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Hi, I'm not sure how to use AddObject. What I wanna do is... I use 3 TEdits, 1 TListBox, and 1 TButton. I write some words in each Edits. When I push the Button, the name I put into Edit1 will be shown in ListBox. Then if I choose a certain name from ListBox, the information I put into each...

Hi, there. I want to delete an element from a dynamic array. I read Delphi's help and it tells that I can use Delete to delete an element from an array.So I used Delete but it doesn't work. An error occurs. Thanks in advance.

Hi, Sorry for asking a stupid question.But I'm really confused. In OnkeyPress, this code works properly. if Key = #13 then Key := #0; But these code in OnKeyDown don't work. Why? if Key = Ord('a') then Key := 0; if Key = VK_ENTER then Key := 0; Of course KeyPreview = True. Thanks in advance.

Hi, This is what I want to do... I use 2 forms. Form1 has a Listbox, an Edit, and two Buttons.I input someone's name to the Edit.Then when I push the Button, the name will be added to the ListboxItems. When I push the other Button, Form2'll be shown which has 3 Edits and one Button. Edit1 has...

Hi, With TEdit, I want to put '-' just before and after numbers like that. -123 or 123- NOT like -12-3, 123--, -123- I wrote the code provided below but this one can control '-' put only before numbers. (OnKeyPress event) if (Key = '-') and (Edit1.SelStart <> 0) then begin Key := #0...

>towerbase I tried the code you told me and it worked quite well. Thank you very much!

Hi, I'm completely new to Delphi and I need help. How can I split the string and add comma every three digits like that? abc,def,ghi I could split numbers using FormatFloat but string??? Thank you for any help.