Dojo：访问dijit.form.Select中点击的项目？ [英] Dojo: Getting access to the clicked item in a dijit.form.Select?

问题描述

我有一个dijit选择小部件，当用户点击其中一个下拉项目时，需要做一些事情。意义我需要访问点击的项目，以检索一些信息，并调用我自己的一个功能。

I have a dijit Select widget and need to do something when the user clicks one of the dropdown items. Meaning I need access to the clicked item, to retrive some information, and call one of my own functions.

我已经测试了在选择和我附加一个onChange可以获得文本值选择正确。但我需要对象而不是价值。该对象在数据信息属性中保存更多值。

I've tested to attach an onChange on the select and I can get the text value selected fine. But I need the object and not the value. The object holds more values in a data-info-attribute.

基本上我要实现的是在列表中显示一个值，但是发送更多的值选择后填充其他字段。

Basically what I'm trying to achieve is to show one value in the list but send along more values to populate other fields when selected.

背景：这是一个通过服务器功能填充AJAX的打字头字段。有一个商店，但它是空的（据我所知），所以我不成功尝试： .store.fetchItemByIdentity - 总是没有返回。

Background: This is a typeahead field populated thru AJAX by a server function. There IS a store attached but it's empty (as far as I can tell) so I've been unsuccessful trying with: .store.fetchItemByIdentity - always returns nothing.

ta.store.fetchItemByIdentity({
    identity: ta.getValue(),
    onItem: function(item, request){
        console.log(item),
        console.log(request)
    }
})

我希望日志显示项目和请求对象，但它们都是未定义的。
ta.getValue（）按预期获取所选值。

I expect the log to show item- and request-object, but they're both undefined. ta.getValue() get's the selected value as expected.

实现最佳方式是什么这个？

What's the best way to achieve this?

推荐答案

看看我的答案 onChange不足以触发Dojo Combobox的查询，还有一个 jsFiddle 。我添加了您需要的代码：

Have a look at my answer to onChange not sufficient to trigger query from Dojo Combobox and also to jsFiddle mentioned there. I added code specific for your needs there:

select.dropDown.on("itemClick", function(dijit, event) {
    var node = dijit.domNode;
    console.log(domAttr.get(node, "data-info-attribute"));
    // or
    console.log(node.dataset.infoAttribute);
});

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