dialog_traincourse.cpp

< Visual C+++SQL Server数据库开发与实例>>一书中的实例核心源程序提供了几个案例的编程源代码。

// DIALOG_TRAINCOURSE.cpp : implementation file
//

#include "stdafx.h"
#include "train.h"
#include "DIALOG_TRAINCOURSE.h"
#include "CourseInfo.h"
#include "DIALOG_APPISE.h"
#include "CourseSet.h"

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

/////////////////////////////////////////////////////////////////////////////
// CDIALOG_TRAINCOURSE dialog


CDIALOG_TRAINCOURSE::CDIALOG_TRAINCOURSE(CWnd* pParent /*=NULL*/)
	: CDialog(CDIALOG_TRAINCOURSE::IDD, pParent)
{
	//{{AFX_DATA_INIT(CDIALOG_TRAINCOURSE)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
}


void CDIALOG_TRAINCOURSE::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CDIALOG_TRAINCOURSE)
	DDX_Control(pDX, IDC_LIST1, m_content);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CDIALOG_TRAINCOURSE, CDialog)
	//{{AFX_MSG_MAP(CDIALOG_TRAINCOURSE)
	ON_BN_CLICKED(IDC_BUTTONADD, OnButtonadd)
	ON_BN_CLICKED(IDC_BUTTONDEL, OnButtondel)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDIALOG_TRAINCOURSE message handlers

void CDIALOG_TRAINCOURSE::OnButtonadd() 
{
	// TODO: Add your control notification handler code here
	m_database.Close();
	CCourseInfo m_courseinfo;
	m_courseinfo.m_database.Open(_T("train"));
	m_courseinfo.DoModal();
	RefreshData();
}

void CDIALOG_TRAINCOURSE::OnOK() 
{
	// TODO: Add extra validation here
	CDIALOG_APPISE m_apprisemanager;
	int i=m_content.GetSelectionMark();
	CString strSQL;
	if(i==-1){
		MessageBox("please choose a course first!");
	}
	else{
		m_apprisemanager.course_id=atoi(m_content.GetItemText(i,0));
		m_database.Close();
		m_apprisemanager.m_database.Open(_T("train"));
		m_apprisemanager.DoModal();
	}

}

BOOL CDIALOG_TRAINCOURSE::OnInitDialog() 
{
	CDialog::OnInitDialog();
	
	// TODO: Add extra initialization here
	m_content.InsertColumn(0,"课程号");
	m_content.InsertColumn(1,"课程类别");
	m_content.InsertColumn(2,"课程中文名称");
	m_content.InsertColumn(3,"课程英文名称");
	m_content.InsertColumn(4,"课程描述");
	m_content.InsertColumn(5,"课程学时");
	m_content.InsertColumn(6,"教材");
	m_content.InsertColumn(7,"等效课程");
	m_content.InsertColumn(8,"预修课程");
	m_content.InsertColumn(9,"初训/复训标志");
	m_content.InsertColumn(10,"开课部门");
	RECT rect;
	m_content.GetWindowRect(&rect);
	int wid = rect.right - rect.left;
	m_content.SetColumnWidth(0,wid/11);
	m_content.SetColumnWidth(1,wid/11);
	m_content.SetColumnWidth(2,wid/11);
	m_content.SetColumnWidth(3,wid/11);
	m_content.SetColumnWidth(4,wid/11);
	m_content.SetColumnWidth(5,wid/11);
	m_content.SetColumnWidth(6,wid/11);
	m_content.SetColumnWidth(7,wid/11);
	m_content.SetColumnWidth(8,wid/11);
	m_content.SetColumnWidth(9,wid/11);
	m_content.SetColumnWidth(10,wid/11);
	m_content.SetExtendedStyle(LVS_EX_FULLROWSELECT);
	RefreshData();	
	
	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}

void CDIALOG_TRAINCOURSE::RefreshData()
{
	if(!m_database.IsOpen()){
		m_database.Open(_T("train"));
	}
	m_content.DeleteAllItems();
	CCourseSet m_recordset(&m_database);
	CString strSQL;
	strSQL.Format("select * from COURSE");
	m_recordset.Open(AFX_DB_USE_DEFAULT_TYPE,strSQL);
	CDBVariant varValue;
	if(m_recordset.GetRecordCount()!=0) m_recordset.MoveFirst();
	char buf[20];
	int i=0;
	while(!m_recordset.IsEOF())
	{
		int temp=0;
		m_recordset.GetFieldValue(temp,varValue);
		sprintf(buf,"%d",varValue.m_iVal); 
		m_content.InsertItem(i,buf);
		m_recordset.GetFieldValue(1,varValue);
		m_content.SetItemText(i,1,varValue.m_pstring->GetBuffer(1));
		m_recordset.GetFieldValue(2,varValue);
		m_content.SetItemText(i,2,varValue.m_pstring->GetBuffer(1));
		m_recordset.GetFieldValue(3,varValue);
		m_content.SetItemText(i,3,varValue.m_pstring->GetBuffer(1));
		m_recordset.GetFieldValue(4,varValue);
		m_content.SetItemText(i,4,varValue.m_pstring->GetBuffer(1));
		m_recordset.GetFieldValue(5,varValue);
		sprintf(buf,"%d",varValue.m_iVal); m_content.SetItemText(i,5,buf);
		m_recordset.GetFieldValue(6,varValue);
		m_content.SetItemText(i,6,varValue.m_pstring->GetBuffer(1));
		m_recordset.GetFieldValue(7,varValue);
		sprintf(buf,"%d",varValue.m_iVal); m_content.SetItemText(i,7,buf);
		m_recordset.GetFieldValue(8,varValue);
		sprintf(buf,"%d",varValue.m_iVal); m_content.SetItemText(i,8,buf);
		m_recordset.GetFieldValue(9,varValue);
		sprintf(buf,"%d",varValue.m_chVal); m_content.SetItemText(i,9,buf);
		m_recordset.GetFieldValue(10,varValue);
		sprintf(buf,"%d",varValue.m_iVal); m_content.SetItemText(i,10,buf);
		m_recordset.MoveNext();
		i++;
	}
}

void CDIALOG_TRAINCOURSE::OnButtondel() 
{
	// TODO: Add your control notification handler code here
	int i=m_content.GetSelectionMark();
	CString strSQL;
	if(i==-1){
		MessageBox("please choose a record first!");
	}
	else{
		int keyid=atoi(m_content.GetItemText(i,0));
		strSQL.Format("delete from COURSE where COURSE_ID=%d",keyid);
		m_database.ExecuteSQL(strSQL);
		strSQL.Format("delete from COURSE_EVALUATION where COURSE_ID=%d",keyid);
		m_database.ExecuteSQL(strSQL);
		m_database.Close();
		RefreshData();
	}	
}

void CDIALOG_TRAINCOURSE::OnCancel() 
{
	// TODO: Add extra cleanup here
	m_database.Close();
	CDialog::OnCancel();
}