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POmvc - binding JSON object
primarykey
Id
13376156
data
AcceptedAnswerId
13398726
AnswerCount
1
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CommentCount
3
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CreationDate
2012-11-14T09:32:04.020
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0
LastActivityDate
2012-11-15T13:44:01.660
LastEditDate
2012-11-14T13:46:05.997
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935018
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792
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text
Body
<p>I am following a simple video tutorial for Knockout.js by Steve Sanderson: <a href="http://channel9.msdn.com/Events/MIX/MIX11/FRM08" rel="nofollow">http://channel9.msdn.com/Events/MIX/MIX11/FRM08</a></p> <p>At the very end of it he performs an AJAX call to show how can you use knockout to process data on the server. I repeat all of what he is doing, but for some reason my JSON object doest bind to a POCO class correctly. This is an object I send from the view:</p> <pre><code>{"firstName":"Bartosz","lastName":"Malinowski","friends":[{"name":"Zofia"},{"name":"Zenon"}],"fullName":"Bartosz Malinowski"} </code></pre> <p>and then use this code to read it in the controller:</p> <pre><code>public JsonResult Save(Person person) { var message = string.Format("Saved {0} {1}", person.firstName, person.lastName); return Json(new { message }); } public class Person { public string firstName { get; set; } public string lastName { get; set; } public string fullName { get; set; } public ICollection<Friend> friends { get; set; } } public class Friend { public string Name { get; set; } } } </code></pre> <p>My code on the client side looks like this:</p> <pre><code>'@{ ViewBag.Title = "Home Page"; } <script src="../../Scripts/jquery.tmpl.js" type="text/javascript"></script> <p>First name: <input data-bind="value: firstName"/></p> <p>Last name: <input data-bind="value: lastName"/></p> <p>Full name: <span data-bind="text: fullName"></span></p> <h2>Friends (<span data-bind="text: friends().length"></span>)</h2> <ul data-bind="template: { name: 'friendsTemplate', foreach: friends }"></ul> <script id="friendsTemplate" type="text/html"> <li> <input data-bind="value: name"/> <button data-bind="click: remove">Remove</button></li> </script> <button data-bind="click: addFriend, enable: friends().length < 5">Add Friend</button> <button data-bind="click: save">Save</button> <script type="text/javascript"> function friend(name) { return { name: ko.observable(name), remove: function () { viewModel.friends.remove(this); } }; } var viewModel = { firstName: ko.observable("Bartosz"), lastName: ko.observable("Malinowski"), friends: ko.observableArray([new friend("Zofia"), new friend("Zenon")]), addFriend: function () { this.friends.push(new friend("Jan")); }, save: function () { $.ajax({ url: "@Url.Action("Save")", type: "post", data: ko.toJSON(this), contenttype: "application/json", success: function (result) { alert(result.message) } }); } }; viewModel.fullName = ko.dependentObservable(function () { return this.firstName() + " " + this.lastName(); }, viewModel); ko.applyBindings(viewModel); </script> </code></pre> <p>When I run it in debug mode and check person in the Save method parameter I've got null value for each Person property. So it just doesn't bind to me??</p>
Tags
<ajax><asp.net-mvc><json><binding>
Title
mvc - binding JSON object
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PostAcceptedAnswerId
1. PO
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1. This table or related slice is empty.
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1. PTQuestion
UserLastEditorUserId
1. USBartosz
UserOwnerUserId
1. USBartosz
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1. PO
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