public Model.Picture Next()
{
if (Pictures.Count() == 0)
{
return(null);
}
++_CurrentIndex;
_CurrentIndex %= Pictures.Count();
return(Pictures[_CurrentIndex]);
}
public Model.Picture Prev()
{
if (Pictures.Count() == 0)
{
return(null);
}
if (_CurrentIndex > 0)
{
--_CurrentIndex;
}
else
{
_CurrentIndex = Pictures.Count() - 1;
}
return(Pictures[_CurrentIndex]);
}