CODEWITHSUNDEEP
filedelphisaveini
user7262582
user7262582

Reputation:

How to overwrite INI file

I have this code which saves the location of Objects in an ini file but when I try to overwrite an already saved file, it doesn't delete the data currently in the file.

I have a popup which asks the user if they want to overwrite but it doesn't clear the whole file, how can I change it so it does? 

procedure TForm1.SaveFile(Sender: TObject);
var
  Dialog : TSaveDialog;
begin
  Dialog := TSaveDialog.Create(self);
  try
    //dialog properties go here
    Dialog.Filter := 'Title (*.ini)|*.ini';
    Dialog.Options := Dialog.Options + [ofOverwritePrompt];
    if Dialog.Execute then
    begin
      //any saving procedures go here if required

      ShowMessage('File saved: ' + Dialog.FileName);
    end 
  else
      ShowMessage('Save file was cancelled');
  finally
    Dialog.Free;
  end;
end;

The following procedure saves the objects to the file itself:

procedure TForm1.Save(const FileName: string);
var
  Ini: TMemIniFile;
  I: Integer;

procedure WhatYouAreSaving(Object: TButton);
  var
    Section: string;
  begin
    Section := 'Object'
    //Properties you want to save go here
  end;

begin
  Ini := TMemIniFile.Create(FileName);
  ////For reference, the answer provided would go here
  try
    WhatYouAreSaving(Object);
    Ini.UpdateFile;
  finally
    Ini.Free;
  end;
end;

Upvotes: 0

Views: 1786

Answers (1)

LU RD
LU RD

Reputation: 34929

To clear the contents of the ini-file, call Ini.Clear after Ini := TMemIniFile.Create(FileName);

Erases all data from the INI file in memory.

Call Clear to erase all data from the INI file that is currently buffered in memory. All sections, keys, and values are erased.

To erase a section in the ini-file, use TMemIniFile.EraseSection.

Upvotes: 3

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