当前位置: 首页 > 图文教程 > 网络编程 > ASP.NET > asp.net(C#) Access 数据操作类

ASP.NET
asp.net GridView控件中模板列CheckBox全选、反选、取消
asp.net GridView 删除时弹出确认对话框(包括内容提示)
asp.net DropDownList 三级联动下拉菜单实现代码
asp DataTable添加列和行的三种方法
Asp.net 页面调用javascript变量的值
asp.net 长文章通过设定的行数分页
asp.net 定时间点执行任务的简易解决办法
asp.net 页面延时五秒,跳转到另外的页面
asp.net 动态输出透明gif图片
asp.net DataList与Repeater用法区别
asp.net Javascript获取CheckBoxList的value
asp.net程序在调式和发布之间图片路径问题的解决方法
asp.net下生成英文字符数字验证码的代码
asp.net 页面版文本框智能提示JSCode (升级版)
ASP.NET URL伪静态重写实现方法
ASP.NET 2.0 中Forms安全认证
asp.net 动态添加多个用户控件
asp.net Repeater显示父子表数据,无闪烁
asp.net 无法获取的内部内容,因为该内容不是文本 的解决方法
asp.net GridView排序简单实现

ASP.NET 中的 asp.net(C#) Access 数据操作类


出处:互联网   整理: 软晨网(RuanChen.com)   发布: 2009-09-13   浏览: 185 ::
收藏到网摘: n/a

asp.net(C#) Access 数据操作类 实现代码,有需要这方面的朋友可以熟悉下。
复制代码 代码如下:

using System;
using System.Configuration;
using System.Data;
using System.Data.OleDb;
using System.Xml;
using System.Collections;
namespace Website.Command
{
/// <summary>
/// WSplus 的摘要说明。
/// </summary>
public class AccessClass : System.Web.UI.Page
{
private static OleDbConnection sconn = null;
public static string _returnValue = "0";
public WSplus()
{
//
// TODO: 在此处添加构造函数逻辑
//
sconn = new OleDbConnection("Provider="Microsoft.Jet.OLEDB.4.0;Data" Source=" + Server.MapPath("/..db.mdb") + ";");
}
/// <summary>
///开启数据
/// </summary>
private static void connOpen()
{
if (sconn.State="=ConnectionState.Closed)"
try
{
sconn.Open();
}
catch (Exception ex)
{
throw new Exception("数据库初始化错误!!!"+ex.Message);
}
}
/// <summary>
/// 关闭数据库
/// </summary>
public void connClose()
{
if (sconn.State ="=" ConnectionState.Open)
try
{
sconn.Close();
}
catch (Exception ex)
{
throw new Exception("OleDb Close Error!"+ex.Message);
}
}
/// <summary>
/// 存储过程型CMD初始化!
/// </summary>
/// <param name="ht"></param>
/// <param name="sCmd"></param>
/// <param name="proc"></param>
private static void ConfigCMD(Hashtable ht,OleDbCommand sCmd,string sqls)
{
if (sCmd ="=" null) throw new ArgumentException("sCmd未初始化");
if (ht != null && ht.Count != 0)
{
IDictionaryEnumerator items = ht.GetEnumerator();
while (items.MoveNext())
sCmd.Parameters.Add(MakeParam(items.Key.ToString(),items.Value.ToString()));
}
sCmd.Connection = sconn;
sCmd.CommandText = sqls;
}
private static void ConfigCMD(ArrayList alist,OleDbCommand sCmd,string sqls)
{
if (sCmd ="=" null) throw new ArgumentException("sCmd未初始化");
if (alist != null && alist.Count != 0)
{
foreach (object items in alist)
{
Command.Model.typeFiles cmt = (Command.Model.typeFiles)items;
sCmd.Parameters.Add(MakeParam(cmt.Fkey.ToString(),cmt.Fvalue1.ToString(),cmt.Fvalue2.ToString()));
}
}
sCmd.Connection = sconn;
sCmd.CommandText = sqls;
}
private static OleDbParameter MakeParam(string key,string value)
{
return new OleDbParameter(key,value);
}
private static OleDbParameter MakeParam(string key,string F1,string F2)
{
OleDbParameter par = null;
if (F2.ToUpper() ="=" "STRING")
{
par = new OleDbParameter(key,OleDbType.VarChar);
}
else if (F2.ToUpper() ="=" "INTEGER")
{
par = new OleDbParameter(key,OleDbType.Integer);
}
else if (F2.ToUpper() ="=" "LSTRING")
{
par = new OleDbParameter(key,OleDbType.LongVarChar);
}
// try
// {
par.Value = F1;
// }
// catch(Exception e)
// {
// throw new Exception(e.Message + " " + key + " " + F1 + " " + F2);
// }
return par;
}
public void ExecConfig(Hashtable ht,string sqls)
{
OleDbCommand cmd="new OleDbCommand();
connOpen();
ConfigCMD(ht,cmd,sqls);
ExecuteNonQuery(cmd);
}
public void ExecConfig(ArrayList alist,string sqls)
{
OleDbCommand cmd="new OleDbCommand();
connOpen();
ConfigCMD(alist,cmd,sqls);
ExecuteNonQuery(cmd);
}
/// <summary>
/// 数据操作
/// </summary>
/// <param name="cmd"></param>
private static void ExecuteNonQuery(OleDbCommand cmd)
{
Command.AccessClass cw = new AccessClass();
try
{
_returnValue = cmd.ExecuteNonQuery().ToString();
}
catch (Exception e) {throw new Exception("Run Exec Error!"+e.Message);}
finally
{
cmd.Parameters.Clear();
cw.connClose();
}
}
/// <summary>
/// sql语句型datatable
/// </summary>
/// <param name="sqls"></param>
/// <returns></returns>
public DataTable ReturnDatatableBySql(Hashtable ht,string sqls)
{
DataTable dt="new DataTable();
OleDbCommand cmd="new OleDbCommand();
ConfigCMD(ht,cmd,sqls);
OleDbDataAdapter sda="new OleDbDataAdapter(cmd);
sda.Fill(dt);
cmd.Parameters.Clear();
return dt;
}
public OleDbDataReader getReader(Hashtable ht,string sqls)
{
connOpen();
OleDbCommand cmd="new OleDbCommand();
ConfigCMD(ht,cmd,sqls);
OleDbDataReader reader = cmd.ExecuteReader();
return reader;
//reader.Close();
//cmd.Parameters.Clear();
//connClose();
}
public OleDbDataReader getReader(ArrayList alist,string sqls)
{
connOpen();
OleDbCommand cmd="new OleDbCommand();
ConfigCMD(alist,cmd,sqls);
OleDbDataReader reader = cmd.ExecuteReader();
return reader;
//reader.Close();
//cmd.Parameters.Clear();
//connClose();
}
public string ReturnValue
{
get
{
return _returnValue;
}
set
{
_returnValue = value;
}
}
}
}
"