types.cls

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VERSION 1.0 CLASS
BEGIN
  MultiUse = -1  'True
  Persistable = 0  'NotPersistable
  DataBindingBehavior = 0  'vbNone
  DataSourceBehavior  = 0  'vbNone
  MTSTransactionMode  = 0  'NotAnMTSObject
END
Attribute VB_Name = "BaseInfo"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = True
Attribute VB_PredeclaredId = False
Attribute VB_Exposed = False
Public Id As Long
Public BaseName As String
Public Flag As Integer

Public Sub Init()
  BaseName = ""
  Flag = 1
End Sub

'删除Type
Public Sub Delete(ByVal TmpId As Long)
  SqlStmt = "DELETE FROM BaseInfo WHERE Id=" + Trim(TmpId)
  SQLExt (SqlStmt)
End Sub

Public Function In_DB(ByVal TmpBaseName As String, ByVal TmpFlag As Integer) As Boolean
  Dim rs As New ADODB.Recordset
  
  SqlStmt = "SELECT * FROM BaseInfo WHERE BaseName='" _
          + Trim(TmpBaseName) + "' AND Flag=" + Trim(Str(TmpFlag))
  Set rs = QueryExt(SqlStmt)
  If rs.EOF = True Then
    In_DB = False
  Else
    In_DB = True
  End If
End Function

Public Function GetInfo(ByVal TmpId As Integer) As Boolean
  Dim rs As New ADODB.Recordset  '定义结果集对象
  
  '设置SELECT语句，读取编号为TmpId的记录
  SqlStmt = "SELECT * FROM BaseInfo WHERE Id=" + Trim(TmpId)
  '将结果集读取到rs中
  Set rs = QueryExt(SqlStmt)

  If rs.EOF Then
    '如果结果集为空，则初始化
    Init
    GetInfo = False
  Else
    '将结果集中的数据赋值到成员变量中
    If IsNull(rs.Fields(0)) Then   '类型编号
      Id = 0
    Else
      Id = rs.Fields(0)
    End If
   
    If IsNull(rs.Fields(1)) Then   '类型名称
      BaseName = ""
    Else
      BaseName = rs.Fields(1)
    End If
    If IsNull(rs.Fields(2)) Then  '种类编号
      Flag = 1
    Else
      Flag = rs.Fields(2)
    End If
    GetInfo = True
  End If
End Function

'插入分类
Public Sub Insert()
  SqlStmt = "INSERT INTO BaseInfo VALUES('" _
       + Trim(BaseName) + "'," + Trim(Flag) + ")"
  SQLExt (SqlStmt)
End Sub
'更新数据
Public Sub Update(ByVal TmpId As Long)
  SqlStmt = "UPDATE BaseInfo SET BaseName='" + Trim(BaseName) _
          + "' Where Id = " + Trim(Str(TmpId))
  SQLExt (SqlStmt)
End Sub