internal static void AddCommandRef(IModel model, EventCommand command, EventCommandRef commandRef)
{
ModelHandlers handlers = GetModelHandlers(command, model, true);
lock (handlers) {
handlers.CommandRefs.Add(new WeakReference <EventCommandRef>(commandRef));
handlers.CommandRefs.RemoveStaleReferences();
}
}
public object Convert (object value, Type targetType, object parameter, CultureInfo culture)
{
if (value == null || value == DependencyProperty.UnsetValue)
return DependencyProperty.UnsetValue;
var model = value as IModel;
if (model == null)
throw new ArgumentException("value must be IModel", "value");
EventCommand command = Command ?? Display.Command;
var commandRef = new EventCommandRef {
Command = command,
Display = Display,
Model = model,
};
EventCommands.AddCommandRef(model, command, commandRef);
return commandRef;
}
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
if (value == null || value == DependencyProperty.UnsetValue)
{
return(DependencyProperty.UnsetValue);
}
var model = value as IModel;
if (model == null)
{
throw new ArgumentException("value must be IModel", "value");
}
EventCommand command = Command ?? Display.Command;
var commandRef = new EventCommandRef {
Command = command,
Display = Display,
Model = model,
};
EventCommands.AddCommandRef(model, command, commandRef);
return(commandRef);
}