form13.frm

用VB编的学生信息管理系统

VERSION 5.00
Begin VB.Form Form13 
   BorderStyle     =   4  'Fixed ToolWindow
   Caption         =   "添加用户"
   ClientHeight    =   3345
   ClientLeft      =   45
   ClientTop       =   390
   ClientWidth     =   4620
   LinkTopic       =   "Form13"
   MaxButton       =   0   'False
   MDIChild        =   -1  'True
   MinButton       =   0   'False
   ScaleHeight     =   3345
   ScaleWidth      =   4620
   ShowInTaskbar   =   0   'False
   Begin VB.CommandButton Command2 
      Caption         =   "取消"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   10.5
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      Left            =   2160
      TabIndex        =   4
      Top             =   2520
      Width           =   855
   End
   Begin VB.CommandButton Command1 
      Caption         =   "确认"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   10.5
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      Left            =   480
      TabIndex        =   3
      Top             =   2520
      Width           =   855
   End
   Begin VB.TextBox Text3 
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   10.5
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      IMEMode         =   3  'DISABLE
      Left            =   1800
      PasswordChar    =   "*"
      TabIndex        =   2
      Top             =   1560
      Width           =   1455
   End
   Begin VB.TextBox Text2 
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   10.5
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      IMEMode         =   3  'DISABLE
      Left            =   1800
      PasswordChar    =   "*"
      TabIndex        =   1
      Top             =   840
      Width           =   1455
   End
   Begin VB.TextBox Text1 
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   10.5
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      Left            =   1800
      TabIndex        =   0
      Top             =   120
      Width           =   1455
   End
   Begin VB.Label Label3 
      Caption         =   "请确认密码"
      BeginProperty Font 
         Name            =   "黑体"
         Size            =   12
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   120
      TabIndex        =   7
      Top             =   1560
      Width           =   1455
   End
   Begin VB.Label Label2 
      Caption         =   "请输入密码"
      BeginProperty Font 
         Name            =   "黑体"
         Size            =   12
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   120
      TabIndex        =   6
      Top             =   840
      Width           =   1455
   End
   Begin VB.Label Label1 
      Caption         =   "请输入用户名"
      BeginProperty Font 
         Name            =   "黑体"
         Size            =   12
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   120
      TabIndex        =   5
      Top             =   240
      Width           =   1575
   End
End
Attribute VB_Name = "Form13"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Dim conn As New ADODB.Connection
Dim mrc As New ADODB.Recordset
Private Sub Command1_Click()
  Dim txtsql As String
  If Trim(Text1.Text) = "" Then
   MsgBox "请输入用户名称!", vbExclamation, "警告"
  Exit Sub
Else
   txtsql = "select * from 用户表 "
  Set mrc = executesql(txtsql)
   While (mrc.EOF = False)
      If Trim(mrc.Fields(0)) = Trim(Text1.Text) Then
      MsgBox "用户已经存在,请重新输入!", , "警告"
      Exit Sub
      Else
         mrc.MoveNext
      End If
    Wend
 End If
   
If Trim(Text2.Text) <> Trim(Text3.Text) Then
   MsgBox "两次输入密码不一样 请确认!", , "警告"
   Exit Sub
  Else
   If Text2.Text = "" Then
      MsgBox "密码不能为空!", vbExclamation, "警告"
   Else
      mrc.AddNew
      mrc.Fields(0) = Trim(Text1.Text)
      mrc.Fields(1) = Trim(Text2.Text)
      mrc.Update
    MsgBox "添加用户成功!", , "添加用户"
    End If
 End If
 
 Text1.Text = " "
 
 Text2.Text = " "
 Text3.Text = " "
End Sub

Public Function executesql(ByVal sql As String) As ADODB.Recordset
  Dim cnn As ADODB.Connection
  Dim rst As ADODB.Recordset
  Set cnn = New ADODB.Connection
  Dim stokens() As String
   stokens = Split(sql)
   cnn.Open "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & App.Path & "\student.mdb"
  If InStr(" INSERT,DELETE,UPDATE", UCase$(stokens(0))) Then
   cnn.Execute sql
  Else
  Set rst = New ADODB.Recordset
   rst.Open Trim$(sql), cnn, adOpenKeyset, adLockOptimistic
  Set executesql = rst
  End If
End Function

Private Sub Command2_Click()
 Me.Hide
End Sub

Private Sub Form_Load()
  connstr = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & App.Path & "\student.mdb"
  conn.Open connstr
End Sub