MVC与MVVM的模型
在MVC实例项目中，为我们提供了简单的增删改查功能，而这种功能的实现与具体的Model很有关系，或者说它与后台数据库的关系过于紧密了，而对于开发人员来说当页面布局修改后，也会现时修改它们的Model部分，而对于MVVM思想体系来说，它可以不去修改后台Model，而后采用了一种前台绑定的方式，很好的实现了前台模块与后台Model的解耦！
实例代码
本实例主要展现了一个简单的列表操作，包括了添加，删除和修改，在使用knockoutjs实现它之后，使它的用户体验提升了一个台阶，对于代码的分层有了一个新的升华！
C#核心代码
public ActionResult Index()
{
return View(new List<Product>
{
new Product{ID=,Name="test1"},
new Product{ID=,Name="test2"},
new Product{ID=,Name="test3"},
new Product{ID=,Name="test4"},
new Product{ID=,Name="test5"},
new Product{ID=,Name="test6"},
});
}
JS核心代码
var People = function () {
this.ID = 0;
this.Name = "";
}
var model = function () {
self = this;
self.PeopleList = ko.observableArray(@Html.Raw(Json.Encode(Model)));
self.remove = function (o) { self.PeopleList.remove(o); };
self.selectItem = ko.observable();
self.editing = ko.observable(false);
self.add = function (o) {
self.editing(true);
self.selectItem(new People());
}
self.edit = function (o) {
self.editing(true);
self.selectItem(o);
}
self.selectItem.subscribe(function (o) {
// alert("要编辑记录ID是" + o.ID);
});
self.save = function (o) {
alert((o.ID > 0 ? "修改数据" : "新建数据") + o.Name);
}
self.cancle = function () {
self.editing(false);
}
}
HTML核心代码
<h3>
<a href="javascript:void(0)" data-bind="click:add">添加实体</a></h3>
<table>
<thead>
<tr>
<th>编号</th>
<th>姓名</th>
<th></th>
</tr>
</thead>
<tbody data-bind="template:{name:'list',foreach: PeopleList}">
</tbody>
</table>
<script type="text/html" id="list">
<tr>
<td><span data-bind="text:ID"></span></td>
<td><span data-bind="text:Name"></span>
</td>
<td><a href="javascript:void(0)" data-bind="click:$parent.remove">删除</a>
<a href="javascript:void(0)" data-bind="click:$parent.edit">编辑</a>
</td>
</tr>
</script>
<fieldset data-bind="with:selectItem,visible:editing">
<legend>正在<span data-bind="if:ID==0">新建</span><span data-bind="if:ID>0">编辑</span></legend>
姓名：
<input type="text" data-bind="value:Name" />
<input type="button" data-bind="click:$parent.save" value="保存" />
<input type="button" data-bind="click:$parent.cancle" value="取消" />
</fieldset>
运行效果图：
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" alt="" />
$.when实现方法回调
下面介绍JQ里的一个小功能，$.when($.ajax({})).done().done()....，它可以方便的实现方法的回调，done()代码块相关于ajax里的success节点里的内容，将代码从success节点拿出来，放到done()里，它可以使代码的层次感和可能性更强！
$.when($.ajax({
url: "/home/getProduct",
dataType: "JSON",
type: "GET",
success: function (data) {
alert(JSON.stringify(data));
}
})).done(function () { alert("哈哈，回调成功了！"); })
.done(function () { ko.applyBindings(new model()); });