TabControl

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

class Form1 : Form {
    public Form1() {
        this.tabPage2 = new System.Windows.Forms.TabPage();
        this.textBoxMessage = new System.Windows.Forms.TextBox();
        this.tabPage1 = new System.Windows.Forms.TabPage();
        this.buttonShowMessage = new System.Windows.Forms.Button();
        this.tabControl1 = new System.Windows.Forms.TabControl();
        this.tabPage2.SuspendLayout();
        this.tabPage1.SuspendLayout();
        this.tabControl1.SuspendLayout();
        this.SuspendLayout();

        this.tabPage2.Controls.Add(this.textBoxMessage);
        this.tabPage2.Location = new System.Drawing.Point(4, 22);
        this.tabPage2.Name = "tabPage2";
        this.tabPage2.Padding = new System.Windows.Forms.Padding(3);
        this.tabPage2.Size = new System.Drawing.Size(259, 37);
        this.tabPage2.TabIndex = 1;
        this.tabPage2.Text = "Tab Two";

        this.textBoxMessage.Location = new System.Drawing.Point(72, 7);
        this.textBoxMessage.Name = "textBoxMessage";
        this.textBoxMessage.Size = new System.Drawing.Size(100, 20);
        this.textBoxMessage.TabIndex = 0;

        this.tabPage1.Controls.Add(this.buttonShowMessage);
        this.tabPage1.Location = new System.Drawing.Point(4, 22);
        this.tabPage1.Name = "tabPage1";
        this.tabPage1.Padding = new System.Windows.Forms.Padding(3);
        this.tabPage1.Size = new System.Drawing.Size(259, 37);
        this.tabPage1.TabIndex = 0;
        this.tabPage1.Text = "Tab One";

        this.buttonShowMessage.Location = new System.Drawing.Point(74, 7);
        this.buttonShowMessage.Name = "buttonShowMessage";
        this.buttonShowMessage.Size = new System.Drawing.Size(107, 24);
        this.buttonShowMessage.TabIndex = 0;
        this.buttonShowMessage.Text = "Show Message";
        this.buttonShowMessage.Click += new System.EventHandler(this.buttonShowMessage_Click);

        this.tabControl1.Controls.Add(this.tabPage1);
        this.tabControl1.Controls.Add(this.tabPage2);
        this.tabControl1.Location = new System.Drawing.Point(13, 13);
        this.tabControl1.Name = "tabControl1";
        this.tabControl1.SelectedIndex = 0;
        this.tabControl1.Size = new System.Drawing.Size(267, 63);
        this.tabControl1.TabIndex = 0;

        this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
        this.ClientSize = new System.Drawing.Size(292, 83);
        this.Controls.Add(this.tabControl1);
        this.tabPage2.ResumeLayout(false);
        this.tabPage2.PerformLayout();
        this.tabPage1.ResumeLayout(false);
        this.tabControl1.ResumeLayout(false);
        this.ResumeLayout(false);
    }
    private void buttonShowMessage_Click(object sender, EventArgs e) {
        MessageBox.Show(this.textBoxMessage.Text);
    }
    private System.Windows.Forms.TabPage tabPage2;
    private System.Windows.Forms.TextBox textBoxMessage;
    private System.Windows.Forms.TabPage tabPage1;
    private System.Windows.Forms.Button buttonShowMessage;
    private System.Windows.Forms.TabControl tabControl1;
    [STAThread]
    static void Main() {
        Application.EnableVisualStyles();
        Application.Run(new Form1());
    }

}