Howto Use TOpenDialog

Simple and short guidelines:

1. Place a TOpenDialog widget on your form. It can be placed anywhere on your form as it is not visible during program run time but only during design time.

Image:Component_Palette_Dialogs.png

It is located in the Dialogs tab of the component palette and is the leftmost component.

2. In your code write something similar to:

if OpenDialog1.Execute then
  begin
    if fileExists(OpenDialog1.Filename) then
      ShowMessage(OpenDialog1.Filename);
  end
else
  ShowMessage('No file selected');

The dialog Execute method displays the file open dialog. It returns true when user has selected a file, false when user has aborted.

The dialog Filename property returns the full filename including drive and path.

Note: This control only collects the filename. It does not actually open the file. Your code must do that.

See also

• Howto Use TSaveDialog
• CopyFile

From the Free Pascal wiki, page "Howto Use TOpenDialog", as it stood on 2021-03-27 after a change by Trev, out of the wiki's dump of 2024-05-26. Copyright stays with the author who wrote it, according to the old wiki's Licensing page. If you have concerns about this material, message the admin.