stuseldlg.cpp

VC++做的学校收费管理系统,很有参考价值,附上源码与说明文档.

// StuSelDlg.cpp : implementation file
//

#include "stdafx.h"
#include "ChargeManage.h"
#include "StuSelDlg.h"
#include "DepInfo.h"

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

/////////////////////////////////////////////////////////////////////////////
// CStuSelDlg dialog


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


void CStuSelDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CStuSelDlg)
	DDX_Control(pDX, IDC_TREE1, m_tree);
	DDX_Control(pDX, IDC_ADODC1, m_Adodc);
	DDX_Control(pDX, IDC_DATALIST1, m_datalist);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CStuSelDlg, CDialog)
	//{{AFX_MSG_MAP(CStuSelDlg)
	ON_NOTIFY(NM_CLICK, IDC_TREE1, OnClickTree1)
	ON_NOTIFY(TVN_SELCHANGED, IDC_TREE1, OnSelchangedTree1)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CStuSelDlg message handlers
BOOL CStuSelDlg::OnInitDialog() 
{
	CDialog::OnInitDialog();

	// TODO: Add extra initialization here
	//装入部门信息
	dep.LoadDep();

	//添加根节点
	m_treeImageList.Create(16,16,FALSE,1,0);  //创建CImageList控件
	//装入ICON资源
	HICON hIcon = ::LoadIcon(AfxGetResourceHandle(), MAKEINTRESOURCE(IDI_ICON1));
	m_treeImageList.Add(hIcon);  //将ICON资源添加到CImageList控件中
	//将CImageList控件与Tree控件相关联	
	m_tree.SetImageList(&m_treeImageList, LVSIL_NORMAL);
	m_root = m_tree.InsertItem("院系信息");  //添加根节点
	//调用AddtoTree() 函数，将所有院系信息添加到Tree控件中	
	AddtoTree(m_root, 0);
	m_tree.Expand(m_root, TVE_EXPAND); //展开根节点
	//选中根节点
	m_tree.SelectItem(m_root);

	UpdateData(FALSE);
	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}

void CStuSelDlg::AddtoTree(HTREEITEM m_node, int UpperId)
{
	//使用递归方法将院系添加到TreeView控件中
	int i;
	HTREEITEM m_child;
	
	//依次访问dep对象中的院系数组，查找满足条件的记录添加到Tree控件中
	for(i=0; i<dep.a_UID.GetSize(); i++)
	{
		//@@@@ 打开a_UID数组中等于UpperId的元素
		//@@@@ 表明此元素为当前根节点的子节点，因此将其添加到Tree控件中，新节点为m_child
		//@@@@ 使用SetItemData()函数将院系编号值也保存在新节点中
		//@@@@ 以新节点为根节点，再次递归调用AddtoTree()函数，将其子节点添加到Tree控件中
		if (UpperId == atoi(dep.a_UID.GetAt(i)))
		{
			m_child = m_tree.InsertItem(dep.a_DepName.GetAt(i), m_node);
			m_tree.SetItemData(m_child, atol(dep.a_DepId.GetAt(i)));
			AddtoTree(m_child, atoi(dep.a_DepId.GetAt(i)));
		}
	}
}

void CStuSelDlg::RefreshList()
{
	UpdateData(TRUE);
	// 从选择的节点中获取部门信息
	long lDepId;
	HTREEITEM node;
	node = m_tree.GetSelectedItem();
	lDepId = m_tree.GetItemData(node);
	DepName = m_tree.GetItemText(node);	// 院系名称
	// 根据院系编号获取院系中的所有学生
	CString cDepId;
	cDepId.Format("%ld", lDepId);
	CString cSource = "SELECT * FROM Student WHERE DepId = " + cDepId;
	// 刷新数据源，从而更新学生列表	
	m_Adodc.SetRecordSource(cSource);
	m_Adodc.Refresh();
}

void CStuSelDlg::OnClickTree1(NMHDR* pNMHDR, LRESULT* pResult) 
{
	// TODO: Add your control notification handler code here
	RefreshList();
	*pResult = 0;
}

void CStuSelDlg::OnSelchangedTree1(NMHDR* pNMHDR, LRESULT* pResult) 
{
	NM_TREEVIEW* pNMTreeView = (NM_TREEVIEW*)pNMHDR;
	// TODO: Add your control notification handler code here
	RefreshList();	
	*pResult = 0;
}

void CStuSelDlg::OnOK() 
{
	// TODO: Add extra validation here
	if (m_datalist.GetText() == "")
	{
		MessageBox("请选择学生");
		return;
	}
	//设置StuId和Name变量，在其他模块中可以通过这两个变量获取选择的员工信息
	cStuId = m_datalist.GetBoundText();
	Name = m_datalist.GetText();

	CDialog::OnOK();
}