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只是想创建我的第一个自定义绑定处理程序自定义绑定处理程序:没有发射
<input data-bind="value:firstName,valueUpdate:'afterkeydown'" type="text" />
<button data-bind="myhandler: firstName" ></button>
ko.bindingHandlers.myhandler =
{
update: function (element, valueAccessor) {
var value = ko.utils.unwrapObservable(valueAccessor);
$(element).css("background", "red");
console.log('update');
}
}
var vm = function() {
this.firstName = ko.observable('bert');
}
ko.applyBindings(new vm());
的事情是,当我更新的价值并不触发“更新”。我只在启动时被触发?这里是的jsfiddle链接: http://jsfiddle.net/dingen2010/c43hu/2/