whats new ¦  programming tips ¦  indy articles ¦  intraweb articles ¦  informations ¦  links ¦  interviews
 misc ¦  tutorials ¦  Add&Win Game

Tips (1548)

Database (90)
Files (137)
Forms (107)
Graphic (116)
IDE (21)
Indy (5)
Internet / LAN (131)
IntraWeb (0)
Math (76)
Misc (127)
Multimedia (45)
Objects/
ActiveX (51)

OpenTools API (3)
Printing (35)
Strings (83)
System (268)
VCL (243)

Top15

Tips sort by
component


Search Tip

Add new Tip

Add&Win Game

Advertising

17 Visitors Online


 
...resize the width of the drop-down list of a TComboBox?
Autor: Thomas Stutz
[ Print tip ]  

Tip Rating (7):  
     




procedure TForm1.Button1Click(Sender: TObject);
const
  
PIXEL_WIDTH = 200;
begin
  
ComboBox1.Perform(CB_SETDROPPEDWIDTH, PIXEL_WIDTH, 0);
end;


{With this Code, the drop-down list will automatically be sized to the longest string.}

procedure TForm1.Button2Click(Sender: TObject);
var
  
i, ItemWidth: Integer;
begin
  
ItemWidth := 0;
  with Combobox1 do
  begin
    for 
i := 0 to Items.Count - 1 do
      if 
(Form1.Canvas.TextWidth(Items[i]) <> ItemWidth) then
        
ItemWidth := Form1.Canvas.TextWidth((Items[i])) + 20;
    Perform(CB_SETDROPPEDWIDTH, ItemWidth, 0);
  end;
end;


 

Rate this tip:

poor
very good


Copyright © by SwissDelphiCenter.ch
All trademarks are the sole property of their respective owners