HTTPRequest Problems Updating 'hidden' Objects?

Nov 23, 2005

I am finding some unusual behavior with techniques I am using to
show/hide/update data without having to refresh the page. I'm quite
sure it's developer ignorance on my part and would be grateful for any
suggestions.

My page has 10 tables with their visibility controlled by the user
making a menu selection. For example, selecting menu_1 calls a
function which displays table_1 by setting table_1's style display:
block and hides tables 2-10 by setting their respective styles to
display: none. Everything in this simple navigational approach works
as expected.

I am also using the HTTPRequest object to update relevant objects on
the page based on user input. The problem I am seeing is when the
HTTPRequest object is used to update DOM objects contained within the
"invisible" tables -- or more accurately within those tables having
their style display:none. I have tried using both the HTTPRequest
object's synchronous and asynchronous approach and am seeing the same
results.

I've tested when all of the tables are "visible" by setting their style
settings to display:block and HTTPRequest calls work as expected.

The other twist in my example is that these HTTPRequest calls are each
making a SQL query and updating a chart object within the table, which
may take about 500ms each to return. My initial impression is that it
looks as if the page is being rendered too fast because any more than
three charts on a page is when the charts start getting misplaced on
the page. Again, everything works fine when all tables are visible.

Is this a known problem with HTTPRequest, or do I need to migrate my
coding techniques to the 21th century?

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JQuery :: Updating / Adding And Deleting Objects Nested In Other Ones?

Aug 9, 2011

I have the following object:
var wDefaults = {
"skin":1,
"pagewidth":"960px",
"c1col":[
{"wid":"w001","pcol":0,"wpos":0,"wclosed":"false","wcollapsed":"true"}
],
"c3col":[
{"wid":"w002","pcol":0,"wpos":0,"wclosed":"false","wcollapsed":"false"},
{"wid":"w003","pcol":0,"wpos":1,"wclosed":"false","wcollapsed":"false"},
{"wid":"w004","pcol":0,"wpos":2,"wclosed":"false","wcollapsed":"false"},
{"wid":"w005","pcol":1,"wpos":0,"wclosed":"false","wcollapsed":"false"},
{"wid":"w006","pcol":1,"wpos":1,"wclosed":"false","wcollapsed":"false"},
{"wid":"w007","pcol":1,"wpos":2,"wclosed":"false","wcollapsed":"false"},
{"wid":"w008","pcol":1,"wpos":3,"wclosed":"false","wcollapsed":"false"},
{"wid":"w009","pcol":2,"wpos":0,"wclosed":"false","wcollapsed":"false"},
{"wid":"w010","pcol":2,"wpos":1,"wclosed":"false","wcollapsed":"false"}, {"wid":"w011","pcol":2,"wpos":2,"wclosed":"false","wcollapsed":"false"}
]}

First, how do I access a single value? I've tried some of the examples I saw on the forum, but nothing happened. The alert did not fire:
alert(wDefaults.c3col[0].wid); //first try
alert(wDefaults.c3col.0.wid); //second try
var obj = wDefaults.c3col[0]; //third try
alert(obj.wid);

The nested objects are the properties for widgets within a portal. After the user moves around the widgets, I need to update the object, putting the widgets in a different order within c3col and updating the values saved in pcol, wpos, wclosed, & wcollapsed. I also may need to add or delete an object, for example, delete wid=w003 and add a new one called w012.

My logic would be:
for each widget on the page
found = false
find the object in c3col where wid == x and update its other values
. set found = true
if found == false then add a new object to c3col with x & its properties
end for
for each object in c3col
if that wid isn't found in the list of widgets on the page, delete it from c3col
end for
sort the objects under c3col by pcol and then wpos

The red parts are the ones I'm unclear about how to do it. My basic questions are:
(1) How do you access a single nested object?
(an object within c3col, find and change its values)
(2) How do you add a new nested object to an existing object?
(add a new object to c3col)
(3) How do you delete an nested object?
(remove an object from c3col)
(4) How do you sort nested objects?
(sort the objects in c3col by pcol and wpos)

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Jan 22, 2010

I have a page that has a a two part div system bioTop (top div) and bioBot(bottom div). The bioBot is hidden (.hide()) and shows with the click of the more text. Also there is clickable text to change the text in the divs from english to spanish and vice versa. The click for the top divs work just fine. The issue presents its self when the english or spanish text is clicked the bottom div does not take the new information or the text int the bottom div does not change. Can a hidden div have new information loaded into it. The page that the action is on is oncalllegal. The jquery for the english and spanish text is.

[Code]...

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Feb 13, 2011

what i want this to do is take the x_cityid and add it to teh hidden field with the id of citiesid (I will do an ajax call before this but my simple javascript is not working)what am i doing wrong?

function addtocitylist() {
var x_cityid = document.getElementById('x_cityid');
var x_areaid = document.getElementById('x_areaid');

[code]....

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Jul 23, 2005

Can anyone tell me the best way to access a hidden object in a form? I could use a hard-coded index to the elements of the form, but it's too easy to add something before the hidden object and mess up the indexing. For example:

The form has a tagid of "myForm"
The hidden object has a tagId of "myHiddenObj"

I can get the form elements by using
var formElements = document.getElementById('myForm').elements

But there doesn't seem to be any way to do this:
document.getElementById('myHiddenObj')

Assuming I have the elements as obtained above, none of these have
worked for me either:

formElements['myHiddenObj']
formElements["myHiddenObj"]
formElements.myHiddenObj

Anyone have an idea?

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Mar 12, 2010

I want to setOffset on items before they are shown. However, as offset() always returns {top:0,left:0} on items with display: none, this doesn't work.

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Dec 20, 2005

I use an HttpRequest in my web application to launch an heavy
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The problem I got is that when the computation took too much time, then
I never get the result. I have to reload the page to get it.

I assume it's because my socket connection has time out, but my event
listener does not seems to get any event. Maybe I miss something:

function xmlhttpChange()
{
// looking fo a xmlhttp "loaded"
for (var i in nodeId2xmlHttp) {
if ((nodeId2xmlHttp[i] != null) && nodeId2xmlHttp[i].readyState ==
4) {
if (nodeId2xmlHttp[i].status==200) {
nodeId2xmlHttp[i] = null;
} else {
alert("Problem retrieving XML data (nodeId: " + i + ")");
nodeId2xmlHttp[i] = null;
}
}
}
}

My question is : how to handle XMLHttpRequest timeout. Any pointers?

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Oct 28, 2005

I've created a page that uses HTTPRequest to include some
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the XML file is changed.

I can call the XML file up in a separate browser window,
where I get the old data, refresh to get the new data, then
when I refresh the first browser, the new data appears on
the page.

I'm thinking this might be some sort of server caching
issue. Has anyone else run into this? Does anyone have a
solution?

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When I click on a field, I put the object position in a variableEnviro["lastfocus"] = $(event.target);I call the action and a block of HTML arrived on the page, I place this text and then after, i want the focus to return to the field and I do this:

$(Enviro["lastfocus"][0]).focus();

But nothing append

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[Code]...

where $counter[0] is the result of the query. How do I access $Link from the httprequest result so I end up with something like this:

[Code]...

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height: 0,
order: "numeric",
orderBy: "",

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After the exception I can run the same request ok, and keep doing so
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What does the "Unknown name" javascript exception mean?

Why does it freeze for 5 minutes?

I can't replicate this on my dev pc, it's only happening in a live
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I have the jquery script linked to on the page and here is the way my script looks to run the tabs:

Code:

I want to add something like style="visibility:hidden;" to the DIV that isn't shown on page load and have it added and removed as necessary when users click on the tabs. So basically I would like the generated code to look like this:

Code:

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Is this even possible? Obviously, the rendering engine in the browser
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Here's the JavaScript/jQuery:
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>

[code]....

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I've not done much in the way of JS, if really anything other than using javascript.com before, so this may be me bieng quite m00bish, but I am having problems with my script on a page.

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I've tried playing with a VAR element, and then using document.write to print the variable name to the screen, but this only writes the value of the variable at the time of page loading, and does not refresh.

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Element X (701.4833374023438) Y (284.41668701171875) W H cont(PM_MENU 499.48333740234375 217.06666564941406 200 47 itc() 501.48333740234375 284.41668701171875 200 13 INITIAL submenu (PM_BC_MENU) 86.58332824707031

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