How To Make Call To Methods Asynchronous.I Have Three Methods Which I Need To Call Asynchronously(call them at same time).

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public void computeABC()
        {
           /*this is dummy code  , computeA(),computeB(),computeC() needs to be called asynchronously  the result of this fuctions will be input to computeResult() */


            objMyClassA = computeA(); //
            objMyClassB = computeB();
            objMyClassC = computeC();

            computeResult(objMyClassA, objMyClassB, objMyClassC);

        }

public MyClassA  computeA ()
{

     /* database call */
}
public MyClassB  computeB ()
{

    /* database call */
}
public MyClassC  computeC ()
{

    /*database call */
}

Posted 24-Feb-15 20:00pm

mahadevkarekar

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mahadevkarekar 25-Feb-15 2:01am

As seen in code i have 3 methods . computeA() ,computeB() ,computeC(). all this 3 methods perform heavy database operations. so i need to call all this 3 method at one time.

Tomas Takac 25-Feb-15 4:52am

Sounds like this is ideal scenario for async-await[^].

sashje- 25-Feb-15 5:17am

Since mentioning ASP.NET as a tag, i suggest you perform this out-of-process of IIS. If the processing takes more that 30 seconds, i guess clients would suffer a timeout.
My suggestion is to start the process from asp.net by pushing the request to a MSMQ queue, have a windows service pick it up, store the result in db, and in ASP.Net have a updatepanel with a timer which checks for the result of the process.

if MSMQ and a windows service is out of the question, i guess you could start a backgroundworkerthread in your global.asax instead, and pickup the result using updatepanel + timer..

If you still need to do this in ASP.NET 3.5, you can set the .aspx page to be Async="true" with an appropriate AsyncTimeout and then create
System.Web.UI.PageAsyncTask objects to do the async work..

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