The form does not yet perform any actions when the user clicks the OK button.  

For information on editing the main form, see Editing the Main Form.

1. Double-click the OK button on the form. An empty event handler is created in the editor window, like the one shown here:

procedure TformMain.IWButton1Click(Sender: TObject);
begin

end;

2. Using the editor, add code to the event handler so it looks like the following:

procedure TformMain.IWButton1Click(Sender: TObject);
var s: string;
begin
   s := editName.Text;
   if Length(s) = 0 then
      WebApplication.ShowMessage("Please enter your name.")
   else
   begin
      WebApplication.ShowMessage("Hello, " + s +"!");
      editName.Text := "";
   end;
end;

For information about running the completed application, see Running the Completed Application.