ADO数据库连接Access
创建基于对话框的应用程序ADO,向对话框中添加一个列表视图控件,并为其添加变量m_Grid
第一步:ADO对象的导入
在StdAfx.h头文件中:
// stdafx.h : include file for standard system include files,
// or project specific include files that are used frequently, bu
// are changed infrequently
//
#if !defined(AFX_STDAFX_H__D5ADC0DF_B5B2_4973_A035_4F2F1585998F__INCLUDED_)
#define AFX_STDAFX_H__D5ADC0DF_B5B2_4973_A035_4F2F1585998F__INCLUDED_
#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
#define VC_EXTRALEAN // Exclude rarely-used stuff from Windows headers
#include <afxwin.h> // MFC core and standard components
#include <afxext.h> // MFC extensions
#include <afxdisp.h> // MFC Automation classes
#include <afxdtctl.h> // MFC support for Internet Explorer 4 Common Controls
#ifndef _AFX_NO_AFXCMN_SUPPORT
#include <afxcmn.h> // MFC support for Windows Common Controls
#endif // _AFX_NO_AFXCMN_SUPPORT
//ADO对象的导入代码
#import"C:\Program Files\Common Files\System\ado\msado15.dll"
no_namespace rename("EOF","adoEOF")rename("BOF","adoBOF")
//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.
#endif // !defined(AFX_STDAFX_H__D5ADC0DF_B5B2_4973_A035_4F2F1585998F__INCLUDED_)
第二步:初始化COM环境
BOOL CADOApp::InitInstance()
{
AfxEnableControlContainer();
AfxOleInit();//或者::CoInitialize(NULL);
··················
··················
return FALSE;
}
第三步:连接数据库
相关文档:
打开 OpenDataAccessPage:在页视图或设计视图中打开数据访问页
OpenForm:在窗体视图、窗体设计视图、打印预览或数据表视图中打开窗体
OpenModule:在指定过程的设计视图中打开指定的模块
OpenQuery:打开选择查询或交叉表查询
OpenReport:在设计视图或打印预览视图中打开报表或立即打印该报表 ......
'创建数据库
Private Sub Create(ByVal mdbPath As String)
If File.Exists(mdbPath) Then
Throw New Exception("目标数据库已经存在,无法创建")
......
Take Equity Collection System as an example, Some other office collegues want to access it from home without VPN, The way to check is:
1. Check if it's limited in network, this needs to confirm with network people
2. If the step 1 passed, get the external IP address of the system, map ......
string sql = "select a.orderId,a.UserName,b.CodeValue as Delivery ,a.DeliveryAddress,a.PhoneNum,c.CodeValue as Payment,d.CodeValue as OrderStatus,d.CodeValue as OrderStatusID,a.OrderTime,a.Merchant from (( m_Order a ";
sql += " left j ......
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Data.OleDb;
namespace AddressList
{
public partial class FrmAccessUse : Form
{
public Fr ......