连接SQL SERVER的公共类

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