FlowLayout Controls Events

Question

There are many buttons in FlowLayout. When I click on the buttons, I want the normal colors to change. When I click the first time, the color of the button changes. There is no problem here but when I click on another button for the second time, the button I clicked before is not restored. how can i do ?

 int j =1;
    foreach (...)
                 {
                     BunifuFlatButton newButton = new BunifuFlatButton();
                     {
                         newButton.Name = string.Format("Button{0}", j);
                         flowLayoutPanel1.Controls.Add(newButton);
                         newButton.Click += NewButtonOnClick;
                         j++;
                     }

                 }




  private void NewButtonOnClick(object sender, EventArgs eventArgs)
        {
            BunifuFlatButton btn = (BunifuFlatButton)sender;
            btn.Normalcolor = Color.FromArgb(37, 66, 80);
        }

Answer 1

  List<BunifuFlatButton> btnss = new List<BunifuFlatButton>();
    private bool pressed = false;
    private void NewButtonOnClick(object sender, EventArgs eventArgs)
    {
        BunifuFlatButton btn = (BunifuFlatButton)sender;
        if (pressed)
        {
            btnss[0].Normalcolor = Color.FromArgb(37, 37, 37);
            btn.Normalcolor = Color.FromArgb(37, 66, 80);
            pressed = false;
            btnss.Clear();
            btnss.Add(btn);
        }
        else
        {
            if (btnss.Count != 0)
            {
                btnss[0].Normalcolor = Color.FromArgb(80, 80, 80);

            }
            btn.Normalcolor = Color.FromArgb(37, 66, 80);
            btnss.Clear();
            btnss.Add(btn);
            pressed = true;
        }

}