public static void AtExpression(this Messenger messenger,
Expression expression, MessageTemplate message, params object[] parameters)
{
MessageLocation location = new MessageLocation(expression.StartToken, expression.EndToken);
messenger.Add(location, message, parameters);
}
public void Add(MessageLocation location,
MessageTemplate message, params object[] parameters)
{
_messages.Add(new Message(message, location, parameters));
HasErrors |= message.IsError;
}
