Im getting a stackoverflow exception when i'm filling the ellipse not just one ellipse but many ellipses.
I dont think it is a problem from the graphics creator. But i can't figure out why the debugger is pointing a stackoverflow exception at the FillEllipse command
public void createPath(Stance currentStance)
{
if(toSort.Count > 0)
{
toSort.Remove(currentStance);
counter++;
}
this.currentForm.FillEllipse(new SolidBrush(Color.Red),new Rectangle(currentStance.location.X-3, currentStance.location.Y - 3, 6 , 6));
foreach(Stance subStance in currentStance.childStances)
{
double weight = level(currentStance, subStance, 1)+ currentStance.StanceWeight;
if (subStance.StanceWeight == -99999999999999)
{
currentStance.dajkstrasChildren.Add(subStance);
subStance.parentStance = currentStance;
subStance.StanceWeight = weight;
toSort.Add(subStance);
}
else
{
if(weight > subStance.StanceWeight)
{
try
{
subStance.parentStance.dajkstrasChildren.Remove(subStance);
}
catch (NullReferenceException e)
{
Console.WriteLine("null reference");
}
subStance.parentStance = currentStance;
currentStance.dajkstrasChildren.Add(subStance);
subStance.StanceWeight = weight;
}
}
}
foreach(Stance subStance in currentStance.secondChildStances)
{
double weight = level(currentStance, subStance, 1) + currentStance.StanceWeight;
if (subStance.StanceWeight == -99999999999999)
{
currentStance.dajkstrasChildren.Add(subStance);
subStance.parentStance = currentStance;
toSort.Add(subStance);
subStance.StanceWeight = weight;
}
else
{
if (weight > subStance.StanceWeight)
{
if(subStance.parentStance != null)
{
try
{
subStance.parentStance.dajkstrasChildren.Remove(subStance);
subStance.parentStance = currentStance;
currentStance.dajkstrasChildren.Add(subStance);
}
catch(NullReferenceException e)
{
Console.WriteLine("null reference");
}
}
}
}
}
toSort.Sort(new Stance());
if(toSort.Count != 0)
{
createPath((Stance)toSort[0]);
}
}
it is a recursive method but it cant recurse to infinity as it always pops a single object from the toSort ArrayList
That's because it is in the attempt to make the call to FillEllipse that the stack actually runs out.
Of course the stack overflow has to be caused by a flaw in your logic that causes your createPath method to be called recursively either (probably) indefinitely or too deeply for the stack to accommodate all the needed activation frames.