ASP.net Pop up Alert without page load

Question

Hi,

In ASP.NET -->

I want to popup an alert window in the case of an event. I don't have a button, i do not load the page at that event. When I searched i got a lot of java script examples but I can't use them as they work either on a button click or on page load. I just want a pop window to come as soon as I capture a particular event. I keep checking for the events every 5 second, as soon as i capture one event, there is a switch case for the actions to follow according to the event captured. For one particular case, i need one pop up "Sorry" along with an OK button. Can someone tell me what to do.

Thanks

Answer 1

Most browsers do not support page-load pop-ups because of pop-up blockers. It's better to use a modal dialog, like jQuery's ThickBox add-on (samples are available in the link). ThickBox allows you to fade out the rest of the page and display a messagebox with an OK button in it. You can even put an IFRAME in it, if you want to display an entire page, which acts as a pop-up window, but remains inside the page, thus avoiding pop-up blockers.

Answer 2

You could use a ModalPopup which is part of the Ajax Control Toolkit. I have used it many times to display messages, as it's much nicer than a javascript alert. If your event is captured in javascript, you can simply display it. If your event is captured in the ASP.NET code-behind, you can either display it via a page refresh, or you can put it into an UpdatePanel and trigger that, which will cause it to appear without your page refreshing.

Answer 3

Hi, am sorry but am very new to asp.net. This is what I need to do..

switch (Presence) {

case YES:
    //Do nothing
    break;


case NO:
    // Pop up a window with text " Sorry " and an OK button

}

I am not going to click on any button before this event, i get this event directly from another system, there is a requirement to check the connection every 5 seconds so i need to check the events every 5 seconds. I can't wait for the page refresh, and am not sure how to use update panel as i don't want to diplay it on my existing page, i want to open a new alert window. Please excuse my ignorance, but can you explain your solution with an example. ( if possible without using java script, ajax etc i have never used them before )

Is there a direct method like 'MessageWindow' present in asp.net ?

Thanks a lot