Listbox manipulate items – Delphi Tutorial

Delphi Tutorial Listbox manipulate items
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https://youtu.be/xa-piA1qbuk
http://tutorials-kobyx.blogspot.com

In this video you can learn how to manipulate with Listbox items in Delphi.
You can learn how to add one, add multiple items, delete one or all items , so as save items to and load from text file.

Here is also code used in this video :
unit Unit1;

interface

uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls;

type
TForm1 = class(TForm)
ListBox1: TListBox;
Button1: TButton;
Button2: TButton;
Edit1: TEdit;
Button3: TButton;
Edit2: TEdit;
Button4: TButton;
Button5: TButton;
Button6: TButton;
Button7: TButton;
OpenDialog1: TOpenDialog;
SaveDialog1: TSaveDialog;
procedure Button1Click(Sender: TObject);
procedure Button2Click(Sender: TObject);
procedure Button3Click(Sender: TObject);
procedure Button4Click(Sender: TObject);
procedure Button5Click(Sender: TObject);
procedure Button6Click(Sender: TObject);
procedure Button7Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;

var
Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
begin
ListBox1.Items.Add(‘Item – ‘+IntToStr(ListBox1.Items.Count));
end;

procedure TForm1.Button2Click(Sender: TObject);
begin
ListBox1.Items.Add(Edit1.Text);
end;

procedure TForm1.Button3Click(Sender: TObject);
var
i:Integer;
begin
ListBox1.Items.Clear; // clear all items in listbox first
for I := 1 to StrToInt(Edit2.Text) do
begin
ListBox1.Items.Add(‘Item – ‘+IntToStr(i));
end;
end;

procedure TForm1.Button4Click(Sender: TObject);
begin
ListBox1.Items.Delete(ListBox1.ItemIndex);
end;

procedure TForm1.Button5Click(Sender: TObject);
begin
ListBox1.Items.Clear;
end;

procedure TForm1.Button6Click(Sender: TObject);
begin
if SaveDialog1.Execute then
SaveDialog1.InitialDir:=’C:Temp’;
ListBox1.Items.SaveToFile(SaveDialog1.FileName);
ListBox1.Items.Clear;
end;

procedure TForm1.Button7Click(Sender: TObject);
begin
ListBox1.Items.Clear;
if OpenDialog1.Execute then
OpenDialog1.InitialDir:=’C:Temp’;
ListBox1.Items.LoadFromFile(OpenDialog1.FileName);
end;

end.

Music in video by :
bensound-theelevatorbossanova
www.bensound.com