Adding data to a GridView

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C#

ASP.NET

Hello!

I am trying to add a data dynamiclly to my GridView but I'm geeting an error:


Exception Details: System.IndexOutOfRangeException: There is no row at position 1.
Source Error:

Line 69: drow = dt.NewRow();
Line 70: dt.Rows.Add(drow);
Line 71: dt.Rows[i][col1] = i.ToString();
Line 72: vol_dobanda = (float.Parse(credit.ToString()) * rata_lunara * i) / 100;
Line 73: dt.Rows[i][col2] = vol_dobanda.ToString();

What did I do wrong ?
Thanks in advance!