数据源

格式

{
    "results": [
        {
            "id": 1,
            "text": "Option 1",
            "selected": true
        },
        {
            "id": 2,
            "text": "Option 2",
            "disabled": true
        },
        {
            "id": 3,
            "text": "Option 3"
        }
    ],
    "pagination": {
        "more": true
    }
}

Arrays

var data = [
    {
        id: 0,
        text: 'enhancement'
    },
    {
        id: 1,
        text: 'bug'
    },
    {
        id: 2,
        text: 'duplicate'
    },
    {
        id: 3,
        text: 'invalid'
    },
    {
        id: 4,
        text: 'wontfix'
    }
];
$('.js-example-basic-single').select2({
    data: data,
    width: '10%'
});

Ajax

$('.js-data-example-ajax').select2({
    ajax: {
        url: 'https://api.github.com/search/repositories',
        dataType: 'json',
        delay: 250,
        data: function (params) {
            var query = {
                q: params.term,
                page: params.page || 1,
                per_page: 10
            }
            return query;
        },
        processResults: function (data, params) {
            params.page = params.page || 1;
            return {
                results: data.items,
                pagination: {
                    more: (params.page * 10) < data.total_count
                }
            };
        },
        cache: false
    },
    width: '300',
    placeholder: 'Search for a repository',
    minimumInputLength: 1,
    templateResult: function (repo) {
        return repo.full_name || repo.text;
    },
    templateSelection: function (repo) {
        return repo.full_name || repo.text;
    }
});