///////////////////////////////////////////////////////////////////////
private static bool HasData(
IClientData clientData,
ref object data
)
{
//
// NOTE: If the IClientData instance is null or equals our reserved
// "empty" instance, then it contains no actual data.
//
if ((clientData == null) ||
Object.ReferenceEquals(clientData, Empty))
{
return(false);
}
//
// NOTE: If this a "plain old" IClientData instance of the default
// type and it contains null data, we know there is no actual
// data in it.
//
object localData = clientData.Data;
if ((clientData.GetType() == typeof(ClientData)) &&
(localData == null))
{
return(false);
}
//
// NOTE: Otherwise, we must assume it contains actual data.
//
data = localData;
return(true);
}
