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javascript - 表单 - 如何提交并转到网址?

转载 作者:行者123 更新时间:2023-11-28 21:03:54 24 4
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我有下面的表格,它非常适合我对依赖字段的需求。我想做的是,当有人选择其中一个子类别(即:床上用品)时,他们将被转移到一个网址(例如:www.beddings.com)。但这远远超出了我的理解范围!

如有任何帮助,我们将不胜感激!

这里是这种形式的演示:http://www.tamilcodes.com/demopages/jsdropdownlist.html

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<script language="javascript" type="text/javascript">
function dropdownlist(listindex)
{

document.formname.subcategory.options.length = 0;
switch (listindex)
{

case "Home Ware" :
document.formname.subcategory.options[0]=new Option("Select Sub-Category","");
document.formname.subcategory.options[1]=new Option("Air-Conditioners/Coolers","Air- Conditioners/Coolers");
document.formname.subcategory.options[2]=new Option("Audio/Video","Audio/Video");
document.formname.subcategory.options[3]=new Option("Beddings","Beddings");
document.formname.subcategory.options[4]=new Option("Camera","Camera");
document.formname.subcategory.options[5]=new Option("Cell Phones","Cell Phones");

break;

case "Education" :
document.formname.subcategory.options[0]=new Option("Select Sub-Category","");
document.formname.subcategory.options[1]=new Option("Colleges","Colleges");
document.formname.subcategory.options[2]=new Option("Institutes","Institutes");
document.formname.subcategory.options[3]=new Option("Schools","Schools");
document.formname.subcategory.options[4]=new Option("Tuitions","Tuitions");
document.formname.subcategory.options[5]=new Option("Universities","Universities");

break;

case "Books" :
document.formname.subcategory.options[0]=new Option("Select Sub-Category","");
document.formname.subcategory.options[1]=new Option("College Books","College Books");
document.formname.subcategory.options[2]=new Option("Engineering","Engineering");
document.formname.subcategory.options[3]=new Option("Magazines","Magazines");
document.formname.subcategory.options[4]=new Option("Medicine","Medicine");
document.formname.subcategory.options[5]=new Option("References","References");

break;

}
return true;
}
</script>
</head>
<title>Dynamic Drop Down List</title>
<body>

<form id="formname" name="formname" method="post" action="submitform.asp" >
<table width="50%" border="0" cellspacing="0" cellpadding="5">
<tr>
<td width="41%" align="right" valign="middle">Category :</td>
<td width="59%" align="left" valign="middle"><select name="category" id="category" onchange="javascript: dropdownlist(this.options[this.selectedIndex].value);">
<option value="">Select Category</option>
<option value="Home Ware">Home Ware</option>
<option value="Education">Education</option>
<option value="Books">Books</option>
</select></td>
</tr>
<tr>
<td align="right" valign="middle">Sub Category :
</td>
<td align="left" valign="middle"><script type="text/javascript" language="JavaScript">
document.write('<select name="subcategory"><option value="">Select Sub- Category</option> </select>')
</script>
<noscript><select name="subcategory" id="subcategory" >
<option value="">Select Sub-Category</option>
</select>
</noscript></td>
</tr>
</table>

</form>


</body>
</html>

最佳答案

您可以使用 javascript 进行如下操作

window.location = url

您需要检查子类别并相应地设置 url。

给你

function redirect_subCategory() 
{
var e = document.getElementById("subcategory"); //set subcategory as id of select box
var subcategory = e.options[e.selectedIndex].value;

switch (subcategory)
{

case "Colleges" :
windows.location = "www.colleges.com";

break;

case "Institutes" :
windows.location = "www.insitutes.com";

break;

case "Schools" :
windows.location = "www.schools.com";

break;

case "Tuitions" :
windows.location = "www.tuitions.com";

break;

case "Universities" :
windows.location = "www.universities.com";

break;

}
}

创建一个函数并将上述代码保留在其中。在选择框的 onchange 事件上调用该函数 -

<select id="subcategory" onchange='redirect_subCategory()'>

关于javascript - 表单 - 如何提交并转到网址?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/10326982/

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