Home > Database > Mysql Tutorial > 使用MyDBase连接SQL Server

使用MyDBase连接SQL Server

WBOY
Release: 2016-06-07 14:53:24
Original
1376 people have browsed it

使用ADO.NET自定义类MyDBase连接SQL Server数据库 using System; using System.Data; using System.Data.SqlClient; public class MyDBase { bool ECode=false; string ES; SqlConnection cn=new System.Data.SqlClient.SqlConnection(); DataSet Rs; publ

  使用ADO.NET自定义类MyDBase连接SQL Server数据库

  using System;

  using System.Data;

  using System.Data.SqlClient;

  public class MyDBase

  {

  bool ECode=false;

  string ES;

  SqlConnection cn=new System.Data.SqlClient.SqlConnection();

  DataSet Rs;

  public MyDBase(string MyDBServerName,string MyDataBaseName)

  {

  ECode = false;

  cn.ConnectionString="workstation id="+MyDBServerName+";packet size=4096;integrated security=SSPI;data source="+MyDBServerName+";persist security info=False;initial catalog="+MyDataBaseName;

  try

  {

  cn.Open();

  }

  catch (Exception e)

  {

  ES = e.Message;

  ECode = true;

  }

  }

  public MyDBase(string MyDBServerName, string MyDataBaseName, string sUerName, string sPasswd)

  {

  ECode = false;

  string sConn = "workstation id=" + MyDBServerName + ";packet size=4096;user id=" + sUerName + ";pwd=" + sPasswd + ";data source=" + MyDBServerName + ";persist security info=False;initial catalog=" + MyDataBaseName;

  cn.ConnectionString = sConn;

  try

  {

  cn.Open();

  }

  catch (Exception e)

  {

  ES = e.Message;

  ECode = true;

  }

  }

  public DataSet GetRecordset(string Sqls)

  {

  SqlCommand sqlCmd= new SqlCommand();

  sqlCmd.Connection = cn;

  sqlCmd.CommandText = Sqls;

  try

  {

  SqlDataAdapter adp = new SqlDataAdapter(sqlCmd);

  Rs = new DataSet();

  adp.Fill(Rs);

  }

  catch (Exception e)

  {

  ES = e.Message;

  ECode = true;

  return null;

  }

  return (Rs);

  }

  public int ExecuteSQLScalar(string Sqls)

  {

  string s;

  SqlCommand sqlCmd= new SqlCommand();

  sqlCmd.Connection = cn;

  sqlCmd.CommandText = Sqls;

  sqlCmd.CommandType = CommandType.Text;

  try

  {

  s = sqlCmd.ExecuteScalar().ToString();

  }

  catch (Exception e)

  {

  ES = e.Message;

  ECode = true;

  return -1;

  }

  return(int.Parse(s));

  }

  public string ExecuteSQLScalarTOstring(string Sqls)

  {

  string s;

  SqlCommand sqlCmd = new SqlCommand();

  sqlCmd.Connection = cn;

  sqlCmd.CommandText = Sqls;

  sqlCmd.CommandType = CommandType.Text;

  try

  {

  s = sqlCmd.ExecuteScalar().ToString();

  }

  catch (Exception e)

  {

  ES = e.Message;

  ECode = true;

  return "-1";

  }

  return s;

  }

  public string ExecuteSQLWithTrans(string Sqls)

  {

  string s;

  SqlTransaction myTrans;

  myTrans=cn.BeginTransaction();

  SqlCommand sqlCmd= new SqlCommand();

  sqlCmd.Connection = cn;

  sqlCmd.CommandText = Sqls;

  sqlCmd.CommandType = CommandType.Text;

  sqlCmd.Transaction =myTrans;

  sqlCmd.ExecuteNonQuery();

  //Sqls="SELECT @@IDENTITY AS ID";

  sqlCmd.CommandText =Sqls;

  try

  {

  s = sqlCmd.ExecuteScalar().ToString();

  }

  catch (Exception e)

  {

  ES = e.Message;

  ECode = true;

  myTrans.Commit();

  return "";

  }

  myTrans.Commit();

  return(s);

  }

  public void ExecuteSQL(string Sqls)

  {

  SqlCommand sqlCmd= new SqlCommand();

  sqlCmd.Connection = cn;

  sqlCmd.CommandText = Sqls;

  sqlCmd.CommandType = CommandType.Text;

  try

  {

  sqlCmd.ExecuteNonQuery();

  }

  catch (Exception e)

  {

  ES = e.Message;

  ECode = true;

  }

  }

  public SqlDataReader DBDataReader(string Sqls)

  {

  SqlCommand sqlCmd= new SqlCommand();

  sqlCmd.Connection = cn;

  sqlCmd.CommandText = Sqls;

  sqlCmd.CommandType = CommandType.Text;

  try

  {

  return sqlCmd.ExecuteReader(CommandBehavior.CloseConnection);

  }

  catch (Exception e)

  {

  ES = e.Message;

  ECode = true;

  return null;

  }

  }

  public void DBClose()

  {

  try

  {

  cn.Close();

  }

  catch (Exception e)

  {

  ES = e.Message;

  ECode = true;

  }

  }

  public bool ErrorCode()

  {

  return ECode;

  }

  public string ErrMessage()

  {

  return ES;

  }

  ~MyDBase()

  {

  //if (cn.State==ConnectionState.Open ) cn.Close();

Related labels:
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template