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连接SQL SERVER的公共类 (转)

原创 数据库开发技术 作者:worldblog 时间:2007-12-12 10:14:43 0 删除 编辑
连接SQL SERVER的公共类 (转)[@more@]

'*****************************************************************************************************
'//开始日期:2002年5月27日
'//结束日期:2002年5月27日
'*****************************************************************************************************
Option Explicit On
'Option Strict On
'//***************************************************************************************************
Imports System.Data.sqlClient

'//***************************************************************************************************
'//Begin defined namespace
Namespace Sunerp.CommClass.Comm

  '//Defined Structure  PublicApplicationVal
  '//Structure descriptoin
  '//本结构存取 数据库服务器名(dbserver)、数据库用户ID(UserId)、
  '//数据库用户密码(UserPWD)、数据库名(dbase),为联接数据库提供参数。
  '//为了满足某些简单查询的需要,提供了扩展的变量 常用表名(DBTable)、
  '//查询字段名(QueryFieldName)、查询字段值

  '//Begin define Structure PublicApplicationVal
  Public Structure PublicApplicationVal
  ' Public Dbserver, UserId UserPWD Dbase DBTable Account.
  Public Dbserver As String
  Public UserId As String
  Public UserPWD As String
  Public Dbase As String
  Public DBTable As String
  Public QueryFieldVale As String
  Public QueryFieldName As String
  End Structure
  '//End define Structure PublicApplicationVal
  '//***************************************************************************************************  '//***************************************************************************************************
  '//Begin defined Class
  Public Class DBaseBindComm
  ''***********************************************************************
  ''//**定义连接SQL SERVER Database的通用函数**//
  '//本函数创建一个到指定数据库的连接对象 SqlConnection
  '//本函数有1个参数,IPublicApplication 为公共数据结构 PublicApplicationVal,

  '//Begin define Function LinkedSqlServer
  Public Overloads Function LinkedSqlServer() As System.Data.SqlClient.SqlConnection

  Dim strconn As String
  Dim conn As New SqlConnection()
  strconn = "server=" & "erp" & _
  ";user id=" & "erpsa" & _
  ";password=" & "erpsa" & _
  ";database=" & "erpdata" & ";"

  Try
  conn = New SqlConnection(strconn)
  conn.Open()
  StateVal = True
  LinkedSqlServer = conn
  Catch ex As Exception
  ' MsgBox(ex.ToString)
  StateVal = False
  LinkedSqlServer = Nothing
  Exit Function
  End Try
  End Function


  ''End defined LinkedSqlServer
  ''***********************************************************************

  ''***********************************************************************
  ''//**定义连接SQL Server Database的通用函数**//
  '//本函数创建一个到指定数据库的连接对象 SqlConnection
  '//本函数有1个参数,IPublicApplication 为公共数据结构 PublicApplicationVal,

  '//Begin define Function LinkedSqlServer
  Public Overloads Function LinkedSqlServer( _
  ByVal IPublicApplication As PublicApplicationVal) _
  As System.Data.SqlClient.SqlConnection

  Dim strconn As String
  Dim conn As New SqlConnection()
  strconn = "server=" & IPublicApplication.Dbserver & _
  ";user id=" & IPublicApplication.UserId & _
  ";password=" & IPublicApplication.UserPWD & _
  ";database=" & IPublicApplication.Dbase & ";"

  Try
  conn = New SqlConnection(strconn)
  conn.Open()
  StateVal = True
  LinkedSqlServer = conn
  Catch ex As Exception
  ' MsgBox(ex.ToString)
  StateVal = False
  LinkedSqlServer = Nothing
  Exit Function
  End Try
  End Function
  ''End defined LinkedSqlServer
  ''***********************************************************************


  ''定义类DBaseBindComm的ReadOnly属性State(创建连接的状态)
  ''True(创建成功),False(创建失败)
  Private StateVal As Boolean
  Public ReadOnly Property State() As Boolean
  Get
  Return StateVal
  End Get
  End Property

  End Class

  Public Class OrganComm

  '//Defined Structure  PublicOrganIDStructure
  '//Structure descriptoin
  '//本结构存取 企业组织机构Id
  '//顶层(DeptTopID)、一级(DeptMidId),二级ID(DeptLowId) 

  '//Begin define Structure PublicOrganIDStructure
  Public Structure PublicOrganIDStructure
  Public DeptTopID As String
  Public DeptMidId As String
  Public DeptLowId As String
  End Structure
  '//End define Structure PublicOrganIDStructure
  '//***************************************************************************************************  ''***********************************************************************
  ''//**定义连接SQL Server Database的通用函数**//
  '//本函数创建一个到指定数据库的连接对象 SqlConnection
  '//本函数有1个参数,IPublicApplication 为公共数据结构 PublicApplicationVal,

  '//Begin define Function IParseDeptOrgid
  Public Function IParseDeptOrgid(ByVal ideptOrgid As String) As PublicOrganIDStructure
  Dim OrganID As New PublicOrganIDStructure()
  Dim Orgid As String

  IDeptOrgid = Trim(IDeptOrgid)
  Orgid = microsoft.VisualBasic.Left(Trim(IDeptOrgid), 12)

  OrganID.DeptTopID = Microsoft.VisualBasic.Left(Orgid, 6)
  OrganID.DeptMidId = Microsoft.VisualBasic.Right(Orgid, 6)
  OrganID.DeptLowId = Microsoft.VisualBasic.Right(IDeptOrgid, 6)

  IParseDeptOrgid = OrganID
  End Function
  '//End define Function IParseDeptOrgid

  End Class


End Namespace
'***************************************************************************************************


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