// Invoke the operation for the requested service
public object Invoke(string service, string operation, DataParameterCollection dpc, int timeout)
{
// Create an instance of the service object proxy
object o = _WsdlAssembly.CreateInstance(_Namespace + "." + service, false);
if (o == null)
throw new Exception(string.Format("Unable to create instance of service '{0}'.", service));
// Get information about the method
MethodInfo mi = o.GetType().GetMethod(operation);
if (mi == null)
throw new Exception(string.Format("Unable to find operation '{0}' in service '{1}'.", operation, service));
// Go thru the parameters building up an object array with the proper parameters
ParameterInfo[] pis = mi.GetParameters();
object[] args = new object[pis.Length];
int ai=0;
foreach (ParameterInfo pi in pis)
{
BaseDataParameter dp = dpc[pi.Name] as BaseDataParameter;
if (dp == null) // retry with '@' in front!
dp = dpc["@"+pi.Name] as BaseDataParameter;
if (dp == null || dp.Value == null)
args[ai] = null;
else if (pi.ParameterType == dp.Value.GetType())
args[ai] = dp.Value;
else // we need to do conversion
args[ai] = Convert.ChangeType(dp.Value, pi.ParameterType);
ai++;
}
SoapHttpClientProtocol so = o as SoapHttpClientProtocol;
if (so != null && timeout != 0)
so.Timeout = timeout;
return mi.Invoke(o, args);
}
