C# how to sort chess board's numbers

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C#

WinForms

I need to sort chess board's numbers like this`
8
7
6
5
4
3
2
1

but in my case it sorted like this`
1
2
3
4
5
6
7
8
what's my mistake?

What I have tried:

for (int i = 8; i > 0; i--)
            {
                Label lab = new Label();
                lab.Text = i.ToString();
                lab.Font = new Font("Tahoma", 18);
                lab.Location = new Point(0, 50 * i);
                lab.Width = 50;
                lab.Height = 26;
                this.Controls.Add(lab);
            }