'ItemIndex' is not a member of 'TRadioButton' 出錯

發表時間：2009-02-25 02:00:04

IP:118.161.xxx.xxx 訂閱

最近剛接觸BCB，這個程式碼是照課本上打下來的但是一直出現
[C Error] Unit1.cpp(56): E2316 'ItemIndex' is not a member of 'TRadioButton'
拜請過GOOGLE大神了，還是無解。
幫忙解惑一下，感恩

#include
#pragma hdrstop

#include "Unit1.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)
#pragma resource "*.dfm"
TForm1 *Form1;
HANDLE hComm;
boolean DTRState;
//---------------------------------------------------------------------------
__fastcall TForm1::TForm1(TComponent* Owner)
: TForm(Owner)
{
}
//---------------------------------------------------------------------------

void __fastcall TForm1::Button3Click(TObject *Sender)
{
String Temp;
char *SendData;
int in;
unsigned long lrc,BS;
if (hComm==0) return;
Temp = mSend->Text;
SendData= Temp.c_str();
BS =Temp.Length();
WriteFile(hComm,SendData,BS,&lrc,NULL);
}
//---------------------------------------------------------------------------

void __fastcall TForm1::Button4Click(TObject *Sender)
{
String Temp;
char inbuff[1024];
DWORD nBytesRead,dwEvent,dwError;
COMSTAT cs;
ClearCommError(hComm,&dwError,&cs);
if (cs.cbInQue > sizeof(inbuff))
{
PurgeComm(hComm,PURGE_RXCLEAR);
return;
}
ReadFile(hComm,inbuff,cs.cbInQue,&nBytesRead,NULL);
inbuff[cs.cbInQue]='\0';
mReceive->Text=inbuff;
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button1Click(TObject *Sender)
{
char *ComNo;
DCB dcb;
String Temp;
Temp="COM" IntToStr(rdCOM->ItemIndex 1); ///這行出問題
//轉換指標型態
ComNo=Temp.c_str();
hComm=CreateFile(ComNo,GENERIC_READ|GENERIC_WRITE,0,NULL,OPEN_EXISTING,0,0);
if (hComm==INVALID_HANDLE_VALUE)
{
MessageBox(0,"開啟通訊阜錯誤!!","Comm Error",MB_OK);
return;
}
GetCommState(hComm,&dcb);
dcb.BaudRate= CBR_9600;
dcb.ByteSize=8;
dcb.Parity=NOPARITY;
dcb.StopBits=ONESTOPBIT;
if (!SetCommState(hComm,&dcb) )
{ MessageBox(0,"開啟通訊阜錯誤!!","Comm Error",MB_OK);
CloseHandle(hComm);
return;
}
}
//---------------------------------------------------------------------------
void __fastcall TForm1::Button2Click(TObject *Sender)
{
if (hComm !=INVALID_HANDLE_VALUE) CloseHandle(hComm);
exit(EXIT_SUCCESS);
}

補上.h宣告
//---------------------------------------------------------------------------

#ifndef Unit1H
#define Unit1H
//---------------------------------------------------------------------------
#include Classes.hpp>
#include Controls.hpp>
#include StdCtrls.hpp>
#include Forms.hpp>
//---------------------------------------------------------------------------
class TForm1 : public TForm
{
__published: // IDE-managed Components
TRadioButton *rdCOM;
TRadioButton *rdCOM2;
TMemo *mSend;
TMemo *mReceive;
TButton *Button1;
TButton *Button2;
TButton *Button3;
TButton *Button4;
void __fastcall Button3Click(TObject *Sender);
void __fastcall Button4Click(TObject *Sender);
void __fastcall Button1Click(TObject *Sender);
void __fastcall Button2Click(TObject *Sender);
private: // User declarations
public: // User declarations
__fastcall TForm1(TComponent* Owner);
};
//---------------------------------------------------------------------------
extern PACKAGE TForm1 *Form1;
//---------------------------------------------------------------------------
#endif

因為是新手又是自學，後來發現是元件選錯造成的。要選用radiogroup 而不是radiobutton

編輯記錄

stelliver 重新編輯於 2009-02-25 16:52:53，註解無‧
stelliver 重新編輯於 2009-02-25 16:54:18，註解無‧
stelliver 重新編輯於 2009-02-25 18:19:42，註解無‧