sdrkbhdlg.cpp

这是一套学校设备管理系统的源码 里面有树形结构使用的很棒的方法

// sdrkbhdlg.cpp : implementation file
//

#include "stdafx.h"
#include "xxgl.h"
#include "sdrkbhdlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// Csdrkbhdlg dialog
static int cur_focus;

switch_to_english_mode(CWnd *wnd);
switch_to_chinese_mode(CWnd *wnd);
Set_to_item_end(CWnd *wd,int id);

Csdrkbhdlg::Csdrkbhdlg(CWnd* pParent /*=NULL*/)
	: CDialog(Csdrkbhdlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(Csdrkbhdlg)
	m_jsrkbh = _T("");
	m_qsrkbh = _T("");
	//}}AFX_DATA_INIT
	cur_focus = 0;
}


void Csdrkbhdlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(Csdrkbhdlg)
	DDX_Text(pDX, IDC_jsrkbh, m_jsrkbh);
	DDX_Text(pDX, IDC_qsrkbh, m_qsrkbh);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(Csdrkbhdlg, CDialog)
	//{{AFX_MSG_MAP(Csdrkbhdlg)
	ON_EN_CHANGE(IDC_jsrkbh, OnChangejsrkbh)
	ON_EN_CHANGE(IDC_qsrkbh, OnChangeqsrkbh)
	ON_EN_SETFOCUS(IDC_jsrkbh, OnSetfocusjsrkbh)
	ON_EN_SETFOCUS(IDC_qsrkbh, OnSetfocusqsrkbh)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// Csdrkbhdlg message handlers

void Csdrkbhdlg::OnChangejsrkbh() 
{
	// TODO: If this is a RICHEDIT control, the control will not
	// send this notification unless you override the CDialog::OnInitDialog()
	// function and call CRichEditCtrl().SetEventMask()
	// with the ENM_CHANGE flag ORed into the mask.
	
	// TODO: Add your control notification handler code here
	char buf[20];

	GetDlgItemText(IDC_jsrkbh,buf,20);

    int l,i;
    l = strlen(buf);
	if (l > 6){
		buf[6] = 0;
		SetDlgItemText(IDC_jsrkbh,buf);
		Set_to_item_end(this,IDC_jsrkbh);
    }
	if (l > 0){
		for (i=0;i<l;i++){
	      if ((buf[i] < '0')||(buf[i] > '9')){
		    buf[i] = 0;
		    SetDlgItemText(IDC_jsrkbh,buf);
		    Set_to_item_end(this,IDC_jsrkbh);
		  }
		}
	}
	
}

void Csdrkbhdlg::OnChangeqsrkbh() 
{
	// TODO: If this is a RICHEDIT control, the control will not
	// send this notification unless you override the CDialog::OnInitDialog()
	// function and call CRichEditCtrl().SetEventMask()
	// with the ENM_CHANGE flag ORed into the mask.
	
	// TODO: Add your control notification handler code here
	char buf[20];

	GetDlgItemText(IDC_qsrkbh,buf,20);

    int l,i;
    l = strlen(buf);
	if (l > 6){
		buf[6] = 0;
		SetDlgItemText(IDC_qsrkbh,buf);
		Set_to_item_end(this,IDC_qsrkbh);
    }
	if (l > 0){
		for (i=0;i<l;i++){
	      if ((buf[i] < '0')||(buf[i] > '9')){
		    buf[i] = 0;
		    SetDlgItemText(IDC_qsrkbh,buf);
		    Set_to_item_end(this,IDC_qsrkbh);
		  }
		}
	}
	
}

void Csdrkbhdlg::OnOK() 
{
	// TODO: Add extra validation here
	char buf[20];
	int bt,et;

	CWnd *wn_qsrkbh;
	CWnd *wn_jsrkbh;
	CWnd *wn_ok;
	CWnd *wn_cur;

	wn_qsrkbh = GetDlgItem(IDC_qsrkbh);
	wn_jsrkbh = GetDlgItem(IDC_jsrkbh);
	wn_ok = GetDlgItem(IDOK);
	wn_cur = GetFocus();
	if (wn_cur->m_hWnd != wn_ok->m_hWnd){
	  if (cur_focus == 1){
		wn_jsrkbh->SetFocus();
		return ;
	  }
	}

	GetDlgItemText(IDC_qsrkbh,buf,20);
    if (strlen(buf) > 10){
		MessageBox("起始入库编号错误.",MB_OK);
        wn_qsrkbh->SetFocus();
		return;
    }
	GetDlgItemText(IDC_jsrkbh,buf,20);
    if (strlen(buf) > 10){
		MessageBox("结束入库编号错误.",MB_OK);
        wn_jsrkbh->SetFocus();
		return;
    }
	GetDlgItemText(IDC_qsrkbh,buf,20);
	bt = atoi(buf);
	GetDlgItemText(IDC_jsrkbh,buf,20);
	et = atoi(buf);
	if ((bt > et)&&(bt != 0)&&(et != 0)){
		MessageBox("输入的起始编号大于结束编号,请重新输入.","",MB_OK);
        wn_qsrkbh->SetFocus();
		return;
    }
	CDialog::OnOK();
}

void Csdrkbhdlg::OnSetfocusjsrkbh() 
{
	// TODO: Add your control notification handler code here
	CWnd *wnd;

	wnd = GetDlgItem(IDC_jsrkbh);
    switch_to_english_mode(wnd);
    cur_focus = 2;
}

void Csdrkbhdlg::OnSetfocusqsrkbh() 
{
	// TODO: Add your control notification handler code here
	CWnd *wnd;

	wnd = GetDlgItem(IDC_qsrkbh);
    switch_to_english_mode(wnd);
	cur_focus = 1;
}