/// <summary>
/// Correspones To: S[i]
/// </summary>
/// <param name="index"></param>
/// <returns><see cref="QsSequenceElement"/></returns>
public new QsSequenceElement this[int index]
{
get
{
QsSequenceElement el;
if (!this.TryGetValue(index, out el))
{
//failed to get the value
// here the magic begins
if (index > 0)
{
int IX = index;
while (!this.ContainsKey(IX))
{
IX--; //decrease the index.
}
//Bingo we found it
this.TryGetValue(IX, out el);
}
else if (index < 0)
{
int IX = index;
while (!this.ContainsKey(IX))
{
IX++; //decrease the index.
}
//Bingo we found it
this.TryGetValue(IX, out el);
}
else
{
//zero and not found the in logical error or some one altered the zero element.
throw new QsException("Damn it. Where is the zero element");
}
}
return(el);
}
set
{
if (index < MinimumIndex)
{
MinimumIndex = index;
}
if (index > MaximumIndex)
{
MaximumIndex = index;
}
value.ParentSequence = this;
value.IndexInParentSequence = index;
base[index] = value;
//clear the cache
CachedValues.Clear();
}
}
private void Finallize()
{
CachedValues?.Clear();
CachedValues2?.Clear();
}
public void DeleteUnnecessaryData()
{
CachedValues?.Clear();
CachedValues2?.Clear();
}