public bool MoveNext()
{
if (this.myEnumeratorValid)
{
if (this.myEnumerator.MoveNext())
{
return(true);
}
this.myEnumeratorValid = false;
}
if (this.myForward)
{
while ((this.myIndex + 1) < this.myArray.Count)
{
this.myIndex++;
DiagramLayer layer1 = (DiagramLayer)this.myArray[this.myIndex];
this.myEnumerator = layer1.GetEnumerator();
this.myEnumeratorValid = true;
if (this.myEnumerator.MoveNext())
{
return(true);
}
}
return(false);
}
while ((this.myIndex - 1) >= 0)
{
this.myIndex--;
DiagramLayer layer2 = (DiagramLayer)this.myArray[this.myIndex];
this.myEnumerator = layer2.Backwards;
this.myEnumeratorValid = true;
if (this.myEnumerator.MoveNext())
{
return(true);
}
}
return(false);
}
