我需要使用JSON响应填充下拉菜单的帮助 [英] I need help populating my dropdown with my JSON response

问题描述

我正在从C#网络方法中以这种格式重新获得JSON:

{"d":["ADAMS CITY","BOULDER","ANTON","ARBOLES"]}

我现在有一个asp.net下拉列表.好吧，它呈现为具有#city id的html下拉列表.

我收到有关AJAX请求的成功警报.如何将这些结果填充到我的#city下拉列表中?

尝试过:

 success:
                function (data) {
                var values = eval(data.d);
                var ddl = $("#parkCity");
                $('option', ddl).remove();
                ddl.html(data);
                alert("Cities loaded");
            },

解决方案

在您的success回调内部应该可以做一些事情:

var $select = $("#parkcity");

$.each(data.d, function(i, el) {
    console.log(el);
    $select.append($("<option />", { text: el }));
});

示例: http://jsfiddle.net/z2D8f/

或一次附加全部HTML的替代方法，这可能会更快:

var html = $.map(data.d, function(el) {
    return "<option>" + el + "</option>";
});

$("#parkcity").append(html.join(''));

示例: http://jsfiddle.net/pUhw2/

I'm getting JSON back in this format from my C# webmethod:

{"d":["ADAMS CITY","BOULDER","ANTON","ARBOLES"]}

I now have a asp.net dropdown. Well, it renders as a html dropdown with #city id.

I'm getting a success alert on my AJAX request. How can I populate these results into my #city dropdown?

Tried this:

 success:
                function (data) {
                var values = eval(data.d);
                var ddl = $("#parkCity");
                $('option', ddl).remove();
                ddl.html(data);
                alert("Cities loaded");
            },

解决方案

Here's something that should do fine inside of your success callback:

var $select = $("#parkcity");

$.each(data.d, function(i, el) {
    console.log(el);
    $select.append($("<option />", { text: el }));
});

Example: http://jsfiddle.net/z2D8f/

Or an alternative that appends the HTML all at once, which is probably faster:

var html = $.map(data.d, function(el) {
    return "<option>" + el + "</option>";
});

$("#parkcity").append(html.join(''));

Example: http://jsfiddle.net/pUhw2/

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