3
有没有办法向WinJS.Binding.converter()
函数发送多个参数?请看下面的数据和输出:发送多个参数到WinJS.Binding.converter()函数
{ contactName: "Tara Miller", mainNumber: "555-405-6190", alternateNumber: "555-209-1927" },
{ contactName: "Bryan Bond", alternateNumber: "555-574-4270" },
{ contactName: "Jenna Siever", mainNumber: "555-843-8823", alternateNumber: "555-799-5424" },
下面是HTML。该MyData.chooseBestNumber
转换器的功能是用来显示无论是一个人的主要电话号码或将“无主号”,如果他们没有一个主号:
<div id="listViewTemplate" data-win-control="WinJS.Binding.Template">
<div class="contactCard">
<div data-win-bind="innerText: contactName"></div>
<div data-win-bind="innerText: mainNumber MyData.chooseBestNumber"></div>
</div>
</div>
这里是JS定义转换器功能:
WinJS.Namespace.define("MyData", {
chooseBestNumber: WinJS.Binding.converter(function (mainNumber) {
if (mainNumber) return mainNumber;
else return "no main number";
}),
});
下面是我最终希望能够做到的......将多个参数传递到转换函数,以便我可以返回主数字(如果已定义),备用数字(作为后备)或消息(如果一切都失败):
WinJS.Namespace.define("MyData", {
chooseBestNumber: WinJS.Binding.converter(function (mainNumber, alternateNumber) {
if (mainNumber) return mainNumber;
else if (alternateNumber) return alternateNumber;
else return "no phone numbers";
}),
});
是否可以向WinJS.Binding.converter()
函数发送多个参数?