🚀 go-pugleaf

The program is login screen and then press the login value to
database->params but cannot access. First, database->LoginPrompt = false
The program are following , pls help me!

#include <vcl.h>
#pragma hdrstop

#include "Unit1.h"
#include "Unit2.h"

//--------------------------------------------------------------------------
-
#pragma package(smart_init)
#pragma resource "*.dfm"
TfrmLogin *frmLogin;
int passcount = 0;

//--------------------------------------------------------------------------
-
__fastcall TfrmLogin::TfrmLogin(TComponent* Owner)
        : TForm(Owner)
{

}
//--------------------------------------------------------------------------
-
void __fastcall TfrmLogin::OKClick(TObject *Sender)
{

    if(++passcount==3) {
    MessageBox(NULL, "Incorrect Login", "Warning", MB_OK);
    Close();
  }

  try {

    frmMain->Database1->Params->Values["User Name"]=Edit1->Text;
    frmMain->Database1->Params->Values["Password"]=Edit2->Text;
    frmMain->Database1->Connected = true;
    frmLogin->Hide();
    frmMain->ShowModal();
    Application->Terminate();
  } catch(...) {
    MessageBeep(MB_ICONHAND);
    ShowMessage("Input error, try again");
    Edit1->SetFocus();
    }
}