KnockoutJS-绑定到字典集合 [英] KnockoutJS - Databind to a dictionary collection
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问题描述
如何使用KnockoutJS将字典集合绑定到选择列表.
How do I use KnockoutJS to bind a dictionary collection to a select list.
如果我的目的地"字典在JSON中如下所示:
If my "Destinations" dictionary looks like this in JSON:
{"Europe":"Europe incl Egypt, Turkey & Tunisia","ANZO":"Australia & New Zealand","WorldwideUSA":"Worldwide (incl USA & Canada)"}
如何将其绑定到选择列表.像这样:
How do I bind this to a select list. Something like this:
data_bind="value: Destination, options: Destinations.Value, optionsText: Destinations.Key"
推荐答案
通常,在处理字典时,您需要将其映射到包含具有键/值属性的对象的数组.
Typically, when dealing with a dictionary, you will want to map it to an array containing objects with key/value properties.
会是这样的:
function mapDictionaryToArray(dictionary) {
var result = [];
for (var key in dictionary) {
if (dictionary.hasOwnProperty(key)) {
result.push({ key: key, value: dictionary[key] });
}
}
return result;
}
此处提供示例: http://jsfiddle.net/rniemeyer/7yDTJ/
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