我发现很难通过 Ajax post 向 Controller 发送数据，因为由于我的代码结构，要发送到 Controller 的对象不能在 ajax post 中使用。我正在使用 knockout 进行数据绑定(bind)更新按钮的单击事件。
这是我的代码
$(document).ready(function () {
var provider = function () {
var self = this;
self.providerID = ko.observable(providerEditInfo.ProviderID);
self.firstName = ko.observable(providerEditInfo.FirstName);
self.lastName = ko.observable(providerEditInfo.LastName);
self.contactEmail = ko.observable(providerEditInfo.ContactEmail);
self.NPI = ko.observable(providerEditInfo.NPI);
self.updateProviderDetails = function () {
$.ajax({
url: "/Provider/UpdateProviderDetails/",
type: "POST",
data: { providerForUpdate }, -- Cant send this
contentType: "application/json; charset=utf-8",
async: false,
success: function (result) {
if (result.url) {
location.href = result.url;
}
}
});
};
self.cancelEdits = function () {
if (confirm("Are you sure you want to Cancel?")) {
window.location.href = "/Provider/ShowTheListOfProviders";
}
};
}; //End of Constructor.
var providerForUpdate = new provider();
ko.applyBindings(providerForUpdate);
});
On the clck of Update Button,I am calling the 'updateProviderDetails' method.
HTML
@model Greenway.Demo.DataAccess.Entity.Provider
<body>
<div class="container">
<h1 class="col-sm-offset-2">Edit Provider Details:</h1>
<br />
<form class="form-horizontal" role="form" id="editProviderDetailsForm">
<div class="form-group">
<label class="col-sm-2 control-label labelfont">First Name:</label>
<div class="col-sm-6">
<input type="text" class="form-control" autofocus="autofocus" placeholder="Enter the First Name" id="firstName" name="firstName" data-bind="value:firstName , event: { keypress: allowOnlyAlphabets }">
</div>
</div>
<div class="form-group">
<label class="col-sm-2 control-label labelfont">Last Name:</label>
<div class="col-sm-6">
<input type="text" class="form-control" placeholder="Enter the Last Name" id="lastName" name="lastName" data-bind="value:lastName ,event: { keypress: allowOnlyAlphabets }">
</div>
</div>
<div class="form-group text-center">
<button type="Submit" data-bind="click: updateProviderDetails" class="btn btn-primary">Update</button>
<button type="button" data-bind="click: cancelEdits" class="btn btn-primary">Cancel</button>
</div>
</form>
</div>
</body>
<script type="text/javascript">
var providerEditInfo = @Html.Raw(Json.Encode(Model));
</script>
<script type="text/javascript" src="../../App_Scripts/Shared/Functions.js"></script>
有人可以指导我如何使用此代码结构将数据发送到 Controller 。我不能将 updateProviderDetails 放在构造函数之外，否则我无法绑定(bind)它。
最佳答案
使用ko.toJSON将 View 模型序列化为json:
self.updateProviderDetails = function () {
$.ajax({
url: "/Provider/UpdateProviderDetails/",
type: "POST",
data: ko.toJSON(self),
contentType: "application/json; charset=utf-8",
async: false,
success: function (result) {
if (result.url) {
location.href = result.url;
}
}
});
};
这也在 Knockout Tutorial 中
关于javascript - 在使用 knockout 绑定(bind)的同时使用 AJAX 发布数据，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/28462262/