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连接SQL SERVER的公共类(VB.NET)

 2003-12-29 17:49:52 来源:WEB开发网   
核心提示:*'//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 de

*************************************************************************
'//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

'*******************************************************************************

Tags:连接 SQL SERVER

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