DirectoriesAndFilesEnumeraion (C++)

Description

This examples demonstrates the use of methods in TDirectory class to enumerate files or directories in a file system.

Code

void __fastcall TForm1::Button1Click(TObject *Sender)
{
        TStringDynArray list;
        TSearchOption searchOption;
 
        /* Select the search option */
        if (cbDoRecursive->Checked)
                searchOption = TSearchOption::soAllDirectories;
        else
                searchOption = TSearchOption::soTopDirectoryOnly;
 
        try
        {
                /* For all entries use GetFileSystemEntries method */
                if (cbIncludeDirectories->Checked && cbIncludeFiles->Checked)
                list = TDirectory::GetFileSystemEntries(edtPath->Text, searchOption, NULL);
 
                /* For directories use GetDirectories method */
                if (cbIncludeDirectories->Checked && !cbIncludeFiles->Checked)
                list = TDirectory::GetDirectories(edtPath->Text, edtFileMask->Text, searchOption);
 
                /* For files use GetFiles method */
                if (!cbIncludeDirectories->Checked && cbIncludeFiles->Checked)
                list = TDirectory::GetFiles(edtPath->Text, edtFileMask->Text, searchOption);
        }
        catch (...)
        {
                /* Catch the possible exceptions */
                MessageDlg("Incorrect path or search mask", mtError, TMsgDlgButtons() << mbOK, 0);
                return;
        }
 
        /* Populate the memo with the results */
        mmResults->Clear();
 
        for (int i = 0; i < list.Length; i++)
                mmResults->Lines->Add(list[i]);
}
//---------------------------------------------------------------------------

Uses

• System.IOUtils.TDirectory.GetDirectories ( fr | de | ja )
• System.IOUtils.TDirectory.GetFiles ( fr | de | ja )
• System.IOUtils.TDirectory.GetFileSystemEntries ( fr | de | ja )
• System.IOUtils.TSearchOption ( fr | de | ja )