Question

I’ve initialized a 2 dimensional array and starting from index 5 onwards contain null value. I’m trying to add the array values to my Chart Control. When I try displaying the values to Console.WriteLine, there’s no exception occurred however when I add to my chart series, the exception is “Index was outside the bounds of the array.” Anyone can help me? is it because chart control has limited bars?

try
{
    //females age range
    string[,] gAge = new string[10, 2];
    gAge[0, 0] = "F.13-17";
    gAge[0, 1] = yf.f1317.ToString();
    gAge[1, 0] = "F.18-24";
    gAge[1, 1] = yf.f1824.ToString();
    gAge[2, 0] = "M.25-34";
    gAge[2, 1] = yf.m2534.ToString();
    gAge[3, 0] = "M.13-17";
    gAge[3, 1] = yf.m1317.ToString();
    gAge[4, 0] = "M.18-24";
    gAge[4, 1] = yf.m1824.ToString();

    for (int i = 0; i < gAge.Length; i++)
    {

        if (gAge[i, 0] == null)
        {
            break;
        }
        else
        {
            Console.WriteLine(gAge[i, 0].ToString());
            string[] seriesArray = { gAge[i, 0].ToString() };
            Series series = this.chart1.Series.Add(seriesArray[i]);
        }

    }
}
catch (Exception ex)
{
    Console.WriteLine(ex.Message);
}

Answer 1

The problem is that you are getting the length of your entire array, in this casegAge.Length is equal to 20 which is the total number of indices in your Array. It is exceeding the bounds of your first array dimension. Try using gAge.GetLength(0) instead.