How to get errors from Web Service

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I wrote a c# Web Service that connects to database, retrieves data into a dataset and returns that dataset to a Stand alone application also written in C#. I can display that data in my application.

My Question is: When the Web service encounters a problem, such as 'unable to get oracle connection' because maybe the database is down...

How do I return the error message from the web service to my application and display it in a Message Box?

Posted 6-Nov-14 11:01am

Silver13

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virang_21 6-Nov-14 17:05pm

Is it a WCF service or asmx web service ?

For WCF service

http://www.codeproject.com/Articles/294609/Uing-FaultContract-to-throw-custom-error-informati

Silver13 6-Nov-14 17:07pm

Asmx.

virang_21 6-Nov-14 17:24pm

There may be a better way to do it but have a look at this article

http://www.developer.com/net/csharp/article.php/3088231/Exception-Handling-in-Web-Services.htm

Sergey Alexandrovich Kryukov 6-Nov-14 17:25pm

It all depends on your Service Contract. (Do you use WCF Service Contracts at all?) You could designed it to deliver some problem diagnostics for some particular cases.
—SA

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DamithSL · Accepted Answer · 2014-11-06T16:59:00

Quote:
Propagating errors back to a client is done by throwing exceptions. A Web service method can do this in the following ways:
- Throw a SoapException exception.
- Throw a SoapHeaderException exception.
- Throw an exception specific to the problem.
- Allow ASP.NET to throw the exception.

Read the documentation and check which way is most suitable for your requirements.

Handling and Throwing Exceptions in XML Web Services[^]
How to: Throw Exceptions from a Web Service Created Using ASP.NET[^]
How to: Handle Exceptions Thrown by a Web Service Method[^]