Question

im tunning this loop and what to populate the array with the output of my methods, im not sure about that last part "array2DB[i,i] =" how shold i do this.

updated loop based on replyes

 private void BackGroundLoop()
    {
        for (int i = 1; i < 31; i++)
        {
            string txbName = "br" + i + "txt" + '3';

            TextBox txtBCont1 = (TextBox)this.Controls[txbName];

            string string1 = txtBCont1.Text.ToString();
            UpdateFormClass.runUserQuery(string1);

            array2DB[0, i - 1] = int.Parse(UpdateFormClass.gamleSaker.ToString());
            array2DB[1, i - 1] = int.Parse(UpdateFormClass.nyeSaker.ToString());
        }
    }

Answer 1

I’m not 100% sure what you want to do, but you want probably this instead of your last line:

array2DB[0, i - 1] = int.Parse(UpdateFormClass.gamleSaker.ToString());
array2DB[1, i - 1] = int.Parse(UpdateFormClass.nyeSaker.ToString());

-1 in index is needed, because arrays are indexed from 0 in .NET.