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Ajax实现列表无限加载和二级下拉选项效果
类别:AJAX相关   作者:码皇   来源:互联网   点击:

这篇文章主要为大家详细介绍了Ajax实现列表无限加载和二级下拉选项效果,具有一定的参考价值,感兴趣的小伙伴们可以参考一下

Ajax做列表无限加载和Ajax做二级下拉选项,供大家参考,具体内容如下

    //栏目Ajax做加载public function ajaxlist(){
    //echo "http://www.域名.com/index.php?a=Index&c=Index&m=ajaxlist";
    //echo "<hr>";
    $data = Q('sum');
    $where = array();
    $where['cid'] = 33;
    $rongyuList = M('content')->limit($data,2)->where($where)->select();
    $data['stat'] = 1;
    $data = $rongyuList;
    $this->ajax($data);
    //也可以手动把想要的字段拼接成字符串 /*echo "[";
    foreach($rongyuList as $k){
    echo "{
    "."""."title".""".":".""".$k['title'].""".","."""."description".""".":".""".$k['description'].""".","."""."cid".""".":".""".$k['cid']."""."}
    ".",";
    }
    echo "]";
    */ }

具体页面实现:

    <script type='text/javascript'>/*ajax*/(function(){
    //发送数据 var url = "__WEB__"+"?a=Index&c=Index&m=ajaxlist";
    var oSum = '';
    $('a.ajaxBut').click(function(){
    oSum = $('div.zizhiListContBox>a').size();
    $.post(url,{
    sum:oSum}
    ,function(result){
    console.log(result);
    eval("var info="+result);
    for(var key in info){
    oStr = "<a href='"+"__WEB__"+"?a=Index&c=Index&m=content&mid=1&cid=33&aid="+info[key]['aid']+""+"'><h3 class='f100 f16 ts500'>"+info[key]['title']+"</h3><p>"+info[key]['description']+"</p><span class='b parb'></span></a>";
    $('div.zizhiListContBox').append(oStr);
    }
    ;
    }
    );
    }
    );
    }
    )();
    </script>

Ajax 做二级选项:

    <!-- 示例:HTML --><dl class="pr keshi" > <dt class="pa">科室:</dt> <dd class="pa"> <select name='keshi' class='m_keshi'> <option value='0'>--请选择科室--</option> </select> <select name='zhuanjia' class='m_zhuanjia'> <option>--请选择专家--</option> </select> </dd></dl>

示例控制器:

    //示例控制器/* Ajax请求栏目列表 */public function ajaxlanmu(){
    $lanmuList = M('category')->where('pid=142')->select();
    $this->ajax($lanmuList);
    }
    public function ajaxzhuanjia(){
    $where = array();
    $data = Q('sum');
    $data = $data ? $data : 143;
    $where['cid'] = $data;
    $zhuanjiaList = M('guahao')->where($where)->select();
    $this->ajax($zhuanjiaList);
    }

示例:JS

    <script>(function(){
    var lanmuUrl = "__WEB__"+"?a=Index&c=Index&m=ajaxlanmu";
    var zhuanjiaUrl = "__WEB__"+"?a=Index&c=Index&m=ajaxzhuanjia";
    var oSum = oStr = oStr2 = oVal = oKong = info2 = oCid = '';
    /* lanmu */$.post(lanmuUrl,function(result){
    eval("var info="+result);
    for(var key in info){
    oStr += "<option value='"+info[key]['catname']+"' cid='"+info[key]['cid']+"'>"+info[key]['catname']+"</option>";
    }
    ;
    $('dl.keshi').find('select.m_keshi').append(oStr);
    }
    );
    /* zhuanjia */$('dl.keshi').find('select.m_keshi').change(function(){
    oVal = $(this).find('option:selected').val();
    if(oVal == 0){
    $('dl.zhuanjia').find('select.m_zhuanjia').html("<option>--请选择专家--</option>");
    }
    else{
    oCid = $(this).find('option:selected').attr('cid');
    $.post(zhuanjiaUrl,{
    sum:oCid}
    ,function(result){
    eval("info2="+result);
    oStr2 = '';
    //注意这里要清空第一次请求的数据 for(var key2 in info2){
    oStr2 += "<option value='"+info2[key2]['title']+"'>"+info2[key2]['title']+"</option>";
    }
    ;
    $('dl.zhuanjia').find('select.m_zhuanjia').html(oStr2);
    }
    );
    }
    ;
    }
    );
    }
    )();
    </script>

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持脚本之家。

相关热词搜索: Ajax 无限加载 二级下拉