public void SkipToPrevious()
{
var indexOfCurrent = TravelTrackingOptions.IndexOf(CurrentTracker);
if (indexOfCurrent == 0)
{
return;
}
CurrentTracker = TravelTrackingOptions.ElementAt(indexOfCurrent - 1);
}
public void SkipToNext()
{
var indexOfCurrent = TravelTrackingOptions.IndexOf(CurrentTracker);
if (indexOfCurrent == TravelTrackingOptions.Count - 1)
{
return;
}
CurrentTracker = TravelTrackingOptions.ElementAt(indexOfCurrent + 1);
}
public bool IsNotFirst()
{
return(TravelTrackingOptions.IndexOf(CurrentTracker) > 0);
}
public bool IsNotLast()
{
var indexOfCurrent = TravelTrackingOptions.IndexOf(CurrentTracker);
return(indexOfCurrent < TravelTrackingOptions.Count - 1);
}