Command.Registry.Contains C# (CSharp) Méthode

        public bool Contains(Type type)
        {
            return _factories.ContainsKey(type);
        }

 /// <summary>
 /// Verifies that all commands can be invoked successfully.
 /// </summary>
 public void Verify()
 {
     _log.Trace("Verifying all commands and parameters are reachable...");
     foreach (var cmd in _registry.Commands())
     {
         _log.TraceFormat("Validating command {0}", cmd.Name);
         if (!HasObject(cmd.Type))
         {
             // Check that a factory exists for the command class
             if (_registry.Contains(cmd.Type))
             {
                 // Check that path exists to factory
                 FindPathToType(cmd.Type, cmd);
             }
             else
             {
                 // No factory is registered for type
                 throw new ContextException(string.Format(
                                                "No factory is registered for type " +
                                                "{0} (defines the {1} command)",
                                                cmd.Type, cmd.Name));
             }
         }
         foreach (var parm in cmd.Parameters)
         {
             _log.DebugFormat("Validating command parameter {0}", parm.Name);
             if (!parm.HasParameterAttribute &&
                 !parm.IsSettingsCollection &&
                 !HasObject(parm.ParameterType))
             {
                 // Check that a factory exists for the param type
                 if (_registry.Contains(parm.ParameterType))
                 {
                     // Check that path exists to factory
                     FindPathToType(parm.ParameterType, cmd);
                 }
                 else
                 {
                     // No factory is registered for type
                     throw new ContextException(string.Format(
                                                    "No factory is registered for type " +
                                                    "{0} (used in the {1} command parameter {2})",
                                                    parm.ParameterType, cmd.Name, parm.Name));
                 }
             }
         }
     }
 }