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连接sql server的公共类(vb.net)
*************************************************************************
'//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
'*******************************************************************************
