Copy only checked TListBox.Items to a TStringList

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How do I copy all the items (strings) of listbox to a stringlist object? All help sources only show how to copy a stringlist to a listbox.items, I want to do it the other way around. How is that done?

As an addition, how can only the selected (checked items) be copied to a StringList?

Posted 29-Jun-12 0:43am

Winston_D

Updated 29-Jun-12 1:16am

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E.F. Nijboer · Accepted Answer · 2012-06-29T01:34:00

Solution 1

Delphi

for i := 0 to CheckListBox1.Items.Count - 1 do
  begin
    if CheckListBox1.Checked[i] then
    begin
      sl.Add(CheckListBox1.Items.Strings[i]);
    end;
  end;

You can use Selected instead of Checked to get the selected items in a listbox.

Good luck!

Posted 29-Jun-12 1:34am

E.F. Nijboer

Comments

Winston_D 29-Jun-12 8:09am

Thanks, I was curious if there was something like

StringList := CheckListBox.Items;

That could be done.. The above code doesn't work however, something in similar simplicity.

Tnx for the help though!

E.F. Nijboer 29-Jun-12 10:34am

The problem is that the TStrings (ListBox uses TListBoxStrings internally) is very inefficient to store the checked and selected string values. That's why it simply uses an array of boolean values.