通过读取数据库+循环的方法做了一个select下拉列表,但始终无法通过js赋予指定值,如何解决?(撒分,不够另补)
通过读取数据库+循环的方法做了一个select下拉列表,但始终无法通过js赋予指定值,怎么解决?(撒分,不够另补)
想了想,这个和js其实不怎么相关,还是php问题。
问题背景:该页面左边是一些记录的列表,右边是很多空框,供填入一些信息,之后保存。然后点击左边记录的其中一项,相关信息就能在右边出现。上述功能我都已经实现了。
问题:右边很多空框中有一项是select下拉列表进行选择哪辆车。我的做法是从数据库中读取carNum(integer类型),以此作为select中option的value,而显示的值是数据库中对应该车辆的licenseNum(车牌号),上述用php循环的方法查询并且实现的。但我用js指定该id的select的值时,该select一点反应没有。我把这个select换成确定的select(即去除php循环,而是在htm中直接设定value和选项名称),则js可以指定该select的值,并显示出该值。
但我希望能循环设置该select,而且js能指定该值(显然,这样的话就可以动态显示了。)
该如何解决呢? 撒分,不够的话回帖或者私信给我,可另补。
直接上代码:
<br /><!---下面是htm直接设定html的select的代码----><br /><select id="showOrder_21" name="truck" class="dropdown" style="margin-left:0px !important; border:1px solid #BABABA !important;"><br /> <option value ="1">QAZ123</option><br /> <option value ="2">WSX234</option><br /> <option value ="3">EDC345</option><br /> <option value ="4">TGB456</option><br /></select></td><br />
下面是采用循环的方式实现的select:
<br /> <select id="showOrder_21" name="truck" class="dropdown" style="margin-left:0px !important; border:1px solid #BABABA !important;"><br /><?php <br />$query = "select * from transport.truck order by carNum";<br />$data = getAll($query);<br />foreach($data as $each)<br />{<br />?><br /><option value="<?php echo $each['carNum']; ?> "><?php echo $each['licNum'];?></option><br /><?php } ?><br /></select></td><br /><br />
下面是我用的js 部分:
<br><script><br /> $(document).ready(function(){<br /> $(".LeftTask").click(function(){<br /> <br /> $(this).css("background","#A8A8A8");<br /> $(this).siblings().css("background","white");<br /> var orderID = $(this).find('input').val();<br /> $.ajax({<br /> type:"get",<br /> url:"main/ajax.php",<div class="clear"> </script>

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