ASP.Net Socket Programming

hello thank u for your prompt reply....but when i add window.EventSource('index.aspx') in my page it gives me error that JavaScript runtime error: Object doesn't support this action
i think it is due to older version of html...is there any solution for this??

For this scenario you have to use push notification...i.e. you need to use feature of HTML5 called EventSource which is useful for pushing notification to html pages


Example :

var source = new EventSource("demo_sse.php");
source.onmessage = function(event) {
    document.getElementById("result").innerHTML += event.data + "<br>";
};

when you careate EventSoruce like as above it will listen to the changes on that page for Asp.net you can also provide web Api or handler as input to EventSource and get refeshed data in onmessage function.

For more detail you can also search on google for EventSoruce