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Using IFRAME and Ajax without refreshing form submission

Source: Internet
Author: User
Tags php code
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IFRAME implementation Ajax Way form submission

The code is as follows Copy Code

<script type= "Text/javascript" >
function Test (msg) {
Alert (msg);
}
</script>
<body>
<form action= "test.php" enctype= "Multipart/form-data" method= "post" target= ' Hidden_iframe ' >
<input type= "File" id= "file" name= "file"/>
<input type= "Submit" value= "submit"/></form><iframe name= "Hidden_iframe" id= "Hidden_iframe" Display:none; "></iframe>
</body>

test.php Code:

<?php
... code goes here ...
echo "<script type= ' text/javascript ' >parent.test (' some messages ');</script>";
?>

Ajax Submission Form

This gets all the contents of the form and then commits.

Form This parameter is the ID value of the form. Do not know how to direct the form object to pass in, and do not need to use getElementById to get.

Need to build a loading layer

The code is as follows Copy Code
function Ajaxsubmitform (form, resultdivid) {
Form=document.getelementbyid (form);
var elements = form.elements;//Enumeration The form elements
var element;
var i;
var postcontent = "";//Form contents need to submit
for (I=0;i<elements.length;++i) {
var element=elements[i];
if (element.type== "text" | | | element.type== "TEXTAREA" | | element.type== "hidden") {
Postcontent + = encodeURIComponent (element.name) + "=" + encodeURIComponent (element.value) + "&";
}
else if (element.type== "Select-one" | | element.type== "Select-multiple") {
var Options=element.options,j,item;
for (J=0;J&LT;OPTIONS.LENGTH;++J) {
ITEM=OPTIONS[J];
if (item.selected) {
Postcontent + = encodeURIComponent (element.name) + "=" + encodeURIComponent (item.value) + "&";
}
}
else if (element.type== "checkbox" | | element.type== "Radio") {
if (element.checked) {
Postcontent + = encodeURIComponent (element.name) + "=" + encodeURIComponent (element.value) + "&";
}
else if (element.type== "file") {
if (Element.value!= "") {
Postcontent + = encodeURIComponent (element.name) + "=" + encodeURIComponent (element.value) + "&";
}
} else {
Postcontent + = encodeURIComponent (element.name) + "=" + encodeURIComponent (element.value) + "&";
}
}
alert (postcontent);
Ajaxsubmit (Form.action, Form.method, postcontent);
}

function Ajaxsubmit (URL, method, Postcontent, Resultdivid) {
var loadingdiv = document.getElementById (' loading ');

Window.settimeout (function () {
Loadingdiv.innertext = "Loading."
LoadingDiv.style.display = "";
}, 1000);
Code for Mozilla, etc.
if (window. XMLHttpRequest) {
Xmlhttp=new XMLHttpRequest ();
}
Code for IE
else if (window. ActiveXObject) {
Xmlhttp=new ActiveXObject ("Microsoft.XMLHTTP");
}
if (XMLHTTP) {
Xmlhttp.onreadystatechange = function () {
If XMLHTTP shows "loaded"
if (xmlhttp.readystate==4) {
if (Resultdivid) {
document.getElementById (resultdivid). InnerHTML = Xmlhttp.responsetext;
}
else {
var result = document.createelement ("DIV");
Result.style.border= "1px solid #363636";
result.innerhtml = Xmlhttp.responsetext;
Document.body.appendChild (result);
}
loadingdiv.innerhtml = "Submit finnished!";
}
};
if (method.tolowercase () = = "Get") {
Xmlhttp.open ("get", url + "?" + Postcontent, True);
Xmlhttp.send (NULL);
}
else if (method.tolowercase () = = "Post") {
Xmlhttp.open ("POST", url, True);
Xmlhttp.setrequestheader ("Content-type", "application/x-www-form-urlencoded");
Xmlhttp.send (postcontent);
}
} else {
loadingdiv.innerhtml = "Can" t create XMLHttpRequest object, please check your Web browser. ";
}
}

jquery Implementation Code

The code is as follows Copy Code

<script type = "Text/javascript" src = ". /js/jquery.js "></script>
<script type= "Text/javascript" >
function checkcorpid ()//Check if customer number is available
{
if ($.trim ("#txtF_CORPID") [0].value) = "")//txtf_corpid is the customer number input box
{
Alert ("Please enter customer number!");
}
Else
{
$ ("#checkFlag"). HTML ("detecting");//display of prompts
$.ajax ({
Type: "Get",
URL: "Checkcorpid.ashx",
Data: "Id=" +$.trim ($ ("#txtF_CORPID") [0].value),//Submit form, equivalent to Checkcorpid.ashx?id=xxx
Success:function (msg) {$ ("#checkFlag"). HTML (""); alert (msg); Operation after the successful operation! MSG is a backstage pass.
});
}
}
</script>

Background processing code


if (context. request.params["ID"]. ToString ()!= "")
{
Pxt.Logic.SYS.CORP_BASE_INFO Cbil = new Pxt.Logic.SYS.CORP_BASE_INFO ();
BOOL Flag=cbil.checkcorpid (context. request.params["ID"]. ToString ());
if (flag)
{
context. Response.Write ("The customer number is occupied!");
}
Else
{
context. Response.Write ("The customer number is available!");
}
}

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Related Keywords:
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