Form for data input

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/*
C# Programming Tips & Techniques
by Charles Wright, Kris Jamsa

Publisher: Osborne/McGraw-Hill (December 28, 2001)
ISBN: 0072193794
*/

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

namespace Employee
{
  /// <summary>
  /// Summary description for Form1.
  /// </summary>
  public class EmployeeForm1 : System.Windows.Forms.Form
  {
    private System.Windows.Forms.ListBox listBox1;
    private System.Windows.Forms.Button button1;
    private System.Windows.Forms.Button button2;
    /// <summary>
    /// Required designer variable.
    /// </summary>
    private System.ComponentModel.Container components = null;

    public EmployeeForm1()
    {
      //
      // Required for Windows Form Designer support
      //
      InitializeComponent();

      //
      // TODO: Add any constructor code after InitializeComponent call
      //
    }

    /// <summary>
    /// Clean up any resources being used.
    /// </summary>
    protected void Dispose( bool disposing )
    {
      if( disposing )
      {
        if (components != null) 
        {
          components.Dispose();
        }
      }
      base.Dispose( disposing );
    }

    #region Windows Form Designer generated code
    /// <summary>
    /// Required method for Designer support - do not modify
    /// the contents of this method with the code editor.
    /// </summary>
    private void InitializeComponent()
    {
      this.button1 = new System.Windows.Forms.Button();
      this.button2 = new System.Windows.Forms.Button();
      this.listBox1 = new System.Windows.Forms.ListBox();
      this.SuspendLayout();
      // 
      // button1
      // 
      this.button1.Location = new System.Drawing.Point(48, 240);
      this.button1.Name = "button1";
      this.button1.Size = new System.Drawing.Size(80, 24);
      this.button1.TabIndex = 2;
      this.button1.Text = "Add Item";
      this.button1.Click += new System.EventHandler(this.button1_Click);
      // 
      // button2
      // 
      this.button2.Location = new System.Drawing.Point(160, 240);
      this.button2.Name = "button2";
      this.button2.Size = new System.Drawing.Size(96, 24);
      this.button2.TabIndex = 3;
      this.button2.Text = "Cancel";
      this.button2.Click += new System.EventHandler(this.button2_Click);
      // 
      // listBox1
      // 
      this.listBox1.Location = new System.Drawing.Point(38, 32);
      this.listBox1.Name = "listBox1";
      this.listBox1.Size = new System.Drawing.Size(216, 186);
      this.listBox1.TabIndex = 0;
      this.listBox1.DoubleClick += new System.EventHandler(this.listBox1_OnDoubleClick);
      // 
      // Form1
      // 
      this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
      this.ClientSize = new System.Drawing.Size(292, 273);
      this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                      this.listBox1,
                                      this.button2,
                                      this.button1});
      this.Name = "Form1";
      this.Text = "Form1";
      this.ResumeLayout(false);

    }
    #endregion

    /// <summary>
    /// The main entry point for the application.
    /// </summary>
    [STAThread]
    static void Main() 
    {
      Application.Run(new EmployeeForm1());
    }

    private void button1_Click(object sender, System.EventArgs e)
    {
      EMPLOYEE emp = new EMPLOYEE();
      EmpForm eform = new EmpForm (emp);
      if (eform.ShowDialog (this) == DialogResult.Cancel)
        return;
      eform.GetEmployeeData (out emp);
      listBox1.Items.Add (emp);
    }

    private void button2_Click(object sender, System.EventArgs e)
    {
      Application.Exit ();
    }

    private void listBox1_OnDoubleClick(object sender, System.EventArgs e)
    {
      int index = listBox1.SelectedIndex;
      if (index < 0)
        return;
      EMPLOYEE emp = (EMPLOYEE) listBox1.Items&#91;index&#93;;
      EmpForm eform = new EmpForm (emp);
      if (eform.ShowDialog (this) == DialogResult.Cancel)
        return;
      eform.GetEmployeeData (out emp);
      listBox1.Items.RemoveAt (index);
      listBox1.Items.Insert (index,emp);
    }
  }
  public struct EMPLOYEE
  {
    public string  FirstName;
    public string  LastName;
    public string  Address;
    public string  City;
    public string  State;
    public string  Zip;
    public override string ToString ()
    {
      return (LastName + ", " + FirstName);
    }
  }
  /// <summary>
  /// Summary description for EmpForm.
  /// </summary>
  public class EmpForm : System.Windows.Forms.Form
  {
    private System.Windows.Forms.TextBox textBox1;
    private System.Windows.Forms.TextBox textBox2;
    private System.Windows.Forms.TextBox textBox3;
    private System.Windows.Forms.TextBox textBox4;
    private System.Windows.Forms.TextBox textBox5;
    private System.Windows.Forms.TextBox textBox6;
    private System.Windows.Forms.Label label1;
    private System.Windows.Forms.Label label2;
    private System.Windows.Forms.Label label3;
    private System.Windows.Forms.Label label4;
    private System.Windows.Forms.Label label5;
    private System.Windows.Forms.Label label6;
    private System.Windows.Forms.Button button1;
    private System.Windows.Forms.Button button2;
    /// <summary>
    /// Required designer variable.
    /// </summary>
    private System.ComponentModel.Container components = null;

    public EmpForm(EMPLOYEE emp)
    {
      //
      // Required for Windows Form Designer support
      //
      InitializeComponent();

      //
      // TODO: Add any constructor code after InitializeComponent call
      //
      textBox1.Text = emp.FirstName;
      textBox2.Text = emp.LastName;
      textBox3.Text = emp.Address;
      textBox4.Text = emp.City;
      textBox5.Text = emp.State;
      textBox6.Text = emp.Zip;
    }

    /// <summary>
    /// Clean up any resources being used.
    /// </summary>
    protected override void Dispose( bool disposing )
    {
      if( disposing )
      {
        if(components != null)
        {
          components.Dispose();
        }
      }
      base.Dispose( disposing );
    }

    #region Windows Form Designer generated code
    /// <summary>
    /// Required method for Designer support - do not modify
    /// the contents of this method with the code editor.
    /// </summary>
    private void InitializeComponent()
    {
      this.textBox4 = new System.Windows.Forms.TextBox();
      this.label1 = new System.Windows.Forms.Label();
      this.label2 = new System.Windows.Forms.Label();
      this.label3 = new System.Windows.Forms.Label();
      this.textBox5 = new System.Windows.Forms.TextBox();
      this.button1 = new System.Windows.Forms.Button();
      this.button2 = new System.Windows.Forms.Button();
      this.label5 = new System.Windows.Forms.Label();
      this.label6 = new System.Windows.Forms.Label();
      this.textBox2 = new System.Windows.Forms.TextBox();
      this.textBox3 = new System.Windows.Forms.TextBox();
      this.label4 = new System.Windows.Forms.Label();
      this.textBox1 = new System.Windows.Forms.TextBox();
      this.textBox6 = new System.Windows.Forms.TextBox();
      this.SuspendLayout();
      // 
      // textBox4
      // 
      this.textBox4.Location = new System.Drawing.Point(16, 182);
      this.textBox4.Name = "textBox4";
      this.textBox4.Size = new System.Drawing.Size(120, 20);
      this.textBox4.TabIndex = 3;
      this.textBox4.Text = "";
      // 
      // label1
      // 
      this.label1.Location = new System.Drawing.Point(16, 16);
      this.label1.Name = "label1";
      this.label1.Size = new System.Drawing.Size(136, 16);
      this.label1.TabIndex = 8;
      this.label1.Text = "First Name";
      // 
      // label2
      // 
      this.label2.Location = new System.Drawing.Point(16, 64);
      this.label2.Name = "label2";
      this.label2.Size = new System.Drawing.Size(128, 16);
      this.label2.TabIndex = 9;
      this.label2.Text = "Last Name";
      // 
      // label3
      // 
      this.label3.Location = new System.Drawing.Point(16, 109);
      this.label3.Name = "label3";
      this.label3.Size = new System.Drawing.Size(120, 19);
      this.label3.TabIndex = 10;
      this.label3.Text = "Address";
      // 
      // textBox5
      // 
      this.textBox5.Location = new System.Drawing.Point(168, 184);
      this.textBox5.Name = "textBox5";
      this.textBox5.Size = new System.Drawing.Size(32, 20);
      this.textBox5.TabIndex = 4;
      this.textBox5.Text = "";
      // 
      // button1
      // 
      this.button1.DialogResult = System.Windows.Forms.DialogResult.OK;
      this.button1.Location = new System.Drawing.Point(48, 224);
      this.button1.Name = "button1";
      this.button1.TabIndex = 6;
      this.button1.Text = "OK";
      this.button1.Click += new System.EventHandler(this.button1_Click);
      // 
      // button2
      // 
      this.button2.CausesValidation = false;
      this.button2.DialogResult = System.Windows.Forms.DialogResult.Cancel;
      this.button2.Location = new System.Drawing.Point(160, 224);
      this.button2.Name = "button2";
      this.button2.TabIndex = 7;
      this.button2.Text = "Cancel";
      // 
      // label5
      // 
      this.label5.Location = new System.Drawing.Point(168, 163);
      this.label5.Name = "label5";
      this.label5.Size = new System.Drawing.Size(40, 16);
      this.label5.TabIndex = 12;
      this.label5.Text = "State";
      // 
      // label6
      // 
      this.label6.Location = new System.Drawing.Point(224, 163);
      this.label6.Name = "label6";
      this.label6.Size = new System.Drawing.Size(48, 16);
      this.label6.TabIndex = 13;
      this.label6.Text = "Zip";
      // 
      // textBox2
      // 
      this.textBox2.Location = new System.Drawing.Point(16, 82);
      this.textBox2.Name = "textBox2";
      this.textBox2.Size = new System.Drawing.Size(208, 20);
      this.textBox2.TabIndex = 1;
      this.textBox2.Text = "";
      // 
      // textBox3
      // 
      this.textBox3.Location = new System.Drawing.Point(16, 132);
      this.textBox3.Name = "textBox3";
      this.textBox3.Size = new System.Drawing.Size(208, 20);
      this.textBox3.TabIndex = 2;
      this.textBox3.Text = "";
      // 
      // label4
      // 
      this.label4.Location = new System.Drawing.Point(16, 163);
      this.label4.Name = "label4";
      this.label4.Size = new System.Drawing.Size(120, 16);
      this.label4.TabIndex = 11;
      this.label4.Text = "City";
      // 
      // textBox1
      // 
      this.textBox1.Location = new System.Drawing.Point(16, 32);
      this.textBox1.Name = "textBox1";
      this.textBox1.Size = new System.Drawing.Size(160, 20);
      this.textBox1.TabIndex = 0;
      this.textBox1.Text = "";
      // 
      // textBox6
      // 
      this.textBox6.Location = new System.Drawing.Point(224, 184);
      this.textBox6.Name = "textBox6";
      this.textBox6.Size = new System.Drawing.Size(48, 20);
      this.textBox6.TabIndex = 5;
      this.textBox6.Text = "";
      // 
      // EmpForm
      // 
      this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
      this.CancelButton = this.button2;
      this.ClientSize = new System.Drawing.Size(292, 273);
      this.Controls.AddRange(new System.Windows.Forms.Control[] {
                                      this.button2,
                                      this.button1,
                                      this.label6,
                                      this.label5,
                                      this.label4,
                                      this.label3,
                                      this.label2,
                                      this.label1,
                                      this.textBox6,
                                      this.textBox5,
                                      this.textBox4,
                                      this.textBox3,
                                      this.textBox2,
                                      this.textBox1});
      this.MinimizeBox = false;
      this.Name = "EmpForm";
      this.ShowInTaskbar = false;
      this.Text = "EmpForm";
      this.ResumeLayout(false);

    }
    #endregion

    public void GetEmployeeData (out EMPLOYEE emp)
    {
      emp.FirstName = textBox1.Text;
      emp.LastName = textBox2.Text;
      emp.Address = textBox3.Text;
      emp.City = textBox4.Text;
      emp.State = textBox5.Text;
      emp.Zip = textBox6.Text;
    }

    private void button1_Click(object sender, System.EventArgs e)
    {
      this.Close ();
    }
  }
  
}