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Three-level linkage and Ajax simulation requests in urban areas

Source: Internet
Author: User
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<! DOCTYPE html>

<meta charset= "Utf-8" >
<title></title>
<script type= "Text/javascript" src= "Jquery/jquery-1.11.0.js" ></script>
<script type= "Text/javascript" >
$ (). Ready (function () {

Click Load Province Name
$ ("#btn"). Click (function () {
Alert ("Asasassa");
Clear the option of the existing city before changing the province
$ ("[name = ' Sheng ']"). HTML ("<option>== province ==</option>");
Clear the option of the existing city before changing the province
$ ("[name = ' Shi ']"). HTML ("<option>== City ==</option>");
Clear the existing county and county before changing the province
$ ("[name = ' qu ']"). HTML ("<option>== counties ==</option>");
Request data
$.get ("./json/sheng.json",
function (data) {
$ (data). Each (function (i) {
Load option dynamically and set the data
var Opsheng = "<option></option>";
$ ("[name= ' Sheng ']"). Append (Opsheng);
$ ("[name= ' Sheng '] option"). EQ (i+1). Text (data[i].name);
$ ("[name= ' Sheng '] option"). EQ (i+1). Val (Data[i]. Proid);
});

}),
"JSON"
});
How the provinces perform when they change
$ ("[name= ' Sheng ']"). Bind ("Change", function () {
Clear the option of the existing city before changing the province
$ ("[name = ' Shi ']"). HTML ("<option>== City ==</option>");
Clear the existing county and county before changing the province
$ ("[name = ' qu ']"). HTML ("<option>== counties ==</option>");
Get the name of the province being clicked
var Shengid = $ ("[name = ' Sheng '] option:selected"). Val ();
Request data
$.get ("./json/shi.json",
function (data) {
As the next label of option
var index = 1;
$ (data). Each (function (i) {
if (Shengid = = Data[i]. Proid) {
Load option dynamically and set the data
var Opshi = "<option></option>";
$ ("[Name= ' Shi ']"). Append (Opshi);
$ ("[Name= ' shi '] option"). EQ (index). text (data[i].name);
$ ("[Name= ' shi '] option"). EQ (Index). val (Data[i]. Cityid);
index++;
}
});
},
"JSON"
);
});
Methods of implementation when cities change
$ ("[Name= ' Shi ']"). Bind ("Change", function () {
Get the selected city name ID
var shiid = $ ("[name = ' Shi '] option:selected"). Val ();
Clear the original option before the city changes
$ ("[name = ' qu ']"). HTML ("<option>== counties ==</option>");
Request data
$.get ("./json/qu.json",
function (data) {
Subscript Number as option
var index = 1;
$ (data). Each (function (i) {

if (shiid = = Data[i]. Cityid) {
To add an option to an additional zone
var Opshi = "<option></option>";
$ ("[name= ' qu ']"). Append (Opshi);
$ ("[name= ' qu '] option"). EQ (index). Text (Data[i]. Disname);
$ ("[name= ' qu '] option"). EQ (Index). val (Data[i]. Cityid);
index++;
}
});
},
"JSON"
);
});

});
</script>

<body>
<input type= "button" Name= "btn" id= "btn" value= "Import province name"/>
<br>

<select name= "Sheng" style= "width:150px;height:200px;" multiple= "multiple" >
<!--<option>== Province ==</option>-->
</select>

<select name= "Shi" style= "width:150px;height:200px; multiple=" multiple ">
<!--<option>== City ==</option>-->
</select>

<select name= "Qu" style= "width:150px;height:200px;" multiple= "multiple" >
<!--<option>== counties ==</option>-->
</select>
</body>



This article is from the "10917283" blog, please be sure to keep this source http://10927283.blog.51cto.com/10917283/1899586

Three-level linkage and Ajax simulation requests in urban areas

This article is an English version of an article which is originally in the Chinese language on aliyun.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to info-contact@alibabacloud.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

Related Keywords:
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