Question

I have a simple function:

void licz()
{
    int result = 0;
    for (int i = 0; i < 20; i++)
    {
        wynik = +i;
        textBox1.Text = result.ToString() + Environment.NewLine;               
    }
    MessageBox.Show("Wynik: " + result);
}

And I want, the textBox1 showing everyone result (step by step). Now is showing just finish result, the same as MessageBox (Wynik: 19).

Answer 1

Maybe you should change to this?

textBox1.Text += result.ToString() + Environment.NewLine;