public void MultiRegister <T>(CommandName commandType, Action <T> execute, Func <T, bool> canExecute) where T : class
{
ICommand command = new MessengerCommand <T>(execute, canExecute);
if (commands.ContainsKey(commandType))
{
OnBusinessLogicException(commandType);
}
else
{
if (multiCommands.ContainsKey(commandType))
{
if (multiCommands[commandType].All(x => !command.Equals(x)))
{
multiCommands[commandType].Add(command);
}
}
else
{
multiCommands.Add(commandType, new List <ICommand> {
command
});
}
}
}
public void MultiUnregister <T>(CommandName commandType, Action <T> execute, Func <T, bool> canExecute) where T : class
{
if (commands.ContainsKey(commandType))
{
OnBusinessLogicException(commandType);
}
else
{
MessengerCommand <T> command = new MessengerCommand <T>(execute, canExecute);
if (multiCommands.ContainsKey(commandType) && multiCommands[commandType] != null)
{
multiCommands[commandType].RemoveAll(x => command.Equals(x));
if (!multiCommands[commandType].Any())
{
MultiUnregister(commandType);
}
}
}
}