Refresh Page If Database Changes Using XMLHttpRequest
Aug 5, 2005
I'm making a somewhat unusual web page that will feature a showroom (this showroom will have images/video/qtvr/etc). If a pre-determined user comes to the page and views the showroom, I am essentially controlling it on my end by changing the database. The page needs to check the database every 2 seconds and refresh if the database value is different from what it currently is. The issue with using iframes or a meta refresh is that if a video is loaded, it will never play, because the page will always be refreshing.
So, that is where the XMLHttpRequest function comes in. I believe I have all of the basic code completed, but it of course does not work and I am probably missing something really simple or perhaps my approach is off. Code:
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Apr 15, 2010
So my problem is that i can't send form data in FF without page refresh (though in IE7-8 everything works smoothly).
My code fragments:
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Oct 4, 2011
we are developing an web application. In this user has an option to comment or mark a video. After user commented or marked it has to shown automatically on the page with out refreshing the page.
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Jun 7, 2011
I have been trying to figure out how to go about making a table of comments auto-refresh when someone inserts from a comment form without refreshing the whole page.I've tried looking into AJAX for this, but everything I have looked at, in terms of tutorials, just flies right over my head, and I can't really make much sense of it.
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Oct 16, 2010
I have got a DIV that I need to refresh, its content consists of an image that will change on the insertion of a row to the SQL Database, however, when I use a refresh on my div it does refresh but does not change the image...
My refresh code is ajax:
And my PHP code contains the MYSQL that has a mysql_num_rows, so that PHP can see if there are rows or not.
I would like my page not to redirect or refresh on my div change.. So I would just like my div to refresh.
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Aug 11, 2009
How to refresh DIV , without refresh entire page,Am having four DIV ,
DIV1,DIV2,DIV3,DIV4
I want to refresh only DIV! without affecting the DIV3,DIV4 ,
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Aug 8, 2008
I am attempting to create an Access database connection from within an HTML page. I am using Javascript to make the connection and then test a basic UPDATE statement.
The following code is throwing back an error 'UPDATE statment syntax incorrect'
Code:
I thought the syntax was correct, but maybe it is something else?
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Mar 29, 2009
I am using Xmlhttprequest object and checking for the onreadystate event and calling a function(), this is called for every 1 sec using the setTimeout method, this works perfectly but using this does not allow to navigate to the next page by clicking the next button in the page.
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Jan 28, 2010
I am currently learning AJAX, and I want to write an simple example program (it is only for practice, it has no real meaning).
The program sends request to to PHP and gets response from it, then it should write the response using message box, all should happen on page load. I wrote the following code:
function init(){
myRequst = new XMLHttpRequest();
var url = "http://localhost/dummy.php";
myRequst.open("GET",url,false);
[Code]....
I don't see any message box when the page loads. When using it after the page loaded with other events (not onLoad), it works and I see the message box with the response.
How can I get the data on page load using XMLHttpRequest?
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Aug 3, 2005
I am trying to use xmlhttprequest to make my aspx page more interactive.
its a page with a slideshow where the user can rate the pic, send a comment of this pics and other stuff...
when the user rate or comment a pic, the server side script works properly, but when im going to work with the response (xmlhttprequestObject.responseXML), it all screw up...
this is some part of my scripts: Code:
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Feb 3, 2010
I got a javascript function to pull contents from a php page, let's call this page B to the actual page, let's call this page A.
As I know when a page gets loaded the javascript on that page won't execute, am I right?
Now I need the javascript code on that page B to get executed. Is that somehow possible?
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Jul 23, 2005
Opening IE displays the following code fine.
When I open a new window the code no longer works. All the HTML is
overwritten with the first document.write statement.
This code pulls XML from a web site then parses it into a dynamically
created table built with javascript. The write table is not working
correctly, other methods work fine. This code also locks up Fire Fox to
where it doesn't stop loading the page. Code:
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Feb 1, 2011
[Code]...
when i load page it does nothing only blank page, may have code in wrong place but not sure so can someone show me a working example so i can find out what i'm doing wrong also i would like the part of page to refresh evey 120 seconds is this possibe with jquery?
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Aug 22, 2011
Our company own a lot of domains and want to put a short page of copy on each address along with keywords before redirecting the user to our main site. I have been able to get the page to load the main site after the desired time using this code in the head...
<META HTTP-EQUIV="refresh" CONTENT="40;URL=http://webaddress.com/">
That works perfectly, I am now trying to display a countdown timer from 40 seconds down to 0, and on 0 redirect the user. Saying something like "You will be redirected in XX seconds". Is there anyway of doing this? I've been searching google for the answers with no luck and can only seem to find timers that countdown to a set date.
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Oct 29, 2011
the page url is
Code:
`http://example.com/index.php?main_page=index&Path=<?php echo $_GET['Path'];?>`
there are some contents on the page:
[code]...
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Feb 8, 2010
I need to refresh one div in my HTML page and not the entire page, is this possible?
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Nov 30, 2011
I have a simple html form where a user logs in. On my PHP page I have my connection string and everything to verify if the login and password exist. If so it proceeds to another page.I read about some functions jQuery.post(),jQuery.get(),jQuery.ajax()but am having trouble using it. This is the code I have so far:My HTML page:
<html>
<head>
<title>Login</title>
[code]....
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Mar 16, 2009
is it possible to connect an html page to data base through javascript..?
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Jun 21, 2009
I am having some issues running some ads coming from a database not showing up on my page it doesnt show anything at all im not sure what i have done wrong?i cud have it statically written in but it would be easier if i did it that way of getting the urls stored in a database.this is my php code along with javascript code inside my php code.
PHP Code:
include("dbconnect.php");
$rQ="SELECT * FROM banner";
[code]...
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Nov 14, 2011
Find a solution to this... I am trying to get a page to load into a div, but only if a database variable is equal to 1, if the variable is not equal to 1, it should check back every 5 seconds. Once the page is loaded into the div, it should stop checking. Also when the page that was loaded into the div is closed, everything starts over again.
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Jul 23, 2005
I'm building a suite of free php applications to create virtual worlds.
My problem is i can't get my file to refresh. Can this be done with
javascript? I would like to have the display and the form be on a single
page..unless this can be done with frames.
The sample application contains 2 files:
a)The php file (with input controls and the embedded world)
b)The embedded world (text file)
1. The php file accepts input from the user
2. The user hits Submit which creates the text file for the world
this works - the text file is created with changes. next the page
should refresh itself and show the world based on the user's input.
Right now steps 1 and 2 work perfectly in the sense that the text file
for the world does get created. however the page will still show the
older version of the text file.
To get the page to refresh properly, i have to hit the reload button on
the browser...this gives me the "this page can't be refreshed without
sending..." alert...but it then refreshes and shows the changes.
the code:
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May 23, 2007
<img src=...Onlick = "if (!(this.temp>=640)) { this.temp=640; } if
(this.width>=640) { xyz=this.width; this.width=this.temp;
this.temp=xyz; }">
Inline script....
I got the above code from internet and it is used to change the width
of the IMG element. This not only "changes" the width but also
"refreshes" the page so that I can see the change in width.
Function script...
I moved above inline script to a JS file and it is as follows. Now,
'width' of the IMG element seem to change but display does not get
refreshed; and if I add a window.alert( ); then I see screen
refreshing Code:
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Apr 26, 2006
Page1 is the main page and when I click on a link on page a pop up window opens (page2).What I would like to happen is when page2 is closed I would like page1 to be refreshed.
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May 21, 2011
I have three divs with a feed:
<div>feed nr.1</div>
<div>feed nr.2</div>
<div>feed nr.3</div>
I would like to hide div 2 and three and show only div 1.Than one page refresh I would like to hide div 1 and than show div 2 etc. In this order. So every page refresh would show a different div in the order of 1,2,3 etc.
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Jan 11, 2011
Can i use single jquery and html to do some database manipulation i.e. database transaction.
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Aug 10, 2010
I want to be able to grab words from a database with javascript. How do I do that?
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