Release 10.1A: OpenEdge Development:
Web Services

Handling errors on the client

To handle a SOAP fault in a VB.NET client, catch the SoapException and parse it, as shown:

Try    ' Code to access the Web service    ...    Catch soapEx As System.Web.Services.Protocols.SoapException       Dim detail As String, reqId As String          detail = parseSoapException(soapEx.Detail, reqId)          MsgBox(detail, MsgBoxStyle.Critical, soapEx.Message) End Try

Caution: In any catch block where you exit the program, you must release all Web service objects you created in the program.

The parseSoapException( ) method in this example is a client function provided in the .NET samples installed with OpenEdge (see Chapter 6 "Sample Progress 4GL Web Services and Client Applications"). It parses the detail error information from the SOAP fault message.

You can also use the Microsoft SOAP Toolkit to assist in debugging SOAP fault messages. For more information, see Chapter 7, " Testing and Debugging Progress 4GL Web Services."