Javascript 如果在 jQuery 中选择了选项，则显示 div
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Display div if option is selected in jQuery
提问by Christoph Riesterer
I am trying to display a div if one of 2 options is selected on my page. Here is the select menu:
如果在我的页面上选择了 2 个选项之一，我将尝试显示一个 div。这是选择菜单：
<select id="graph_select">
<option id="pilot_form">Pilot Hours</option>
<option id="client_form">Client Hours</option>
</select>
Here is my first div for the first option:
这是我第一个选项的第一个 div：
<div id="pilot_graph_form" align="center" style="margin:0 auto; display:none;">
<form action="?page=reporter" method="POST" name="graph_form">
<p>From:</p>
<select name="start_date">
<cfloop query="date_worked_menu">
<option>#date_worked_menu.date_worked#</option>
</cfloop>
</select>
<br />
<br />
<p>To:</p>
<select name="end_date">
<cfloop query="date_worked_menu">
<option>#date_worked_menu.date_worked#</option>
</cfloop>
</select>
<br />
<input class="btn btn-success" type="Submit" name="submit_to_graph" value="Submit" id="submit_to_graph">
</form>
</div>
Here is the div for my second option:
这是我的第二个选项的 div：
<div id="client_graph_form" align="center" style="margin:0 auto; display:none;">
<form action="?page=reporter" method="POST" name="graph_form_clients">
<p>From:</p>
<select name="client">
<cfloop query="client_menu">
<option value="#client_menu.id#">#client_menu.name#</option>
</cfloop>
</select>
<input class="btn btn-success" type="Submit" name="submit_to_graph" value="Submit" id="submit_to_graph">
</form>
</div>
And here is my jQuery function I have so far:
这是我到目前为止的 jQuery 函数：
<script type="text/javascript">
$(function() {
$("#graph_select").change(function() {
if($("#pilot_form").is(":selected")) {
$("#pilot_graph_form").css({"display":"block"});
}
else {
$("#pilot_graph_form").css({"display":"none"});
}
if($("#client_form").is(":selected")) {
$("#client_graph_form").css({"display":"block"});
}
else {
$("#client_graph_form").css({"display":"none"});
}
});
});
</script>
回答by Bror
First of all, you should change "id" on your "option" to "value".
首先，您应该将“选项”上的“id”更改为“value”。
Then you can use this:
然后你可以使用这个：
$(function () {
$("#graph_select").change(function() {
var val = $(this).val();
if(val === "pilot_form") {
$("#pilot_graph_form").show();
$("#client_graph_form").hide();
}
else if(val === "client_form") {
$("#client_graph_form").show();
$("#pilot_graph_form").hide();
}
});
});
回答by kei
回答by M Rostami
when changing select box you can fadeIn elements that you want :
更改选择框时，您可以淡入您想要的元素：
$('#graph_select').change(function(){
var divID = $(this).children('option:selected').attr('id');
if(divID == 'pilot_form'){
$('#client_graph_form').fadeOut(1000,function(){
$('#pilot_graph_form').fadeIn(500);
});
}else{
$('#pilot_graph_form').fadeOut(1000,function(){
$('#client_graph_form').fadeIn(500);
});
}
});
Updated
in other way :it will be better if you use same name with div's id name in options :
以其他方式更新：如果您在选项中使用与 div 的 id 名称相同的名称会更好：
<select id="graph_select">
<option class="pilot_graph_form">Pilot Hours</option>
<option class="client_graph_form">Client Hours</option>
</select>
add same class to each <div>
为每个添加相同的类 <div>
<div id="client_graph_form" class="forms"
...
<div id="pilot_graph_form" class="forms"
jQuery :
jQuery ：
$('#graph_select').change(function(){
var divID = $(this).children('option:selected').attr('class');
$('.forms').fadeOut(1000,function(){
$('#'+divID).fadeIn(500);
});
});
回答by Shobhit Sharma
Code is alright, there might be a problem with loading jquery, I'd suggest you to use
代码没问题，加载jquery可能有问题，建议你使用
$(window).load(function(){
//Code
});
