private void AddEventHandlers(IMainMenuInstance mainMenu)
{
var handlerMethods = ClassHelper.FindAnnotatedMethods <MenuEventHandlerAttribute>(mainMenu);
foreach (var method in handlerMethods)
{
var attribute = method.GetAttribute <MenuEventHandlerAttribute>();
try
{
if (attribute.Before)
{
before.Add(attribute.MenuId, method.CreateBeforeEventDelegate <MenuEvent>(mainMenu));
}
else
{
after.Add(attribute.MenuId, method.CreateAfterEventDelegate <MenuEvent>(mainMenu));
}
}
catch (ArgumentException e)
{
var exception =
new EventHandlerAlreadyExistsException(
$"A menu event handler for {attribute.MenuId} already exists. Duplicate method {method.Name}.",
e);
throw exception;
}
HandlerAdded(this, new HandlerAddedEventArgs(BoEventTypes.et_MENU_CLICK, @"ALL_FORMS"));
}
}
/// <summary>
/// Initializes a new instance of the <see cref="EventHandlerAlreadyExistsException" /> class.
/// </summary>
/// <param name="key">The key of the event handler.</param>
public static EventHandlerAlreadyExistsException CreateFromKey(string key)
{
var exception = new EventHandlerAlreadyExistsException($"{key} is already registered.");
return(exception);
}
