delphi - Remove empty strings from TStringList -


is there build-in function in delphi remove strings tstringlist empty?

how loop through list remove these items?

to answer first question, there no built in function that. looping manually easy. should it:

for := mylist.count - 1 downto 0 begin   if trim(mylist[i]) = ''     mylist.delete(i); end;

note loop must traverse list in reverse starting count-1 down 0 work.

the use of trim() optional, depending on whether want remove strings contain whitespace or not. changing if statement if mylist[i] = '' then remove empty strings.

here full routine showing code in action:

procedure tmyform.button1click(sender: tobject); var   i: integer;   mylist: tstringlist; begin   mylist := tstringlist.create;   try     // add random stuff string list     := 0 100       mylist.add(stringofchar('y', random(10)));     // clear out items empty     := mylist.count - 1 downto 0     begin       if trim(mylist[i]) = ''         mylist.delete(i);     end;     // show remaining items numbers in list box     := 0 mylist.count - 1       listbox1.items.add(inttostr(i)+' '+mylist[i]);       mylist.free;   end; end;

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