www.pudn.com > opy_LMS.rar > frmLogin.frm
VERSION 5.00
Begin VB.Form frmLogin
BorderStyle = 1 'Fixed Single
Caption = "登录"
ClientHeight = 3495
ClientLeft = 45
ClientTop = 330
ClientWidth = 3975
ControlBox = 0 'False
LinkTopic = "Form1"
MaxButton = 0 'False
MinButton = 0 'False
ScaleHeight = 3495
ScaleMode = 0 'User
ScaleWidth = 3975
StartUpPosition = 2 '屏幕中心
Begin VB.ComboBox cmb_as
Height = 300
ItemData = "frmLogin.frx":0000
Left = 1440
List = "frmLogin.frx":000A
TabIndex = 0
ToolTipText = "用户权限"
Top = 960
Width = 2295
End
Begin VB.CommandButton cmdOK
Default = -1 'True
BeginProperty Font
Name = "MS Sans Serif"
Size = 9.75
Charset = 0
Weight = 400
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 615
Left = 1680
MouseIcon = "frmLogin.frx":001E
MousePointer = 99 'Custom
Picture = "frmLogin.frx":0170
Style = 1 'Graphical
TabIndex = 6
ToolTipText = "点击登入"
Top = 2640
Width = 1020
End
Begin VB.CommandButton cmdCancel
Cancel = -1 'True
BeginProperty Font
Name = "MS Sans Serif"
Size = 9.75
Charset = 0
Weight = 400
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 615
Left = 2760
MouseIcon = "frmLogin.frx":06E2
MousePointer = 99 'Custom
Picture = "frmLogin.frx":0834
Style = 1 'Graphical
TabIndex = 10
ToolTipText = "取消"
Top = 2640
Width = 1020
End
Begin VB.Frame Frame1
Height = 1215
Left = 120
TabIndex = 8
Top = 1320
Width = 3735
Begin VB.TextBox txt_uname
BeginProperty Font
Name = "MS Sans Serif"
Size = 9.75
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
ForeColor = &H00400000&
Height = 345
Left = 1320
MaxLength = 20
TabIndex = 2
ToolTipText = "操作员帐号"
Top = 240
Width = 2325
End
Begin VB.TextBox txt_pass
BeginProperty Font
Name = "MS Sans Serif"
Size = 9.75
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
ForeColor = &H00400000&
Height = 345
IMEMode = 3 'DISABLE
Left = 1320
MaxLength = 20
PasswordChar = "*"
TabIndex = 3
ToolTipText = "密码"
Top = 720
Width = 2325
End
Begin VB.Label lblLabels
BackStyle = 0 'Transparent
Caption = "帐 号:"
BeginProperty Font
Name = "宋体"
Size = 9.75
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
ForeColor = &H00800000&
Height = 270
Index = 0
Left = 120
TabIndex = 9
Top = 240
Width = 1080
End
Begin VB.Label lblLabels
BackStyle = 0 'Transparent
Caption = "密 码:"
BeginProperty Font
Name = "宋体"
Size = 9.75
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
ForeColor = &H00800000&
Height = 270
Index = 1
Left = 120
TabIndex = 11
Top = 720
Width = 1080
End
End
Begin VB.Label Label1
BackStyle = 0 'Transparent
Caption = "登录权限"
BeginProperty Font
Name = "宋体"
Size = 9.75
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
ForeColor = &H00800000&
Height = 255
Left = 240
TabIndex = 1
Top = 960
Width = 975
End
Begin VB.Label Label2
Alignment = 2 'Center
BackStyle = 0 'Transparent
Caption = "取消"
Height = 255
Left = 2760
TabIndex = 4
Top = 3285
Width = 975
End
Begin VB.Label Label3
Alignment = 2 'Center
BackStyle = 0 'Transparent
Caption = "确定"
Height = 255
Left = 1680
TabIndex = 5
Top = 3285
Width = 975
End
Begin VB.Image Image1
Height = 720
Left = 120
Picture = "frmLogin.frx":0DB4
Top = 0
Width = 720
End
Begin VB.Label Label4
BackStyle = 0 'Transparent
Caption = "登录图书馆管理系统的详细选项,不同权限的用户具备不同的管理功能"
BeginProperty Font
Name = "宋体"
Size = 10.5
Charset = 134
Weight = 400
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 735
Left = 960
TabIndex = 7
Top = 120
Width = 2655
End
Begin VB.Line Line1
X1 = 120
X2 = 3840
Y1 = 840
Y2 = 840
End
End
Attribute VB_Name = "frmLogin"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Dim str As String
Dim Loginrecord As ADODB.Recordset
Dim Loginconnection As ADODB.Connection
Private Sub cmb_as_Click()
If (cmb_as.Text = "管理员") Then
txt_uname.Enabled = False
Else
txt_uname.Enabled = True
End If
txt_uname.Text = ""
End Sub
Private Sub cmdCancel_Click()
Unload MDIMain
End Sub
Private Sub cmdOK_Click()
If cmb_as.Text = "管理员" Then
If (txt_pass.Text = "") Then
MsgBox "请输入密码", vbInformation, "密码错误"
txt_pass.SetFocus
Exit Sub
End If
str = "Select Pass from Custom"
' Set Loginrecord = exesql(str)
Loginrecord.Open str, Loginconnection, adOpenStatic, adLockOptimistic
If (txt_pass.Text = Trim(Loginrecord(0))) Then
Loginrecord.Close
uname = "管理员"
MDIMain.Enabled = True
'MDIMain.Show
Me.Hide
DoEvents
If (Welcome = True) Then
Load frmWelcome
frmWelcome.Show
End If
MDIMain.mnu_administer.Enabled = True
Else
Loginrecord.Close
MsgBox "密码错误.", vbInformation, "拒绝访问"
txt_pass.Text = ""
Exit Sub
End If
ElseIf cmb_as.Text = "操作员" Then
If (txt_uname.Text = "") Then
MsgBox "请输入用户名.", vbInformation, "用户名错误"
ElseIf (txt_pass.Text = "") Then
MsgBox "请输入密码.", vbInformation, "密码错误"
Else
str = "Select count(*) from Emptab where Empid = '" & Trim(txt_uname.Text) & "' and Psword = '" & Trim(txt_pass.Text) & "'"
Loginrecord.Open str, Loginconnection, adOpenStatic, adLockOptimistic
' Set Loginrecord = exesql(str)
If (Loginrecord(0) = 0) Then
MsgBox "用户名或密码不正确.", vbInformation, "拒绝访问"
txt_uname.Text = ""
txt_pass.Text = ""
txt_uname.SetFocus
Loginrecord.Close
Exit Sub
Else
Loginrecord.Close
str = "Select Ename from Emptab where Empid = '" & Trim(txt_uname.Text) & "' and Psword = '" & Trim(txt_pass.Text) & "'"
Loginrecord.Open str, Loginconnection, adOpenStatic, adLockOptimistic
' Set Loginrecord = exesql(str)
uname = Loginrecord(0)
MDIMain.Enabled = True
' mdimain.Show
Me.Hide
DoEvents
If (Welcome = True) Then
Load frmWelcome
frmWelcome.Show
End If
Loginrecord.Close
MDIMain.mnu_administer.Enabled = False
End If
End If
Else
MsgBox "没有选择用户类别.", vbCritical, "错误信息"
End If
MDIMain.sbStatusBar.Panels(3).Text = uname
End Sub
Private Sub Form_Activate()
cmb_as.SetFocus
MDIMain.Enabled = False
End Sub
Private Sub Form_Load()
On Error GoTo errlable
Set Loginconnection = New ADODB.Connection
Loginconnection.ConnectionString = "DSN=library;UID=sa;PWD=;"
Loginconnection.Open
str = "Select count(*) from Emptab"
Set Loginrecord = New ADODB.Recordset
Loginrecord.Open str, Loginconnection, adOpenStatic, adLockOptimistic
If (Loginrecord(0) = 0) Then
cmb_as.Text = "管理员"
cmb_as.Locked = True
txt_uname.Enabled = False
End If
Loginrecord.Close
Exit Sub
errlable:
MsgBox Err.Number & Err.Description
End Sub