Error: Timeout While Debugging Web Services
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When you are stepping into an XML Web service from calling code, the call may sometimes time out, with the result being that you cannot continue debugging. You may see an error message such as this.
An unhandled exception of type 'System.Net.WebException' occurred in system.Web.services.dll Additional information: The operation has timed-out.
To avoid this problem, set the timeout value for the call to the XML Web service to infinite, as shown in this example:
Service1 obj = new Service1(); obj.TimeOut = -1; // infinite time out.