Using GroupBoxes and Panels to hold buttons : GroupBox : GUI Windows Form C# Source Code

    

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

   public class GroupBoxPanelExample : System.Windows.Forms.Form
   {
      private System.Windows.Forms.Button hiButton;
      private System.Windows.Forms.Button byeButton;
      private System.Windows.Forms.Button leftButton;
      private System.Windows.Forms.Button rightButton;

      private System.Windows.Forms.GroupBox mainGroupBox;
      private System.Windows.Forms.Label messageLabel;
      private System.Windows.Forms.Panel mainPanel;

      public GroupBoxPanelExample()
      {
         InitializeComponent();
      }
      private void InitializeComponent()
      {
         this.messageLabel = new System.Windows.Forms.Label();
         this.byeButton = new System.Windows.Forms.Button();
         this.mainGroupBox = new System.Windows.Forms.GroupBox();
         this.hiButton = new System.Windows.Forms.Button();
         this.mainPanel = new System.Windows.Forms.Panel();
         this.rightButton = new System.Windows.Forms.Button();
         this.leftButton = new System.Windows.Forms.Button();
         this.mainGroupBox.SuspendLayout();
         this.mainPanel.SuspendLayout();
         this.SuspendLayout();

         this.messageLabel.Location = new System.Drawing.Point( 24, 144 );
         this.messageLabel.Name = "messageLabel";
         this.messageLabel.Size = new System.Drawing.Size( 176, 32 );
         this.messageLabel.TabIndex = 2;

         this.byeButton.Location = new System.Drawing.Point( 96, 48 );
         this.byeButton.Name = "byeButton";
         this.byeButton.Size = new System.Drawing.Size( 72, 32 );
         this.byeButton.TabIndex = 0;
         this.byeButton.Text = "B";

         this.byeButton.Click += new System.EventHandler( this.byeButton_Click );

         this.mainGroupBox.Controls.AddRange( new System.Windows.Forms.Control[] {
            this.byeButton, this.hiButton } );
         this.mainGroupBox.Location = new System.Drawing.Point( 24, 24 );
         this.mainGroupBox.Name = "mainGroupBox";
         this.mainGroupBox.Size = new System.Drawing.Size( 176, 104 );
         this.mainGroupBox.TabIndex = 0;
         this.mainGroupBox.TabStop = false;
         this.mainGroupBox.Text = "Main GroupBox";

         this.hiButton.Location = new System.Drawing.Point( 8, 48 );
         this.hiButton.Name = "hiButton";
         this.hiButton.Size = new System.Drawing.Size( 72, 32 );
         this.hiButton.TabIndex = 0;
         this.hiButton.Text = "A";
         this.hiButton.Click += new System.EventHandler(this.hiButton_Click );

         this.mainPanel.AutoScroll = true;
         this.mainPanel.BorderStyle =System.Windows.Forms.BorderStyle.FixedSingle;

         this.mainPanel.Controls.AddRange(new System.Windows.Forms.Control[] {
            this.rightButton,this.leftButton } );
         this.mainPanel.Location =new System.Drawing.Point( 24, 192 );
         this.mainPanel.Name = "mainPanel";
         this.mainPanel.Size =new System.Drawing.Size( 176, 112 );
         this.mainPanel.TabIndex = 1;

         this.rightButton.Location =new System.Drawing.Point( 264, 40 );
         this.rightButton.Name = "rightButton";
         this.rightButton.Size =new System.Drawing.Size( 80, 40 );
         this.rightButton.TabIndex = 0;
         this.rightButton.Text = "Far Right";
         this.rightButton.Click += new System.EventHandler(this.rightButton_Click );

         this.leftButton.Location =new System.Drawing.Point( 8, 40 );
         this.leftButton.Name = "leftButton";
         this.leftButton.Size =new System.Drawing.Size( 80, 40 );
         this.leftButton.TabIndex = 0;
         this.leftButton.Text = "Far Left";
         this.leftButton.Click +=new System.EventHandler( this.leftButton_Click );

         this.AutoScaleBaseSize =new System.Drawing.Size( 5, 13 );
         this.ClientSize =new System.Drawing.Size( 224, 317 );
         this.Controls.AddRange(new System.Windows.Forms.Control[] {
               this.messageLabel,this.mainPanel,this.mainGroupBox } );
         this.Name = "GroupBoxPanelExample";
         this.Text = "GroupBoxPanelExample";
         this.mainGroupBox.ResumeLayout( false );
         this.mainPanel.ResumeLayout( false );
         this.ResumeLayout( false );

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

      private void hiButton_Click( object sender, System.EventArgs e )
      {
         messageLabel.Text= "A pressed";
      }

      private void byeButton_Click(object sender, System.EventArgs e )
      {
         messageLabel.Text = "B pressed";
      }

      private void leftButton_Click(object sender, System.EventArgs e )
      {
         messageLabel.Text = "Far left pressed";
      }

      private void rightButton_Click( 
         object sender, System.EventArgs e )
      {
         messageLabel.Text = "Far right pressed";
      }
   }