ARCed.Database.Actors.ChartSettingsForm.ListBoxColorsSelectedIndexChanged C# (CSharp) Метод

        private void ListBoxColorsSelectedIndexChanged(object sender, EventArgs e)
        {
            bool enable = this.listBoxColors.SelectedIndex >= 0 && this.listBoxColors.Items.Count > 1;
            this.buttonDown.Enabled = enable;
            this.buttonUp.Enabled = enable;
            this.buttonRemove.Enabled = enable;
        }