我想通过从列表中选择值来更改 div 的宽度和高度
<select id="selectSize">
<option selected>Please Select</option>
<option>45x40</option>
<option>50x20</option>
<option>50x30</option>
<option>63x30</option>
<option>75x40</option>
</select>
<div id="sizeBox"></div>
我想通过从列表中选择值来更改 div 的宽度和高度
<select id="selectSize">
<option selected>Please Select</option>
<option>45x40</option>
<option>50x20</option>
<option>50x30</option>
<option>63x30</option>
<option>75x40</option>
</select>
<div id="sizeBox"></div>
试试我的回答:
$(function () {
$(document).on("change", "#sizeBoxSelect", function () {
var $this = $('select#sizeBoxSelect option:selected'),
iWidth = parseInt($this.val().split(",")[0]),
iHeight = parseInt($this.val().split(",")[1]);
$("#sizeBox").width(iWidth).height(iHeight);
});
});
试试这个
$(function(){
$('#sizeSel').on('change',function(){
var dim = $(this).val();
var wh= dim.split("x");
$('#sizeBox').css({'width':wh[0]+'px','height':wh[1]+'px'});
});
});
HTML
<select onchange="Change()" id="sizeSel">
<option selected>Please Select</option>
<option>HP to decide</option>
<option value="45x40">45x40</option>
<option value="50x20">50x20</option>
<option value="50x30">50x30</option>
<option value="63x30">63x30</option>
<option value="75x40">75x40</option>
</select>
<div style="border:1px solid red;" id="sizeBox"></div>
查询
function Change()
{
var boxsize = $('#sizeSel').val();
var strs = boxsize.split("x");
$('#sizeBox').width(strs[0]);
$('#sizeBox').height(strs[1]);
}
在这里,您有一种使用 Jquery 的方法。
HTML:
<select id="selectBox">
<option selected>Please Select</option>
<option>HP to decide</option>
<option>45x40</option>
<option>50x20</option>
<option>50x30</option>
<option>63x30</option>
<option>75x40</option>
</select>
<div id="sizeBox"></div>
JAVASCRIPT:
$('#selectBox').change(function() {
$("option:selected", this).each(function () {
var value = $(this).val();
var height = value.split('x')[0];
var width = value.split('x')[1];
$('#sizeBox').css("width", width);
$('#sizeBox').css("height", height);
});
});
您只需要在列表框元素上调用change()事件并更改目标元素的长度和宽度。这是工作示例
JS
$('#sizeBox').on('change', function () {
// alert( $(this).html());
var $this = $('Select option:selected');
var length = $this.attr("lt");
var height = $this.attr("ht");
alert(length + ":" + height);
$('#tarDiv').width(height);
$('#tarDiv').height(length);
});
HTML
<select id="sizeBox">
<option selected>Please Select</option>
<option>HP to decide</option>
<option lt="45" ht="40">45x40</option>
<option lt="50" ht="20">50x20</option>
<option lt="50" ht="30">50x30</option>
<option lt="63" ht="30">63x30</option>
<option lt="75" ht="40">75x40</option>
</select>
<div id="tarDiv" class="colorME" style="background-color:green;padding-top:50px;width:100px;height:100px;overflow:auto;">Change ME!!!</div>