FileListBoxIndexOf (C++)

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This example uses a file list box, a directory list box, and a label on a form. When you use the directory list box to change directories, a message appears and the color of the form changes if the file AUTOEXEC.BAT is in the new directory. The code is written in the OnChange event of the directory list box.


void __fastcall TForm1::DirectoryListBox1Change(TObject *Sender)
  FileListBox1->Directory = DirectoryListBox1->Directory;
  if (FileListBox1->Items->IndexOf("AUTOEXEC.BAT") > -1)
    Color = clYellow;
    Label1->Caption = "You are in the root directory!";