Question

for (int i = 2; i < k; i++)
{
    if ((tabl1[i].y != null) && (tabl[i].x != null))
    {
        double[] y2 = { 0, tabl1[i].y };
        double[] x2 = { tabl[i].x, 0 };
        PointPairList spl3 = new PointPairList(x2, y2);
    }
}

i want when i=3 then create

double[] y3 = { 0, tabl1[i].y }; 
double[] x3 = { tabl[i].x, 0 }; 
PointPairList spl3 = new PointPairList(x3, y3);

when i=4 then create

double[] y4 = { 0, tabl1[i].y };
double[] x4 = { tabl[i].x, 0 }; 
PointPairList spl4 = new PointPairList(x4, y4);

when i=5 then create

double[] y5 = { 0, tabl1[i].y };
double[] x5 = { tabl[i].x, 0 };
PointPairList spl5 = new PointPairList(x5, y5);

etc..

Answer 1

Question is absolutely not clair… like this?

private static Dictionary<String, PointPairList> s_PointPairLists = new Dictionary<String, PointPairList>();

private static void BuildPointPairLists(Int32 limit)
{
    for (Int32 i = 2; i < limit; ++i)
    {
        if ((tabl[i].x != null) && (tabl[i].y != null))
        {
            Double[] x = { 0, tabl[i].y };
            Double[] y = { tabl[i].x, 0 };

            s_PointPairLists[("ppl" + i.ToString())] = new PointPairList(x, y);
        }
    }
}

public static PointPairList(Int32 index)
{
    String reference = "ppl" + index.ToString();

    if (s_PointPairs.Contains(reference))
        return s_PointPairs[reference];

    return null;
}