Make webmethod async

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Hallo evrybody ,

i am trying to make some operations simultaneously at the same time
per Ajax ,to search some data in Database,
but somehow it doesn't work , cause the server is treating each request individually !!

is that anyway possible ?

What I have tried:

File1.js
<pre lang="Javascript"><script>
$.ajax({
                    type: "POST",
                    contentType: "application/json; charset=utf-8",
                    dataType:"json",
                    async: true,
                    cache:false,
                    data: "{myparameters}",
                    url: "myFunct"
                    success: callback

});
</script>

File2.js
<script>
$.ajax({
                    type: "POST",
                    contentType: "application/json; charset=utf-8",
                    dataType:"json",
                    async: true,
                    cache:false,
                    data: "myparameters",
                    url: "myFunct"
                    success: callback

});
</script>

VB

<WebMethod()> Public Shared Function myFunct (par1 as string) as string
//do some code here
end Function

Posted 6-Nov-18 2:46am

Member 12785541

Updated 7-Nov-18 1:39am

v2

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Comments

j snooze 6-Nov-18 17:32pm

wouldn't you just put the async in your method definition?
https://docs.microsoft.com/en-us/dotnet/visual-basic/programming-guide/concepts/async/

Member 12785541 7-Nov-18 4:36am

already try it before , but it didn't help !!

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Richard Deeming · Accepted Answer · 2018-11-07T01:39:00

The most likely issue is that you have session state enabled. Even if your method never touches the session state, if it's enabled for the request handler (the page), all requests to that handler with the same session ID will be serialized.

If possible, turn off session state for the page:

<%@ Page ... EnableSessionState="False" %>

If you need to read data from the session, you might be able to get away with making it read-only:

<%@ Page ... EnableSessionState="ReadOnly" %>

If other parts of your page need to write to the session, then you'll need to move the method to a separate handler, and disable session state for that handler.

If your method needs to write data to the session, then there's nothing you can do.

ASP.NET Session State Overview | Microsoft Docs[^]