Knockoutjs实战开发：创建自定义绑定(Creating custom bindings)
<div id="cnblogs_post_body">在使用Knockoutjs时我们并不仅仅限于使用内建的绑定，比如：click、value等，我们可以创建自己的绑定规则。Knockoutjs为我们提供了非常灵活的支持，能够让我们自己去处理非常复杂的业务并且构造出可重用性的绑定。例如我们可以创建交互式的组件，比如表格、网格等。下面我们就来看看怎么一步步创建自定义绑定。一、等级我们的绑定(Registering your binding)
我们可以通过ko.bindingHandlers来进行绑定。
<div class="cnblogs_code"> 1 ko.bindingHandlers.yourBindingName = { 2 init: function(element, valueAccessor, allBindingsAccessor, viewModel, bindingContext) { 3 // This will be called when the binding is first applied to an element 4 // Set up any initial state, event handlers, etc. here 5 }, 6 update: function(element, valueAccessor, allBindingsAccessor, viewModel, bindingContext) { 7 // This will be called once when the binding is first applied to an element, 8 // and again whenever the associated observable changes value. 9 // Update the DOM element based on the supplied values here. 10 } 11 };
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