How we can frequently Update data in ASP.NET page?

[piyush_patel1111]

I have made an application in asp.net and retrieve data to dropdownlist. but my application is on network so, one user can update database which is bounded dropdownlistbox. So i want to update database without clicking any button or using timer control. How i can do this. Someone help me. e.g. Like in sharekhan site where prices of shares are frequently changing.

[Christian Graus]

piyush_patel1111 wrote:

without clicking any button or using timer control

If you don't want to respond to an event, or create an event, such as with a timer, then your only other option is prayer. I am sure the site you're speaking of, is using a timer and AJAX to make it's changes

Christian Graus No longer a Microsoft MVP, but still happy to answer your questions.

[eyeseetee]

AJAX is the only way of doing this. there is an example of how a timer control would work on the ajax toolkit page. Basically it shows the time with the seconds updating live. This means that the page is making a partial postback every second. Using this would be the only way of having a live updated system.

[Christian Graus]

but he said he doesn't want to use a timer.....

Christian Graus No longer a Microsoft MVP, but still happy to answer your questions.

[eyeseetee]

Christian Graus wrote:

but he said he doesn't want to use a timer.....

Yes I can read. :^) I mentioned it because I was trying to explain in my arguement that this is the only real valid way of doing it. Sometimes people say they cant use a certain method so that they can get other possible solutions. In this case he will just have to use a method he doesnt really want to use.

[Manas Bhardwaj]

.netman wrote:

AJAX is the only way of doing this.

No. There are other options too, but they are quite complex to implement. Have you ever heard of Comet[^], Push Model etc.

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