gradelistdlg.cpp

C++应用编程20例,各种小程序原代码都有

// GradeListDlg.cpp : implementation file
//

#include "stdafx.h"
#include "Classsystem.h"
#include "GradeListDlg.h"
#include "COMDEF.H"
#include "Columns.h"
#include "Column.h"
#include "_recordset.h"
#include "ADOConn.h"
//#include "CheckEditDlg.h"
#include "Grade.h"
#include "Users.h"

extern CUsers curUser;


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

/////////////////////////////////////////////////////////////////////////////
// CGradeListDlg dialog

CString aaa="";
CGradeListDlg::CGradeListDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CGradeListDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CGradeListDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
}


void CGradeListDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CGradeListDlg)
	DDX_Control(pDX, IDC_TREE1, m_tree);
	DDX_Control(pDX, IDC_ADODC1, m_adodc);
	DDX_Control(pDX, IDC_ADODC2, m_adodc2);
	DDX_Control(pDX, IDC_DATAGRID1, m_datagrid);
	DDX_Control(pDX, IDC_DATALIST1, m_datalist);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CGradeListDlg, CDialog)
	//{{AFX_MSG_MAP(CGradeListDlg)
	ON_NOTIFY(TVN_SELCHANGED, IDC_TREE1, OnSelchangedTree1)
	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)
	ON_BN_CLICKED(IDC_BUTTON2, OnButton2)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CGradeListDlg message handlers

BOOL CGradeListDlg::OnInitDialog() 
{
	CDialog::OnInitDialog();
	
	// TODO: Add extra initialization here

	//装入部门信息
	dep.Load_dep();
	
	//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("专业信息");  //添加根节点
	//调用AddtoTree() 函数，将所有部门信息添加到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);

	//设置员工状态属性
	//m_combo.SetCurSel(0);
	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}
void CGradeListDlg::AddtoTree(HTREEITEM m_node, int UpperId)
{
	//使用递归方法将部门添加到TreeView控件中
	int i;
	HTREEITEM m_child;
	//依次访问dep对象中的部门数组，查找满足条件的记录添加到Tree控件中
	for(i=0; i<dep.a_UpperId.GetSize(); i++)
	{
		//@@@@ 打开a_UpperId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()函数将部门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_UpperId.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 CGradeListDlg::Refresh_Data()
{
	UpdateData(TRUE);
	//从Tree控件中读取部门编号信息
	CString iDepId;
	HTREEITEM node;
	node = m_tree.GetSelectedItem();
	iDepId = m_tree.GetItemText(node);
	//根据部门编号设置SELECT语句
	CString cDepId;
	cDepId=iDepId;
	aaa=iDepId;//留给 datalist 用
	CString cSource = "SELECT * from xs where 专业名='" + cDepId+"'";
	
	m_adodc.SetRecordSource(cSource);
	m_adodc.Refresh();


}
void CGradeListDlg::Refresh_Data1()
{
	UpdateData(TRUE);
	//从Tree控件中读取部门编号信息
	CString iDepId;
//	HTREEITEM node;
//	node = m_tree.GetSelectedItem();
	iDepId = m_datalist.GetText();
	
	//根据部门编号设置SELECT语句
	CString cDepId;
	cDepId=iDepId;
	CString cSource = "select 专业名,课程名,avg(成绩) as '平均成绩',count(*) as '人数',sum(成绩) as '总分' from xs_kc,kc,xs where xs_kc.课程号=kc.课程号 and xs_kc.学号=xs.学号  and 专业名='" + aaa+"' group by 课程名,专业名";
	m_adodc2.SetRecordSource(cSource);
	m_adodc2.Refresh();

	//设置列宽度
	_variant_t vIndex;
	vIndex = long(0);
	m_datagrid.GetColumns().GetItem(vIndex).SetWidth(70);
	vIndex = long(1);
	m_datagrid.GetColumns().GetItem(vIndex).SetWidth(80);
	vIndex = long(2);
	m_datagrid.GetColumns().GetItem(vIndex).SetWidth(50);
	vIndex = long(3);
	m_datagrid.GetColumns().GetItem(vIndex).SetWidth(40);
	vIndex = long(4);
	m_datagrid.GetColumns().GetItem(vIndex).SetWidth(40);
//	vIndex = long(5);
//	m_datagrid.GetColumns().GetItem(vIndex).SetWidth(40);
//	vIndex = long(6);
//	m_datagrid.GetColumns().GetItem(vIndex).SetWidth(200);
}

void CGradeListDlg::OnOK() 
{
	// TODO: Add extra validation here
	
//	CDialog::OnOK();
}

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

void CGradeListDlg::OnButton1() 
{
	// TODO: Add your control notification handler code here
    //取得当前选择的节点
	UpdateData(TRUE);
	HTREEITEM node;  //用于保存当前选择的节点
	node = m_tree.GetSelectedItem();  //取得当前选择的节点

	if(m_tree.GetItemData(node)==0)
	{
		MessageBox("没有选择专业！");
		return;
	}
	Refresh_Data1();
}

void CGradeListDlg::OnButton2() 
{
	// TODO: Add your control notification handler code here
	UpdateData(TRUE);
	//从Tree控件中读取部门编号信息
	CString iDepId;
//	HTREEITEM node;
//	node = m_tree.GetSelectedItem();
	if(m_datalist.GetText()=="")
	{
		MessageBox("没有选择姓名！");
		return;
	}
	iDepId = m_datalist.GetText();
	//根据部门编号设置SELECT语句
	CString cDepId;
	cDepId=iDepId;
	CString cSource = "select xs.学号,姓名,专业名,avg(成绩) as '平均分',sum(成绩) as '总成绩' from xs_kc,kc,xs where xs_kc.课程号=kc.课程号 and xs_kc.学号=xs.学号  and 专业名='" + aaa+"' and 姓名='"+cDepId+"'group by xs.学号,专业名,姓名";
	m_adodc2.SetRecordSource(cSource);
	m_adodc2.Refresh();

	//设置列宽度
	_variant_t vIndex;
	vIndex = long(0);
	m_datagrid.GetColumns().GetItem(vIndex).SetWidth(40);
	vIndex = long(1);
	m_datagrid.GetColumns().GetItem(vIndex).SetWidth(40);
	vIndex = long(2);
	m_datagrid.GetColumns().GetItem(vIndex).SetWidth(70);
	vIndex = long(3);
	m_datagrid.GetColumns().GetItem(vIndex).SetWidth(40);
	vIndex = long(4);
	m_datagrid.GetColumns().GetItem(vIndex).SetWidth(40);

}