Select2下拉列表如何通过AJAX加载结果

Question

我有一个简单的select2框,可以加载下拉菜单.

但是,每次使用AJAX调用的结果打开选择菜单时,重新加载下拉菜单的最佳方法是什么？ajax调用将返回

<option value=1>
<option value=2>

等等

我查看了select2文档中的AJAX示例,但它看起来有点过于复杂,我需要什么.TIA

Answer 1

假设你有html

   <p>
    Hidden field value set in the following format:
    <br />
    <em>'34:Donnie Darko,54:Heat,27:No Country for Old Men'
    </em></p>
<input type='hidden' id="e6" style="width: 500px;" value="34:Donnie Darko,54:Heat,27:No Country for Old Men"  />
<br /> <button id="save">Save</button>
<p>
After it's initialised, the hidden field value will change to:<br />
<em>'34,54,27'</em>
<br />
That is the value sent to the server
</p>?

并为select2 Ajax

function MultiAjaxAutoComplete(element, url) {
    $(element).select2({
        placeholder: "Search for a movie",
        minimumInputLength: 1,
        multiple: true,
        id: function(e) { return e.id+":"+e.title; },
        ajax: {
            url: url,
            dataType: 'json',
            data: function(term, page) {

                return {
                    q: term,
                    page_limit: 10,
                    apikey: "z4vbb4bjmgsb7dy33kvux3ea" //my own apikey
                };
            },
            results: function(data, page) {
                alert(data);
                return {
                    results: data.movies
                };
            }
        },
        formatResult: formatResult,
        formatSelection: formatSelection,
        initSelection: function(element, callback) {
            var data = [];
            $(element.val().split(",")).each(function(i) {
                var item = this.split(':');
                data.push({
                    id: item[0],
                    title: item[1]
                });
            });
            //$(element).val('');
            callback(data);
        }
    });
};

function formatResult(movie) {
    return '<div>' + movie.title + '</div>';
};

function formatSelection(data) {
    return data.title;
};



MultiAjaxAutoComplete('#e6', 'http://api.rottentomatoes.com/api/public/v1.0/movies.json');

$('#save').click(function() {
    alert($('#e6').val());
});

尝试用这个做multiajax调用!参考 - http://jsfiddle.net/JpvDt/112/

Answer 2

请参阅Select2 网页上的加载远程数据示例。

每次打开时，它将使用 ajax 动态加载选择列表中的选项。

$("#e6").select2({
        placeholder: "Search for a movie",
        minimumInputLength: 1,
        ajax: { // instead of writing the function to execute the request we use Select2's convenient helper
            url: "http://api.rottentomatoes.com/api/public/v1.0/movies.json",
            dataType: 'jsonp',
            data: function (term, page) {
                return {
                    q: term, // search term
                    page_limit: 10,
                    apikey: "ju6z9mjyajq2djue3gbvv26t" // please do not use so this example keeps working
                };
            },
            results: function (data, page) { // parse the results into the format expected by Select2.
                // since we are using custom formatting functions we do not need to alter remote JSON data
                return {results: data.movies};
            }
        }
    });