Why do we user one way and two way in webservice

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Hi All

I just want to know why to use one way and two way in webService.

I just want a sample too.

Regards
Froxy

Posted 10-Nov-11 1:11am

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RaisKazi · Accepted Answer · 2011-11-10T01:38:00

One Way

When you want your Client application should not wait untill your Web Service completes the execution then you may use "One Way" by defining OneWay=true property of SoapDocumentMethod Attribute.

Have a look at below link
http://msdn.microsoft.com/en-us/library/system.web.services.protocols.soapdocumentmethodattribute.oneway.aspx

In this return type of your WebMethod has to be void.

Two Way
This term can be taken in two ways.

1) Web Service returning something back to client.
http://netpl.blogspot.com/2009/07/aspnet-webservices-two-way-response-and.html

2) Service is calling back Client.
For Traditional Web Service you may refer below link.
Duplex Web Services

For WCF Duplex refer this link.
http://geekswithblogs.net/claeyskurt/archive/2007/09/05/115169.aspx