I'm trying to implement an auction website and I search in web the Ajax Push is the best way where I can use! So, I'm finding some samples in web to learn how to implement Ajax Push (comet) in client and server. By the way, I find some samples in ASP.Net Webforms, but no in MVC version. I'd like to find a demo, sample, anything ... that use MVC
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I am looking for ASP.Net MVC implementation for reverse ajax comet/polling. Can anyone provide some good link or tutorial
View 2 RepliesI am looking for a free implementation for Comet or Push. Here is an example of chat done by comet:http://www.phpchatsoftware.com/phpbb/I have my own server.Is there any thing like this?P.S. I am using asp.NET, on server and jQuery on client.Is there anything new? or maybe this is the last technological free open source achievement:http://www.codeproject.com/KB/aspnet/CometAsync.aspx ?
View 4 RepliesThinks at a backgammon online multiplayer game with over 100, or even 1000 online users. The game communication is done using Ajax + 3 seconds Comet connection interval + ASP.NET technology. Is this a real scenario ?
Didn't so many Comet open connections block the server resulting in big latency ?
have here a (internal intranet) site where users can preserve places for the lunch and pause... :)Now, meanwhile the users count grows more and more and the ajax site that speeks with a webservice for the calculations und checks geting slower and slower... user 900+The site checks every 5 seconds for the actual state and uses groups for the users.Ok, now i have researched on the web, and found the comet/reverse ajax aproach that the service can push the clients with events.But i have not found any good asp.net tutorial with visual studio (2010) how i can use the asp.net standard controls and vs design mode.Is there a framework for that stuff?
View 3 RepliesI implemented a chat using the COMET "way" described in this article: http://www.codeproject.com/KB/aspnet/CometAsync.aspx
In this example, the client connects for 5 seconds every time. I wanted to hold the client longer, for about 10 minutes.
My problem is - how to detect if the client disconnected during those 10 minutes? I tried using Response.IsClientConnected but it returns true even if I close the client. There must by some inidicator since the socket gets disconnected if I close the client.
using below code, I enable the Ajax waiting logo.
[Code]....
Additionally, I trigger it using :
[Code]....
But whenever logo appears, it push downs all controls.How can I show the logo in front of all controls,
What is the correct way (or best) way to implement Comet, HTTP Push, or Reverse AJAX?What .NET implementations would you recommend?
View 1 Repliesuse a textbox and the AutoCompleteExtender to search for the customer. For example, on the PurchaseOrder form, I have a textbox with a Customer field, and when I type in the name of the customer, the AutoCompleteExtender shows the possible matches.Now, it takes a few seconds to show the list of values, even with setting the correct values on the extender, and if the user types in the name of the company, e.g. Contoso, and leaves the textbox, there might be 2 Contoso's in the database. The AutoCompleteExtender does not continue when the user leaves the textbox, thus the CustomerId is not determined yet.
View 1 RepliesI am new and want to work on MVC. I have Nerddinner and Music store. Is there any other sample application for MVC2 with AJAX implementation?
View 3 Repliesi have a template page which open from several page and load the data from several tables in data base.want to know what is the best way to implement this tepmlate page?i want some nice control to implement this page.i wrote its code but want use some graphical controls like rad window to implement it. i use rad window but it doesnt enough to me.
View 1 Repliesthis has probably been discussed before but perhaps not enough as I haven't been able to find any literature on this method (parts are documented, but not as a whole I guess)Anyways, you start with a web service, and you call that web service client side with ASP.NET AJAX javascript. Once you get a reply, you can call a artial postback using __doPostback(a, b) and "a" is the control id of an updatepanel in your page and "b" can be an indicator for which web service you are using or your resulting data or both. Lastly you add a check for "a" and "b" like this:
[Code]....
Now you can execute any code behind function when you receive a response, and because it's async anything short of leaving the page and it will still postback when you get a response.For example, I have a site which display data from a database in a gridview and uses a client side web service to get the time last updated for a database, call the web service client side every second, then, when an update is detected, call a partial postback, alert the user, and update the gridview.Though this really is a hack, so I'm not sure if there any problems with this approach, if there's a simpler and better way to go about it (I'm all ears).
I've been implementing Seadragon (as part of the ACT), but have recently found some users complaining of slow speeds whilst using it - I thought this odd because the whole idea of Seadragon and DeepZoom is streaming images as they're required rather than loading one huge image in one request.
I've done a bit of testing (using Firebug) on both our web pages and the ASP.net ACT Sample website Seadragon control, and have found that when the control is opened on screen, the browser decides to load all the tile images at once (even the tiles which aren't at the default zoom level).
Has anyone else experienced this and does anyone know why it does it/if there's a fix? The fact it happens on the ACT sample site has left me tearing my hair out because I know that it's not just my implementation of the control that's causing problems.
This is Ravi and like to learn AJAX concepts,and wrote small application ,but getting response along with html page .
<table><?xml version="1.0" encoding="utf-8"?><CategoryList><Category ID="01"><MainCategory>XML</MainCategory><Description>This is a list my XML articles.</Description><Active>true</Active></Category></CategoryList></table>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> xmlns="http://www.w3.org/1999/xhtml">
<head><title>
[code]...
Do all comet style applications require a loop somewhere in the application on the serverside to detect updates/changes? how the logic behind a loopless comet style application would work?
View 3 RepliesI'm making an application with server sided variables that change every second. Every second those new variable need to be shown at all the clients that have the webpage open. Now most people told me to go with comet because I need to push/pull the data every second, now I've got a few questions: What would be a better solution looking at the fact that I need the new data EVERY SECOND, pulling from the client or pushing with the server?
Also the item ID's that are on the server side (with the variable's that ID got) can change and when the client refreshes the page he needs to get the oldest (and living) ID's. This would mean that my jquery/javascript on the client side must know which ID's he got on the page, what is best way to do this? Last thing is that I can't find a good (not to expensive) comet library/api for asp.net (C#). Anyone ever used a comet library with good results? We're looking at a site that should be able to have 2000 comet connections at every moment.
I have a response object which I want to convert to Json, but somehow I can't, propably beacuse of I cannot the framework too well. I'm trying to convert a anonymous object to json but somehow it doesn't go so well. I would preferably do it in JSON than just make a text/plain result. In my controller: ViewData["json"] = new { Ok = false }; In my view: <%: ViewData["json"] %>
In my js-code (ajax-callback) I get back the following: { Ok = False } Which ain't what I am excepting. I want the { ok : false } or else js doesn't recognize the property in the object as a boolean. Or are there some better way to push out json-data? EDIT I did a method in my controller with a JsonResult instead of Actionresult.
var obj = new
{
Ok = false,
Message = ""
};
return Json(obj);
And that's the object I'm pushing out. And like this in js: {"Ok":true,"Message":""} C# 4.0 and Javascript goes along so well
I want to implement push notification for wp7 so
View 2 RepliesI'm transforming lotus note application to ASP.NET.In lotus note, we can pass the application(data) from staff to his/her manager for approval.The staff can also check status of his/her data whether the manager is opening it, approved it or not.This process can be done in real time. I mean on the staff screen he/she will see status is changing from data sent --> manager is opening --> manager accepted or manager rejected it.In the same time, if other staffs try to track this application(data) they will see the same screen with the first staff.ow, in asp.net, i'm thinking of sending data from staff to manager directly. I don't want manager's web browser need to do polling for every xx millisecond. I'm not quite too sure it can be done or not in asp.net because i'm not the WEB guy.After doing a research for a while, i found that comet may help me on that but it seems pretty hard. And I don't know it is suitable for my problem or not or someone may guide me a better idea on this.
View 1 RepliesI would like to create an API for my website to send and receive data.
For example I need my customers to upload products, single or multiple items. Product feeds can be send daily, weekly or monthly.
Product Name:
Product Color:
Product Weight:
Product Images:
Also I need functionality to send this data to another server. And it should be user friendly.
where to start, what technology to use to make it simple and sufficient.
I have background in Asp.Net, C#. It would be great to see an example how to approach it.
How to implement push technology in asp.net ...
View 1 RepliesI have two webservers in a cluster serving a web application. Using MS Web Deploy to push a new version of the application to one server, and then again to synchronize the files to the other server in the cluster. It seems to be the most ordinary thing to do. But wouldn't there be a problemm, when one server is deployed with the new version, and the other is not yet finished. Will it not cause troubles, when a page loaded with the new version makes a webservice request and the balancer sends the request to the server with the old version?
What's the best way to avoid this? I thought about scripting a drainstop of the server, that we deploy to, and make sure only one server is running at a time. But I can't find anyone else, who seems to have written about such a solution. And guess that it doesn't scale very well too. Another solution could be to shut down all servers when updating. But that doesn't seems very clever.
I'm developing chat application. I use flash as front end and asp.net back-end. My question is: can my asp.net web app send data to flash app in browser without post back ?actually it mean asp.net push data to flash client. I don't know much about flash or siverlight, dose flash support to do that ? or other way help me connect direct from server to browser without using post back or Jabber ?
View 4 RepliesI have a web application, where users will see notifications for their new messages, I want to push the notifications to the users who are already logged in.I have seen that I can do it using Server Push of PokeIn, I have tried and understood the simple application using it, but I am not getting the ClientID thing.The ClientId it saves in "OnClientConnected" is a simple integer, so how does it recognizes clients and calls functions on them ?
View 1 RepliesI am doing R & D in Generate multiple Pdf files in SSRS. Yes I have done this but i have some drawback in them. If user can trigger this process and they can continue their work in application. Acutally I need to do it when generating Pdf process is compleleted, I have to intimate to the user to this process is getting completed. I heard, there is a way in IIS Server to get the Message automatically from the IIS server. When my Process is getting finiched , i need to show the message to user.even though user who can stay in some other page.
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