Possible To Create Message Log In Client-server Web?
Apr 21, 2009
I posted the same post in PHP section but thought might be related to Javascript too. So here goes:
I want to create a decent log at clients side to show alerts from server.
So, server should be able to see a list of connected clients (registered user) on the website, and select a few of them, type something in textbox, clicks send to all of selected clients, and the message is shown in the log at client's website. Also plays a simple sound file when clients receive new message in the log.
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Apr 13, 2009
Is it somehow possible to setup a backend server to send a message to a client? Or it is a client always have to establish a connection? What I'm trying to code is a simple chat script that sends a message to the client once a member of the chatroom has logged out. The only way that I can make this work is if the client either sends a message (which is a POST call) or when a time delay occurs (I've set a timer to run every 30s after the last GET or POST call). But both of these are basically CLIENT -> SERVER calls. I don't assume that the other way (SERVER -> CLIENT) is possible? no?
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Jul 8, 2009
id like to know how can i create a cookie on the client side as well as to script my server side coding to retrieve the cookie value.
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Nov 23, 2006
How can I get a server value into client event?
Or is there another way around my problem?
I have a ASP page that need to get the server IP
(Request.ServerVariables("LOCAL_ADDR")) to open a new asp page
this is some of my HTML that I want to work. Code:
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Oct 21, 2009
What is the best way to get the client time to the server? Would I user http headers? (I dont know how to do that) or is ajax the best method? I could use ajax to send the unix timestamp to the server everytime a page loads and save the difference between it and the server timestamp as a session variable. sounds sensible?
I dont want to work with timezones but I do want to get the actual time set on the client's computer.
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Jul 22, 2011
I understand that JavaScript resides on a server and is served to the client via the web server & the web browser.Is it possible to run JavaScript programs locally without the web server piece?
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Jul 23, 2005
The only way i can think of doing such a thing is having an active
server page that returns an image, that is generated on the fly. As
long as there is no caching on the client this in theory will allow
the client to perform an action on the server and display an image
generated on the fly as a result of this action without actually
reloading the page, simply by requesting an image.
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Nov 16, 2011
what is the difference between client side JavaScript and server side JavaScript? Client side JavaScript is directly embedded in the HTML code...what about serve side scripting?
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Dec 16, 2011
I have files on the server: .txt, .xml, .config, and "no extension" - all editable with notepad.
User will write some input, it will be added to file in specific place.
I need an ability to change element value in file (in one of them - depends what user choose) (or it even can be some trigger word it-self like CHANGE_ME for not to use attributes)
Create a temporary copy of edited file and create a unique temporary link to it.
I don't know what to start from.... For now I know how to make XHR, but what to do with other extensions?
Have no idea how to save the NEW file (a copy of original file) on server , and create a UNIQUE link ,and delete the file right after it was downloaded.
I can find a specific word in xml file, but how to change it?[code]...
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Jul 23, 2005
I have a few values and variables that I want to post to a server
(without using a SUBMIT button). Is there a way to post data from
within javascript - do sockets or connections have to be open for this
to work?
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Nov 29, 2005
I am developing an ASP.NET (C#) application and need some help. I wish
to call a server-side function (in the code-behind "file.aspx.cs") upon
a user clicking on the "X" to close the browser window. Is there a way
to postback and call a server-side function when this happens? I am
aware of the browser's native "onunload" event, but am not certain that
what I'm looking for is actually possible.
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Mar 29, 2006
I'm new to JavaScript. I have relatively large amounts of text (~200 kB) that I need to transfer to my web application every now and then. Using RAR, I get a 5:1 compression ratio on these files, for example one of 180 kB is compressed to 34kB.
Is there some standard way to decompress files in JavaScript?
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Jun 10, 2009
I'm trying to implement a simple chatting website. For now what the code does is checking every 10 seconds if there are new posts stored in the database (newer than the last check, 10 seconds ago). Is there a more efficient way than doing this with a timer??? for example, is there some kind of event listener attached to the server that would notify the client whenever the db is updated?
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May 27, 2011
I'm doing some jquery and ajax work with C# asp.net MVC on the server.
I have this JS function:
function DeleteListing(receiptItemId){
$.ajax({
url: "DeleteListing",
type: "POST",
[Code].....
What I'm wondering is there ways to return values from DeleteListing on the server to the success function?
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Feb 22, 2010
My login to the site is being processed using ajax, which does a redirect to the members page upon succesfull loggin in.The login feature however can in fact take a while because we need to initialise quite some data when a user logs in (his details, but also his privileges are loaded, his personal menu based on these privileges are being loaded, we are loading shopping cart info, we are initialising personalisation settings, and a whole lot more.It sounds like a big thing, but it isn't, and once logged in, the application is going great. the only thing is that the login proceure can take 3 - 4 seconds, and I would like to be able to show the client the progress of the serverside script:
"Searching your account..."
"Validating your privileges"
"Initialising your personal menu"
blablabla...
To do this, I might just call an ajax call that starts the login procedure, and then issue another ajax call every 1 second or so to update the status based on some session variables I set in the login procedure and that I can serve to the client when th next ajax calls come in, but I would love for this to work a little nicer as in just needing to initialise ONE ajax call which can send back statusupdates from the server...
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Oct 28, 2010
I know that Javascript is client side, but I'd like to know the best way to populate HTML drop downs in real time based on information typed in the other HTML form fields with information found on the server as opposed to the client.For instance if a user wants to select certain files located in a directory on the server, as they type in the pathname supposedly containing the files the drop downs continually refresh themselves with the server files listed in that directory (if it exists, and apache has permissions to see what's inside) as if it was showing client files instead.
What would be nice is if my browser could continually query the server for some of its private information and not have to refresh itself to obtain it, whether that means the server-side would have to continually refresh itself makes no difference to me as long as the client-side doesn't have to. But I guess this is not possible because no matter what you would have to at least refresh the client-side page once?Submitting the form to a CGI or PHP script would not work because I need this functionality to help populate the form BEFORE I send it.I would like to not have to press a button to update the form every time I change the pathname and need to update the drop downs since this would be annoying.
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Jun 13, 2006
i am trying to put some code within my js such that, when the server
"sends it a message" it refreshes the page. now i have the refresh part
of things. the place where i am stuck is, how can my server (tomcat, am
using a java web app) send a very small piece of info to the js which
when it receives it, refreshes the page.
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Oct 12, 2009
I am making a call to a php file which right at this minute has no validation, all validation is been done by the jquery form plugin. the validation (xss prevention soon to be implemented) in the thanks fails I want to stop the processing of the form i.e. stop the return of success.
[Code]...
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May 5, 2010
I'm trying to create a horizontal layout for a client, the problem is that the width isn't predetermined, it changes depending on how many divs there are.
You can see what I mean here: [URL]
I'm thinking that somehow I need to calculate the widths of all of the combined .post divs, then use that total width calculation and set it as the width for the #content div, but I really don't know how.
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Jun 25, 2002
I am creating the following using an array called $validate
<script Language="JavaScript">
function validateForm(theForm) {
if (!validRequired(theForm.form[company_name],"Company Name",true)) return false;
if (!validRequired(theForm.form[contact_name],"Contact Name",true)) return false;
if (!validRequired(theForm.form[phone_number],"Phone Number",true)) return false;
if (!validRequired(theForm.form[address],"Address",true)) return false;
if (!validRequired(theForm.form[city],"City",true)) return false;
if (!validRequired(theForm.form[zip],"Zip",true)) return false;
return true;
}
</script>
Each field in my form is set to: form[field_name]. This is so when they submit I can grab the form array and it has all the fields they submitted. This seems to cause a problem with this javascript. It gives me an error at the first validRequired where form[company_name] is. Does anyone know what the problem could be?
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May 5, 2010
am at a lossi just dont know how to do that
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Jun 29, 2009
I currently have an alert message box appearing which asked the user to visit a website to take a survey. What I would ideally like is a message box appearing which gives them two options in the form of buttons. Yes to take the survey now, which would link to the web page. The second button being cancel which would close the message box, which is normally done with the OK button now.
Any ideas how this can be done?
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Feb 9, 2009
I need to create multiple JavaScript clocks on my site based on the client location (I.e. Los Angeles, Houston, Orlando, etc). Nothing complicated... just text clocks to show the current time. With due credit to this site , I used their code as a starting point.
[Code]...
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May 26, 2009
I am building a client-side and server-side solution and want to use JSON through Ajax in both directions. I have ASP or JavaScript server-side, though Microsoft's support of server side JavaScript seems nil, so I am reluctantly conceeding to use ASP. I'd appreciate suggestions on available solutions to encode/decode JSON on the server-side (ASP or JavaScript). I don't plan to load jQuery server-side so that rules out plug-ins. I'd also like to know what is the latest client-side encode/decode for JSON. Is it built in jQuery or a plug-in? In both server and client, decoding JSON securely is key, so using eval () to decode is out.
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Jun 1, 2009
I am developing a web form using python cgi which has two list boxes. On selecting a value from the listbox1, the list box 2 should get auto populated with appropriate values (which are taken from the DB). I have written a javascript function to get the selected value from the list box1. But I am struck with passing the values from the javascript to the python function written in server side in which I have written the DB related stuffs.
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Jul 20, 2005
I have a Hyperlink within a String like below:
sSql = "SELECT DISTINCT " + "'Action' = '<center><a
href='+char(34)+'ChangeRequest.aspx?ID='+cast(Chan geRequest.ChangeRequest_ID
as nvarchar) +CHAR(34)+'>Open</a></center>',"
I want to invoke a Client side javascript function and pass the value
of the ID. How can I accomplish this such when a user clicks "Open" he
goes to a new window with the same ID.
I tried this but it does not work:
On Server side:
sSql = "SELECT DISTINCT " + "'Action' = '<center><a href= 'javascript:
NewWindow('+cast(ChangeRequest.ChangeRequest_ID as nvarchar)+
CHAR(34)+)'>Open</a></center>',"
On Client side:
function NewWindow(myID)
{
window.open("ChangeRequest.aspx?ID="+myID,"WindowName","width=500,height=600");
}
</script>
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