group">
<span class="input-group-btn">
<input class="form-control text-box single-line" name="Comodidades" placeholder="Comodidades" type="text" value="" id="input_comodidades` + cont + `"/>
<span class="field-validation-valid text-danger" data-valmsg-for="Comodidades" data-valmsg-replace="true"></span>
<input type="button" id="` + cont + `" class="btn btn-primary" value="-" style="padding-left:15px;"/>
</span>
</div>
</div>`);
}
//function to add more fields for the user to enter more condicoes
function addCondicoes() {
cont1++;
$('#div_condicoes').append(`<div class="col-md-10" id="campo1` + cont1 + `" style="margin-left:16.7%">
<div class="input-group">
<span class="input-group-btn">
<input class="form-control text-box single-line" name="Condicoes" placeholder="Condicoes" type="text" value="" id="input_condicoes` + cont1 + `" />
<span class="field-validation-valid text-danger" data-valmsg-for="Condicoes" data-valmsg-replace="true"></span>
<input type="button" id="` + cont1 + `" class="btn btn-primary" value="-" style="padding-left:15px;"/>
</span>
</div>
</div>`);
}
//function to remove the comodidades field that the user added
$('#div_comodidades').on('click', '.btn-primary', function () {
var button_id = $(this).attr("id");
$('#campo' + button_id + '').remove();
});
//function to remove the condicoes field that the user added
$('#div_condicoes').on('click', '.btn-primary', function () {
var button_id = $(this).attr("id");
$('#campo1' + button_id + '').remove();
});
</script>
}
}
@{
Layout = null;
}
TransController.cs
public class TransController : Controller
{
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult Create(FormCollection formCollection)
{
Item item = new Item();
//add the database
}
}
OutrosController.cs
public class OutrosController : Controller
{
[HttpGet]
public ActionResult Create_Hotel()
{
Hotel hotel = new Hotel();
return View(hotel);
}
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult Create_Hotel(Hotel hotel, HttpPostedFileBase[] images)
{
//add the database
return View(hotel);
}
(模型)Hotel.cs
public class Hotel
{
public int ID { get; set; }
public String Preco { get; set; }
public String Comodidades { get; set; }
public List<String> array_comodidades { get; set; }
public String Condicoes { get; set; }
public List<String> array_condicoes{ get; set; }
[Display(Name = "Telefone")]
public int? Telefone1 { get; set; }
[Display(Name = "Telemovel/Fax")]
public int? Telefone2 { get; set; }
public String Email { get; set; }
public String Tipo_Hotel { get; set; }
[Range(0, 5)]
public String Avaliacao { get; set; }
public List<Imagem> Imagens { get; set; }
[Display(Name = "Imagens_Secundárias", ResourceType = typeof(Resource))]
public String Outras_Imagens { get; set; }
public class TransmontanosDBContext : DbContext
{
public DbSet<Hotel> Transmontanos { get; set; }
}
}
问题:
最佳答案
您的 ajax 请求指定了 type、url、dataType 和一个回调 success 函数，但它从未真正发送任何带有它的表单数据(如果您不使用表单将数据提交到服务器，则不知道为什么这些字段以任何方式出现在表单中 - 但这是与您发布的问题不同的问题。
要解决您的问题，您应该将您的 ajax 请求更改为 POST 而不是 GET 并包含您的模型数据，如下所示:
var model = { Id = $("#Id").val(),
Preco = $("#Preco").val(),
//populate the rest of your fields here just like Id
};
$.ajax({
type: "POST",
data: JSON.stringify(model),
url: '/Outros/Create_Percurso',
contentType: "application/json",
success: function (html) {
$('#partialDiv').html(html);
}
})
关于c# - Controller 收不到来自json的数据，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/65050536/