unit WinForm;

interface

uses
  System.Drawing, System.Collections, System.ComponentModel,
  System.Windows.Forms, System.Data;

type
  TWinForm = class(System.Windows.Forms.Form)
  {$REGION 'Designer Managed Code'}
  strict private
    /// <summary>
    /// Required designer variable.
    /// </summary>
    Components: System.ComponentModel.Container;
    Button1: System.Windows.Forms.Button;
    Label1: System.Windows.Forms.Label;
    ComboBox1: System.Windows.Forms.ComboBox;
    /// <summary>
    /// Required method for Designer support - do not modify
    /// the contents of this method with the code editor.
    /// </summary>
    procedure InitializeComponent;
    procedure Button1_Click(sender: System.Object; e: System.EventArgs);
    procedure TWinForm_Load(sender: System.Object; e: System.EventArgs);
  {$ENDREGION}
  strict protected
    /// <summary>
    /// Clean up any resources being used.
    /// </summary>
    procedure Dispose(Disposing: Boolean); override;
  private
    { Private Declarations }
  public
    constructor Create;
  end;

  [assembly: RuntimeRequiredAttribute(TypeOf(TWinForm))]

implementation

{$AUTOBOX ON}

{$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>
procedure TWinForm.InitializeComponent;
begin
  Self.Button1 := System.Windows.Forms.Button.Create;
  Self.Label1 := System.Windows.Forms.Label.Create;
  Self.ComboBox1 := System.Windows.Forms.ComboBox.Create;
  Self.SuspendLayout;
  // 
  // Button1
  // 
  Self.Button1.Font := System.Drawing.Font.Create('Microsoft Sans Serif', 12, 
      System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, (Byte(0)));
  Self.Button1.Location := System.Drawing.Point.Create(92, 200);
  Self.Button1.Name := 'Button1';
  Self.Button1.Size := System.Drawing.Size.Create(112, 32);
  Self.Button1.TabIndex := 0;
  Self.Button1.Text := '&Calculate';
  Include(Self.Button1.Click, Self.Button1_Click);
  // 
  // Label1
  // 
  Self.Label1.BorderStyle := System.Windows.Forms.BorderStyle.Fixed3D;
  Self.Label1.Font := System.Drawing.Font.Create('Microsoft Sans Serif', 12, 
      System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, (Byte(0)));
  Self.Label1.Location := System.Drawing.Point.Create(24, 40);
  Self.Label1.Name := 'Label1';
  Self.Label1.Size := System.Drawing.Size.Create(248, 32);
  Self.Label1.TabIndex := 1;
  Self.Label1.Text := 'The drop down menu is empty';
  Self.Label1.TextAlign := System.Drawing.ContentAlignment.MiddleCenter;
  // 
  // ComboBox1
  // 
  Self.ComboBox1.Font := System.Drawing.Font.Create('Microsoft Sans Serif', 12, 
      System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, (Byte(0)));
  Self.ComboBox1.Location := System.Drawing.Point.Create(72, 120);
  Self.ComboBox1.Name := 'ComboBox1';
  Self.ComboBox1.Size := System.Drawing.Size.Create(152, 28);
  Self.ComboBox1.TabIndex := 2;
  Self.ComboBox1.Text := 'Click me';
  // 
  // TWinForm
  // 
  Self.AutoScaleBaseSize := System.Drawing.Size.Create(5, 13);
  Self.ClientSize := System.Drawing.Size.Create(292, 273);
  Self.Controls.Add(Self.ComboBox1);
  Self.Controls.Add(Self.Label1);
  Self.Controls.Add(Self.Button1);
  Self.FormBorderStyle := System.Windows.Forms.FormBorderStyle.Fixed3D;
  Self.MaximizeBox := False;
  Self.Name := 'TWinForm';
  Self.StartPosition := System.Windows.Forms.FormStartPosition.CenterScreen;
  Self.Text := 'Split String';
  Include(Self.Load, Self.TWinForm_Load);
  Self.ResumeLayout(False);
end;
{$ENDREGION}

procedure TWinForm.Dispose(Disposing: Boolean);
begin
  if Disposing then
  begin
    if Components <> nil then
      Components.Dispose();
  end;
  inherited Dispose(Disposing);
end;

constructor TWinForm.Create;
begin
  inherited Create;
  //
  // Required for Windows Form Designer support
  //
  InitializeComponent;
  //
  // TODO: Add any constructor code after InitializeComponent call
  //
end;

procedure TWinForm.TWinForm_Load(sender: System.Object; e: System.EventArgs);
begin

end;

procedure TWinForm.Button1_Click(sender: System.Object; e: System.EventArgs);
var
  strName : string;
  strTemp : string;
  i : integer;
  x : integer;

begin

  strName := 'joe;paul;john;jose;elena;';
  self.Label1.Text := strName;
  self.ComboBox1.Items.Clear;

  for i := 1 to strName.Length do
  begin
    if strName[i] <> ';' then
    begin
      strTemp := strTemp + strName[i];
    end
    else
    begin
      self.ComboBox1.Items.Add(strTemp);
      strTemp := '';
      x := x + 1;
    end;
  end;
  Messagebox.Show('Combo Box updated with '+x.ToString+' names');
end;

end.