Button derived color selection control in C#

using System ;
using System.Drawing ;
using System.ComponentModel ;
using System.Windows.Forms ;

namespace ColorButtonDemo
{
	public class Form1 : System.Windows.Forms.Form
	{
        private System.ComponentModel.Container components = null ;

        private ColorButton.ColorButton buttonColor ;
        private System.Windows.Forms.GroupBox groupBox1 ;
        private System.Windows.Forms.CheckBox checkBoxAuto ;
        private System.Windows.Forms.CheckBox checkBoxMore ;
        private System.Windows.Forms.GroupBox groupBox2 ;
        private System.Windows.Forms.Label labelSelected ;

		public Form1()
		{
			InitializeComponent() ;

            buttonColor.Color = Color.Red ;
            labelSelected.ForeColor = Color.Red ;
        }

		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if( components != null )
				{
					components.Dispose() ;
				}
			}

			base.Dispose( disposing ) ;
		}

		#region Vom Windows Form-Designer generierter Code
		private void InitializeComponent()
		{
            this.groupBox1 = new System.Windows.Forms.GroupBox();
            this.checkBoxMore = new System.Windows.Forms.CheckBox();
            this.checkBoxAuto = new System.Windows.Forms.CheckBox();
            this.buttonColor = new ColorButton.ColorButton();
            this.groupBox2 = new System.Windows.Forms.GroupBox();
            this.labelSelected = new System.Windows.Forms.Label();
            this.groupBox1.SuspendLayout();
            this.groupBox2.SuspendLayout();
            this.SuspendLayout();
            // 
            // groupBox1
            // 
            this.groupBox1.Controls.Add(this.checkBoxMore);
            this.groupBox1.Controls.Add(this.checkBoxAuto);
            this.groupBox1.Location = new System.Drawing.Point(192, 16);
            this.groupBox1.Name = "groupBox1";
            this.groupBox1.Size = new System.Drawing.Size(120, 72);
            this.groupBox1.TabIndex = 1;
            this.groupBox1.TabStop = false;
            this.groupBox1.Text = "Options";
            // 
            // checkBoxMore
            // 
            this.checkBoxMore.Checked = true;
            this.checkBoxMore.CheckState = System.Windows.Forms.CheckState.Checked;
            this.checkBoxMore.Location = new System.Drawing.Point(16, 40);
            this.checkBoxMore.Name = "checkBoxMore";
            this.checkBoxMore.Size = new System.Drawing.Size(88, 24);
            this.checkBoxMore.TabIndex = 1;
            this.checkBoxMore.Text = "More Colors";
            this.checkBoxMore.CheckedChanged += new System.EventHandler(this.OnMoreColors);
            // 
            // checkBoxAuto
            // 
            this.checkBoxAuto.Checked = true;
            this.checkBoxAuto.CheckState = System.Windows.Forms.CheckState.Checked;
            this.checkBoxAuto.Location = new System.Drawing.Point(16, 16);
            this.checkBoxAuto.Name = "checkBoxAuto";
            this.checkBoxAuto.Size = new System.Drawing.Size(80, 24);
            this.checkBoxAuto.TabIndex = 0;
            this.checkBoxAuto.Text = "Automatic";
            this.checkBoxAuto.CheckedChanged += new System.EventHandler(this.OnAutomatic);
            // 
            // buttonColor
            // 
            this.buttonColor.Automatic = "Automatic";
            this.buttonColor.Color = System.Drawing.Color.Transparent;
            this.buttonColor.Location = new System.Drawing.Point(24, 24);
            this.buttonColor.MoreColors = "More Colors...";
            this.buttonColor.Name = "buttonColor";
            this.buttonColor.Size = new System.Drawing.Size(64, 23);
            this.buttonColor.TabIndex = 0;
            this.buttonColor.Changed += new System.EventHandler(this.OnChanged);
            // 
            // groupBox2
            // 
            this.groupBox2.Controls.Add(this.labelSelected);
            this.groupBox2.Location = new System.Drawing.Point(192, 104);
            this.groupBox2.Name = "groupBox2";
            this.groupBox2.Size = new System.Drawing.Size(120, 56);
            this.groupBox2.TabIndex = 2;
            this.groupBox2.TabStop = false;
            this.groupBox2.Text = "Changed Event";
            // 
            // labelSelected
            // 
            this.labelSelected.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
            this.labelSelected.Location = new System.Drawing.Point(16, 24);
            this.labelSelected.Name = "labelSelected";
            this.labelSelected.Size = new System.Drawing.Size(96, 23);
            this.labelSelected.TabIndex = 0;
            this.labelSelected.Text = "Selected Color";
            // 
            // Form1
            // 
            this.AutoScaleBaseSize = new System.Drawing.Size(5, 14);
            this.ClientSize = new System.Drawing.Size(330, 208);
            this.Controls.Add(this.groupBox2);
            this.Controls.Add(this.buttonColor);
            this.Controls.Add(this.groupBox1);
            this.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
            this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
            this.MaximizeBox = false;
            this.MinimizeBox = false;
            this.Name = "Form1";
            this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
            this.Text = "ColorButton Demo";
            this.groupBox1.ResumeLayout(false);
            this.groupBox2.ResumeLayout(false);
            this.ResumeLayout(false);

        }
		#endregion

		[STAThread]
		static void Main() 
		{
			Application.Run( new Form1() ) ;
		}

        private void OnAutomatic( object sender, System.EventArgs e )
        {
            if( checkBoxAuto.Checked )
                buttonColor.Automatic = "Automatic" ;
            else
                buttonColor.Automatic = "" ;
        }

        private void OnMoreColors( object sender, System.EventArgs e )
        {
            if( checkBoxMore.Checked )
                buttonColor.MoreColors = "More Colors..." ;
            else
                buttonColor.MoreColors = "" ;
        }

        private void OnChanged( object sender, System.EventArgs e )
        {
            if( buttonColor.Color == Color.Transparent )
            {
                labelSelected.Text = "Automatic Color" ;
                labelSelected.ForeColor = Color.Black ;
            }
            else
            {
                labelSelected.Text = "Selected Color" ;
                labelSelected.ForeColor = buttonColor.Color ;
            }
        }
	}
}