dlgdeltrain.cpp

简易火车售票系统

// DlgDeltrain.cpp : implementation file
//

#include "stdafx.h"
#include "Train.h"
#include "TrainSet.h"
#include "DlgDeltrain.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CDlgDeltrain dialog


CDlgDeltrain::CDlgDeltrain(CWnd* pParent /*=NULL*/)
	: CDialog(CDlgDeltrain::IDD, pParent)
{
	//{{AFX_DATA_INIT(CDlgDeltrain)
	m_deltrainno = _T("");
	//}}AFX_DATA_INIT
}


void CDlgDeltrain::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CDlgDeltrain)
	DDX_Text(pDX, IDC_DEL_TRAIN_NO, m_deltrainno);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CDlgDeltrain, CDialog)
	//{{AFX_MSG_MAP(CDlgDeltrain)
	ON_BN_CLICKED(IDC_DEL_USER_CANCEL, OnDelUserCancel)
	ON_BN_CLICKED(IDC_DEL_USER_OK, OnDelUserOk)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()



void CDlgDeltrain::OnDelUserCancel() 
{
	// TODO: Add your control notification handler code here
	CDialog::OnCancel();
	
}

void CDlgDeltrain::OnDelUserOk() 
{
	// TODO: Add your control notification handler code here
	UpdateData();
	CTrainSet set;
	CDatabase db;
	
 try
 {
	 if (set.IsOpen())
		 set.Close();
	 set.m_strFilter.Format("trainno='%s'",m_deltrainno);
	 set.Open(CRecordset::snapshot,NULL,CRecordset::none);
	 if(set.IsOpen()&&!set.IsEOF())
	 {
		 set.Delete();
		 if(set.IsOpen())
			 set.Close();
		 AfxMessageBox("删除成功!");
		 CDialog::OnOK();
	 }
	 else
	 {
		 if(set.IsOpen())
			 set.Close();
		 AfxMessageBox("该车次不存在，无法删除!");
		return;
		CDialog::OnCancel();
	 }
 }
	 catch(CDBException* pe)
	 {
		 pe->ReportError();
		 return;
	 }


	
	
}