我想拥有2个菜单列表,您必须从每个列表中选择一个选项,然后单击下一个按钮将您带到另一个页面。
答案 0 :(得分:2)
请注意,我更改了SELECT元素的ID。我这样做是为了更容易在JavaScript中找到特定元素。为了实现这一目标,每个元素都应该有自己独特的ID。
<select id="jumpMenu1">
<option value="0">Choose</option>
<option value="">13</option>
<option value="">14</option>
<option value="">15</option>
<option value="">16</option>
<option value="">16.5</option>
<option value="">17</option>
<option value="">17.5</option>
<option value="">18</option>
<option value="">19.5</option>
<option value="">20</option>
<option value="">21</option>
<option value="">22</option>
<option value="225.html">22.5</option>
<option value="">24</option>
<option value="245.html">24.5</option>
</select>
<select id="jumpMenu2">
<option value="0">Choose</option>
<option value="">11</option>
<option value="">12</option>
<option value="">13</option>
<option value="">16</option>
<option value="">16.5</option>
<option value="">17</option>
<option value="">17.5</option>
<option value="">18</option>
<option value="">19.5</option>
<option value="">20</option>
<option value="">21</option>
<option value="">22</option>
<option value="225.html">22.5</option>
<option value="">24</option>
<option value="245.html">24.5</option>
</select>
<input type="button" value="Next" onclick="goToPage();" />
...以及JavaScript:
function goToPage()
{
var jumpMenu1Value = document.getElementById("jumpMenu1").value;
var jumpMenu2Value = document.getElementById("jumpMenu2").value;
if(jumpMenu1Value !== 0 && jumpMenu2Value !== 0)
{
window.location = "someplace.html?jumpMenu1=" +
jumpMenu1Value + "&jumpMenu2=" +
jumpMenu2Value;
}
}
答案 1 :(得分:0)
您提供的脚本有效,但我想我无法弄清楚如何定位不同的网页而不是“someplace.html”
值让我对如何翻译此网址(http://home.comcast.net/~techjunkee/index.html?jumpMenu1=1&jumpMenu2=5)
感到困惑抱歉是一只鸟脑。我正在努力学习这个。
答案 2 :(得分:0)
您有两种选择:
1)您每次都会重定向到同一页面,但是当页面加载时,您应检查查询字符串中的值,并根据该值显示所需的内容。这是从查询字符串中获取值的方法:
protected void Page_Load(object sender,EventArgs e)
{
double jumpMenu1;
double jumpMenu2;
try{jumpMenu1 = double.Parse(Request.QueryString["jumpMenu1"]);}catch {jumpMenu1 = 0;}
try{jumpMenu2 = double.Parse(Request.QueryString["jumpMenu2"]);}catch {jumpMenu2 = 0;}
}
2)您还可以根据这两个选择值中的值重定向到javascript中的不同页面。
函数goToPage()
{
var jumpMenu1Value = document.getElementById(“jumpMenu1”)。value;
var jumpMenu2Value = document.getElementById(“jumpMenu2”)。value;
if(jumpMenu1Value!== 0&amp;&amp; jumpMenu2Value!== 0)
{
switch (jumpMenu1Value)
{
case 13:
{
switch (jumpMenu1Value)
{
case 11:
{
// the page coresponding to the Rim Size "13" and Tire Size "11"
window.location = "someplace13-11.html";
break;
}
case 12:
{
// the page coresponding to the Rim Size "13" and Tire Size "12"
window.location = "someplace13-12.html";
break;
}
//...
default:
{
// redirect to a default/error page or show an error message
}
}
}
case 14:
{
switch (jumpMenu1Value)
{
case 11:
{
// the page coresponding to the Rim Size "14" and Tire Size "11"
window.location = "someplace14-11.html";
break;
}
case 12:
{
// the page coresponding to the Rim Size "14" and Tire Size "12"
window.location = "someplace14-12.html";
break;
}
//...
default:
{
// redirect to a default/error page or show an error message
}
}
}
//...
default:
{
// redirect to a default/error page or show an error message
}
}
}
else
{
//show an error message, the user has to choose both options!
}
}