how i shift and order controls on a form with some conrols.

hello - ok . i need a flow layout but i have problem with that.
when i want to add a new control to flowlayout it is not added.
this is my code:


private Button btnAdd = new Button();


private void button1_Click(object sender, EventArgs e)
{
flowLayoutPanel1.Controls.Add(btnAdd);



}

private void Form2_Load(object sender, EventArgs e)
{
//Set up the form.
this.MaximizeBox = false;
this.MinimizeBox = false;
this.BackColor = Color.White;
this.ForeColor = Color.Black;
this.Size = new System.Drawing.Size(632, 375);
this.Text = "Run-time Controls";
this.FormBorderStyle = FormBorderStyle.FixedDialog;
this.StartPosition = FormStartPosition.CenterScreen;
//*****************************************
this.btnAdd.BackColor = Color.Gray;
this.btnAdd.Text = "Add";
this.btnAdd.Location = new System.Drawing.Point(90, 25);
this.btnAdd.Size = new System.Drawing.Size(50, 25);
}
how can i add a new control to flowflowlayout ?