Question

How to do something on form startup like :

  RichEdit1.Lines.Add('sorry [e-mail] is already in our database');

NOT untill the user take some action ( Button click, etc..)

I tried with the code below and it works but i am obliged to click on the button one in order to add that line into the richEdit1 compenent.

Answer 1

You can use the OnActivate event of the form to set properties for visual controls. I usually do it as follows:

procedure TForm1.FormActivate(Sender: TObject);
begin
  //Allow this code to run only once
  OnActivate := nil;

  //Set RichEdit Properties
  RichEdit1.Lines.Add('sorry [e-mail] is already in our database');
end;