Question

WebMethod return a value and then process data in vb.net

Asked by: rowmark

Hello Experts

I have a Web Service with one WebMethod for which return value is boolean.

It accepts XML file as string and process data. How can I first return status as true and then call the ProcessData method.

What I mean is the application consuming this Web Service shouldn't wait for the whole data to be processed. Instead once it calls the method it should return true and then process data.

As the processing of data takes time I need to return true first and then process the data.

Please help.

[webmethod]
Public function receiveData(ByVal xmlstr as string) as boolean
dim status as boolean=false
try
  if xmlstr<>"" then
      ProcessData(xmlstr)
     status=true
  end if
 
catch
 
end try
return status
end function
                                  
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Asked On
2009-08-23 at 08:45:59ID24674744
Tags

Web Services

Topics

Web Services

,

.NET Framework 3.x versions

,

Web Services and WCF

Participating Experts
3
Points
500
Comments
4

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Answers

 

by: TheLearnedOnePosted on 2009-08-24 at 07:15:36ID: 25168489

You couldn't do that in a single thread, since those are all synchronous calls.  You might be able to spin up another thread to call the ProcessData.  The only problem would be is if you needed notification of completed process.

 

by: crazymanPosted on 2009-08-24 at 07:39:00ID: 25168740

How can you know if the result is true before you process the data, or does it always return true ?

You could write the request to a database, then have a windows service poll this data and process it.

 

by: apeterPosted on 2009-08-25 at 05:37:39ID: 25176831

20120131-EE-VQP-002

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