Сила тока, Ошибка [C++ Error] Unit1.cpp(24): E2314 Call of nonfunction

//---------------------------------------------------------------------------
#include <vcl.h>
#pragma hdrstop
 
#include "Unit1.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
        : TForm(Owner)
{
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button1Click(TObject *Sender)
{
   float u;
   float r;
   float i;
 
   if ( ((Edit1->Text).Length() == 0)
        ((Edit2->Text).Length() == 0))
   {
      MessageDlg("Nado vvesti napryazheniye i soprotivleniye",
               mtInformation, TMsgDlButtons() << mBox, 0);
      if ((Edit1->Text).Length() == 0)
          Edit1->SetFocus();
      else
          Edit2->SetFocus();
      return;
   };
 
   u = StrToFloat(Edit1->Text);
   r = StrToFloat(Edit2->Text);
 
   try
   {
      i = u/r
   }
   catch (EZeroDivide &e)
   {
      ShowMessage("Velechina soprotivleniya ne dolzhna byt' "
                  "ravna nulyu");
      Edit2->SetFocus();
      return;
   }
 
   Label4->Caption = "Òîê : " +
                     FloatToStrF(i,ffGeneral,7,2) + " À";
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Edit1KeyPress(TObject *Sender, char &Key)
{
  if ( ( Key >= '0') && ( Key <= '9') )
      return;
  if ( Key == DecimalSeparator)
  {
     if ( (Edit1->Text).Pos(DecimalSeparator) != 0 )
         Key = 0;
  return;
  }
 
  if (Key == VK_BACK)
      return;
 
  if ( Key == VK_RETURN)
  {
     Edit2->SetFocus();
     return;
  };
 
  Key = 0;
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Edit2KeyDown(TObject *Sender, WORD &Key,
      TShiftState Shift)
{
     if ( ( Key >= '0') && ( Key <= '9' ) )
         return;
 
     if ( Key == DecimalSeparator) {
        if ( (Edit2->Text).Pos(DecimalSeparator) != 0 )
            Key = 0;
        return;
     }
 
     if (Key == VK_BACK)
         return;
 
     if ( Key == VK_RETURN)
     {
        Button1->SetFocus();
        return;
     };
 
     Key = 0;
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button2Click(TObject *Sender)
{
     Form1->Close();
}
void __fastcall TFrom1::EditChange(TObject *Sender)
{
   Label4->Caption = "";
}
//---------------------------------------------------------------------------

   if ( ((Edit1->Text).Length() == 0) ||
        ((Edit2->Text).Length() == 0))