javascript - ASP.NET CORE 2.1 with knockout js 我没有收到模型中的数据?
问题描述
我是 ASP.NET CORE 的新手,我正在从淘汰赛 js 发送绑定数据,但我没有在控制器中收到它,如下图所示,
我不知道为什么我没有得到我通过knockout js发送的模型,一开始我遇到了一个问题,因为JSON格式的数据输出是camelCase,但是我使用以下命令通过添加它解决了它到 STARTUP,
services.AddMvc (). AddJsonOptions ( options =>
options.SerializerSettings.ContractResolver = new DefaultContractResolver ()
);
实现该命令已经在 PascalCase 中给了我数据的输出,但是我有一个带有 bindadas 属性的表单,它不会将数据发送到控制器,这是我的表单代码,
<div id="divCreateGenders" data-bind="visible: IsNew">
<form id="FormCreateGenders" method="post">
<div class="form-horizontal" data-bind="with: GenderModel">
<h3><strong>Crear Nuevo</strong></h3>
<br />
<div class="form-group">
<label class="control-label col-md-2"><strong>Codigo:</strong></label>
<div class="col-md-4">
<input id="TextboxGenderId" name="TextboxGenderId" type="text" class="form-control" data-bind="value: GenderId" maxlength="1" placeholder="Por ejemplo, I" required />
</div>
</div>
<div class="form-group">
<label class="control-label col-md-2"><strong>Genero:</strong></label>
<div class="col-md-4">
<input id="TextboxGenderName" name="TextboxGenderName" type="text" class="form-control" data-bind="value: GenderName" maxlength="15" placeholder="Introduzca un genero..." required />
</div>
</div>
<div class="form-group">
<div class="col-md-offset-2 col-md-10">
<button class="btn btn-success" data-bind="click: $parent.Create">Crear</button>
</div>
</div>
</div>
</form>
</div>
这是我的javascript代码,
// 模型函数 genderModel() { var genderModel = this;
genderModel.GenderId = ko.observable();
genderModel.GenderName = ko.observable();
genderModel.CreateBy = ko.observable();
genderModel.CreationDate = ko.observable();
genderModel.ModifiedBy = ko.observable();
genderModel.ModifiedDate = ko.observable();
}
// ViewModel 函数 GenderViewModel() { var genderViewModel = this;
//Variables publicas//
genderViewModel.GenderModel = ko.observable(new genderModel());
genderViewModel.Genders = ko.observableArray();
genderViewModel.IsNew = ko.observable(false);
genderViewModel.IsBackToListButton = ko.observable(false);
genderViewModel.IsEdit = ko.observable(false);
genderViewModel.IsNewButton = ko.observable(true);
genderViewModel.IsDetails = ko.observable(false);
genderViewModel.ShowResult = ko.observable(true);
//Metodos Publicos//
genderViewModel.New = function () {
genderViewModel.IsNew(true);
genderViewModel.IsBackToListButton(true);
genderViewModel.IsNewButton(false);
genderViewModel.IsEdit(false);
genderViewModel.IsDetails(false);
genderViewModel.ShowResult(false);
genderViewModel.Genders.removeAll();
genderViewModel.GenderModel().GenderId(undefined);
genderViewModel.GenderModel().GenderName(undefined);
genderViewModel.GenderModel().CreateBy(undefined);
genderViewModel.GenderModel().CreationDate(undefined);
genderViewModel.GenderModel().ModifiedBy(undefined);
genderViewModel.GenderModel().ModifiedDate(undefined);
$('#TextboxGenderId').focus();
};
genderViewModel.Delete = function (model) {
swal({
title: "Esta seguro?",
text: "Que desea eliminar este genero?",
type: "warning",
showCancelButton: true,
confirmButtonClass: "btn-danger",
confirmButtonText: "Si",
cancelButtonText: "Cancelar",
closeOnConfirm: false,
closeOnCancel: false
},
function (isConfirm) {
if (isConfirm) {
$.ajax({
url: '/AdminGenders/Delete',
data: ko.toJSON(model),
dataType: "json",
type: "POST",
contentType: "application/json; charset=utf-8",
async: true,
success: function (data) {
if (data.Success) {
genderViewModel.LoadAll();
swal("Eliminado!", "Se ha elimanado el genero satisfactoriamente", "success");
}
else {
swal("Error eliminando el genero!", data.Data, "error")
}
}
});
} else {
swal("Cancelado!", "El genero no ha sido elimanado", "error");
}
});
};
genderViewModel.Details = function (model) {
genderViewModel.IsNew(false);
genderViewModel.IsNewButton(false);
genderViewModel.IsBackToListButton(true);
genderViewModel.IsDetails(true);
genderViewModel.ShowResult(false);
genderViewModel.GenderModel().GenderId(model.GenderId);
genderViewModel.GenderModel().GenderName(model.GenderName);
genderViewModel.GenderModel().CreateBy(model.CreateBy);
genderViewModel.GenderModel().CreationDate(model.CreationDate);
genderViewModel.GenderModel().ModifiedBy(model.ModifiedBy);
genderViewModel.GenderModel().ModifiedDate(model.ModifiedDate);
$.ajax({
url: '/AdminGenders/Detail',
data: ko.toJSON(model),
dataType: "json",
type: "POST",
contentType: "application/json; charset=utf-8",
async: true,
success: function (data) {
if (data.Success) {
}
else {
alert(data.Data);
}
},
error: function (ex) {
swal("Error mostrando el genero!", "Ha ocurrido un error mientras se mostrando el genero!", "error")
}
});
};
genderViewModel.Edit = function (model) {
genderViewModel.IsNewButton(false);
genderViewModel.IsBackToListButton(true);
genderViewModel.ShowResult(false);
genderViewModel.IsDetails(false);
genderViewModel.IsNew(false);
genderViewModel.IsEdit(true);
genderViewModel.GenderModel().GenderId(model.GenderId);
genderViewModel.GenderModel().GenderName(model.GenderName);
genderViewModel.GenderModel().CreateBy(model.CreateBy);
genderViewModel.GenderModel().CreationDate(model.CreationDate);
genderViewModel.GenderModel().ModifiedBy(model.ModifiedBy);
genderViewModel.GenderModel().ModifiedDate(model.ModifiedDate);
$('#TextboxGenderId').focus();
};
genderViewModel.Create = function () {
if (genderViewModel.IsNew()) {
$.ajax({
url: '/AdminGenders/Create',
data: ko.toJSON(genderViewModel.GenderModel()),
dataType: "json",
type: "POST",
contentType: "application/json; charset=utf-8",
async: true,
success: function (data) {
if (data.Success) {
$('#TextboxGenderId').val('');
$('#TextboxGenderName').val('');
$('#TextboxGenderId').focus();
swal("Genero creado!", "Se ha registrado correctamente!", "success")
}
else {
swal("Error creando el genero!", data.Data, "error")
}
},
error: function (ex) {
alert('Ocurrión un error');
}
});
}
};
genderViewModel.Update = function (model) {
if (genderViewModel.IsEdit()) {
$.ajax({
url: '/AdminGenders/Update',
data: ko.toJSON(model),
dataType: "json",
type: "POST",
contentType: "application/json; charset=utf-8",
async: true,
success: function (data) {
if (data.Success) {
genderViewModel.BackToList();
swal("Genero actualizado!", "Se ha modificado correctamente!", "success")
}
else {
swal("Error actualizando el genero!", data.Data, "error")
}
},
error: function (ex) {
alert('Ocurrión un error');
}
});
}
};
genderViewModel.BackToList = function () {
genderViewModel.IsNew(false);
genderViewModel.IsBackToListButton(false);
genderViewModel.IsEdit(false);
genderViewModel.IsDetails(false);
genderViewModel.IsNewButton(true);
genderViewModel.ShowResult(true);
genderViewModel.LoadAll();
};
genderViewModel.LoadAll = function () {
LoadListGenders();
};
// Metodos Privados //
var LoadListGenders = function () {
$.ajax({
url: '/AdminGenders/GetGender',
data: null,
dataType: "json",
type: "POST",
contentType: "application/json; charset=utf-8",
async: true,
success: function (data) {
if (data.Success) {
genderViewModel.Genders.removeAll();
genderViewModel.Genders(data.Data);
}
else {
alert(data.Data);
}
},
error: function (ex) {
alert('Ocurrión un error, cargando los generos.');
}
});
};
}
jQuery(function () {
var genderViewModel = new GenderViewModel();
genderViewModel.LoadAll();
ko.applyBindings(genderViewModel);
});
我不知道为什么它不起作用,因为我在 ASP.NET MVC5 中有相同的代码,但我正在迁移到 ASP.NET CORE 并且我遇到了这个问题,我将不胜感激
解决方案
我最好的猜测是您的服务器需要一个form
有效负载,而您的 javascript 客户端发送一个有效负载JSON
。
由于你的 js 发送的是 JSON,如果你的控制器没有[ApiController]
属性,请添加一个[FromBody]
属性,以便 modelbinder 知道绑定源:
// 假设你的控制器不是 ApiController public async Task<JsonResult> Create( [FromBody] Gender 性别) { 如果(模型状态。IsValid){ // ... 模型绑定成功 } 别的{ // ... } }
或者,[ApiController]
如果您的控制器是 ApiController,请使用:
[API控制器] [Route("/AdminGenders")] 公共类 AdminGendersController : ControllerBase { 公共异步任务<JsonResult> 创建(性别性别) { ... } }
请注意,在 ASP.NET Core 中,使用 a 注释的控制器与[ApiController]
普通控制器不同。如果您的控制器有一个[ApiController]
,则默认情况下操作方法需要一个 JSON 正文。否则,它需要一个表单。
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