frmlogin.frm

以前写的一个销售的管理系统,是牙刷销存管理系统,有销售,进货等功能,刚学ＶＢ时写的

VERSION 5.00
Begin VB.Form frmlogin 
   Caption         =   "兴盛牙刷销存管理系统--系统登录"
   ClientHeight    =   3195
   ClientLeft      =   3270
   ClientTop       =   2910
   ClientWidth     =   4680
   KeyPreview      =   -1  'True
   LinkTopic       =   "Form1"
   MaxButton       =   0   'False
   MinButton       =   0   'False
   ScaleHeight     =   3195
   ScaleWidth      =   4680
   Begin VB.CommandButton Command2 
      Caption         =   "取  消"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   14.25
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      Left            =   2640
      TabIndex        =   3
      Top             =   2520
      Width           =   1215
   End
   Begin VB.CommandButton Command1 
      Caption         =   "登  录"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   14.25
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   495
      Left            =   600
      TabIndex        =   2
      Top             =   2520
      Width           =   1215
   End
   Begin VB.TextBox txtpwd 
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   14.25
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      IMEMode         =   3  'DISABLE
      Left            =   2160
      PasswordChar    =   "*"
      TabIndex        =   1
      Top             =   1560
      Width           =   1935
   End
   Begin VB.ComboBox Combo1 
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   14.25
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   405
      Left            =   2160
      Style           =   2  'Dropdown List
      TabIndex        =   0
      Top             =   480
      Width           =   1935
   End
   Begin VB.Label Label2 
      Caption         =   "密    码:"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   14.25
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   600
      TabIndex        =   5
      Top             =   1560
      Width           =   1335
   End
   Begin VB.Label Label1 
      Caption         =   "用 户 名:"
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   14.25
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   375
      Left            =   600
      TabIndex        =   4
      Top             =   480
      Width           =   1335
   End
End
Attribute VB_Name = "frmlogin"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Sub Command1_Click()
  DefaultType = dbUseODBC
  Dim db As Database
  Dim rs As Recordset
  Dim cx As Boolean
  
  Set db = OpenDatabase("xsys", dbDriverNoPrompt, False, "odbc;database=glxt;uid=;pwd=;dsn=xsys")
  Set rs = db.OpenRecordset("yhk", dbOpenDynaset, dbwrite, dbOptimistic)
  Do While rs.EOF <> True
     If rs.Fields("用户名") = Combo1.Text Then
        Exit Do
     End If
     If rs.EOF = True Then
        Exit Do
     End If
     rs.MoveNext
  Loop
  If LTrim(Combo1.Text) = "系统管理员" Then
     If LTrim(txtpwd.Text) = rs.Fields("密码") Then
        frmmenu.Show
        frmlogin.Hide
     Else
        MsgBox "密码不对，请重新输入密码！", vbCritical, "错误"
        txtpwd.Text = ""
        txtpwd.SetFocus
     End If
  Else
     If LTrim(txtpwd.Text) = rs.Fields("密码") Then
        frmmenu.Show
        frmmenu.cxkc.Enabled = False
        frmmenu.zjkh.Enabled = False
        frmmenu.khwh.Enabled = False
        frmmenu.cxkh.Enabled = False
        frmmenu.cxfh.Enabled = False
        frmmenu.sccp.Enabled = False
        frmmenu.cxcp.Enabled = False
        frmmenu.rkcx.Enabled = False
        frmmenu.fhwh.Enabled = False
        frmmenu.fpxyh.Enabled = False
        frmmenu.scczy.Enabled = False
        frmmenu.cxczy.Enabled = False
        frmlogin.Hide
    Else
        MsgBox "您的密码不对,请重新输入!", vbCritical, "错误"
        txtpwd.SetFocus
    End If
 End If
 rs.Close
 db.Close
End Sub

Private Sub Command1_GotFocus()
  If Combo1.Text = "" Then
     MsgBox "您必须选择一个用户名才能登录!", vbCritical, "提示"
     Combo1.SetFocus
  End If
End Sub

Private Sub Command2_Click()
  Unload Me
End Sub

Private Sub Form_KeyPress(KeyAscii As Integer)
  Dim nexttabindex As Integer, i As Integer
       If KeyAscii = 13 Then
          If Screen.ActiveControl.TabIndex = Count - 1 Then
             nexttabindex = 0
          Else
             nexttabindex = Screen.ActiveControl.TabIndex + 1
          End If
          For i = 0 To Count - 1
              If Me.Controls(i).TabIndex = nexttabindex Then
                 Me.Controls(i).SetFocus
                 Exit For
              End If
          Next i
          KeyAscii = 0
        End If
End Sub

Private Sub Form_Load()
  DefaultType = dbUseODBC
  Dim db As Database
  Dim rs As Recordset
  Dim cx As Boolean
  
  Dim sql As String
  Set db = OpenDatabase("xsys", dbDriverNoPrompt, False, "odbc;database=glxt;uid=;pwd=;dsn=xsys")
  Set rs = db.OpenRecordset("yhk", dbOpenDynaset, dbwrite, dbOptimistic)
  rs.MoveFirst
  rs.MoveNext
  Do While rs.EOF <> True
     Combo1.AddItem (rs.Fields("用户名"))
     rs.MoveNext
     If rs.EOF = True Then
        Exit Do
     End If
  Loop
  rs.Close
  Dim wk As Workspace
  Set wk = DBEngine.Workspaces(0)
  Dim str As String
  wk.BeginTrans
  Set rs = db.OpenRecordset("nian", dbOpenDynaset, dbwrite, dbOptimistic)
  rs.MoveFirst
  Do While rs.EOF <> True
     cx = False
     If rs.Fields("年") = CStr(Year(Now)) Then
        cx = True
        Exit Do
     Else
        rs.MoveNext
     End If
     If rs.EOF = True Then
        Exit Do
     End If
  Loop
  If cx <> True Then
     str = "fdk" & CStr(Year(Now))
     sql = "create table [" + str + "]([发货单编号]text(15),[产品编号]text(20),[单位]text(4),[单价]currency,[数量]long,[总金额]currency,[运输人]text(20),[车号]text(15),[发货单日期]date,[备注]memo,[发货]bit,[操作员]text(10),[客户编号]text(10),[单位名称]text(50),[规格]text(2))"
     db.Execute sql
     str = "rdk" & CStr(Year(Now))
     sql = "create table [" + str + "]([产品编号]text(20),[数量]long,[单位]text(2),[入库日期]date,[操作员]text(10))"
     db.Execute sql
     rs.AddNew
     rs.Fields("年") = CStr(Year(Now))
     rs.Update
  End If
  wk.CommitTrans
  db.Close
End Sub

Private Sub Text1_GotFocus()
  If Combo1.Text = "" Then
     MsgBox "您必须选择一个用户名才能登录!", vbCritical, "提示"
     Combo1.SetFocus
  End If
End Sub