addadmin.frm

感觉还可以了 大家看看 指点下 有什么不足的地方,大家多多指教啊

VERSION 5.00
Begin VB.Form AddAdmin 
   Caption         =   "添加"
   ClientHeight    =   3135
   ClientLeft      =   60
   ClientTop       =   450
   ClientWidth     =   4680
   LinkTopic       =   "Form1"
   ScaleHeight     =   3135
   ScaleWidth      =   4680
   StartUpPosition =   3  'Windows Default
   Begin VB.Frame Frame1 
      Caption         =   "添加管理员"
      Height          =   2895
      Left            =   120
      TabIndex        =   0
      Top             =   120
      Width           =   4455
      Begin VB.CommandButton Command2 
         Cancel          =   -1  'True
         Caption         =   "取消"
         Height          =   495
         Left            =   2280
         TabIndex        =   6
         Top             =   2160
         Width           =   1695
      End
      Begin VB.CommandButton Command1 
         Caption         =   "确定"
         Default         =   -1  'True
         Height          =   495
         Left            =   240
         TabIndex        =   5
         Top             =   2160
         Width           =   1695
      End
      Begin VB.TextBox Pass 
         Appearance      =   0  'Flat
         Height          =   375
         IMEMode         =   3  'DISABLE
         Left            =   240
         PasswordChar    =   "#"
         TabIndex        =   4
         Top             =   1440
         Width           =   3735
      End
      Begin VB.TextBox User 
         Appearance      =   0  'Flat
         Height          =   375
         Left            =   240
         TabIndex        =   2
         Top             =   600
         Width           =   3735
      End
      Begin VB.Label Label2 
         Caption         =   "管理员密码"
         Height          =   255
         Left            =   240
         TabIndex        =   3
         Top             =   1080
         Width           =   1335
      End
      Begin VB.Label Label1 
         Caption         =   "管理员ID"
         Height          =   255
         Left            =   240
         TabIndex        =   1
         Top             =   360
         Width           =   1215
      End
   End
End
Attribute VB_Name = "AddAdmin"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit

Private Sub Command1_Click()
    Dim sql As String
    Dim rs As New ADODB.Recordset
    
    If User.Text = "" Then      '判断管理员ID输入框不为空
        MsgBox "管理员ID不能为空！", vbCritical
        User.SetFocus
        Exit Sub
    End If
    If Pass.Text = "" Then      '判断管理员密码输入框不为空
        MsgBox "管理员密码不能为空！", vbCritical
        Pass.SetFocus
        Exit Sub
    End If
    If DbHandle.DbConnection Then       '打开数据库连接
        sql = "TBL_ADMIN"       '对TBL_ADMIN进行操作
        rs.CursorType = adOpenDynamic
        rs.LockType = adLockOptimistic
        rs.Filter = "ADMIN_ID='" & User.Text & "'"      '选择条件是符合User.Text的管理员记录
        rs.Open sql, DbFinance
        If DbHandle.resultcount(rs) = 1 Then        '如果找到一条存在的管理员记录就报错
            MsgBox "管理员ID已经存在！", vbExclamation
            rs.Close
            DbHandle.DbClose
            Exit Sub
        Else        '否则新建一条管理员记录完成添加
            rs.Close
            rs.Filter = ""
            rs.Open sql, DbFinance
            rs.AddNew
            rs("ADMIN_ID") = User.Text
            rs("ADMIN_PASSWORD") = Pass.Text
            rs.Update
            rs.Close
        End If
        MsgBox "管理员成功添加！"
        Unload Me
    Else        '当数据库连接打不开时候报错
        MsgBox "数据库错误！", vbExclamation
        DbHandle.DbClose
        End
    End If
End Sub

Private Sub Command2_Click()
    Me.Hide     '取消按钮返回主窗体
End Sub

Private Sub Form_Load()
    Me.Left = (Screen.Width - Me.ScaleWidth) / 2        '把窗体定位居中显示
    Me.Top = (Screen.Height - Me.ScaleHeight) / 2
End Sub

Private Sub Form_Unload(Cancel As Integer)
    On Error Resume Next        '窗体关闭时候关闭数据库连接
    DbHandle.DbClose
End Sub