frmaddreaderstyle.frm

利用VB完成图书的查询

VERSION 5.00
Begin VB.Form frmaddreaderstyle 
   BackColor       =   &H00FFC0C0&
   Caption         =   "添加读者类别"
   ClientHeight    =   3255
   ClientLeft      =   60
   ClientTop       =   450
   ClientWidth     =   4320
   LinkTopic       =   "Form2"
   MaxButton       =   0   'False
   Picture         =   "frmaddreaderstyle.frx":0000
   ScaleHeight     =   3255
   ScaleWidth      =   4320
   StartUpPosition =   2  '屏幕中心
   Begin VB.CommandButton Command2 
      Caption         =   "取消"
      Height          =   495
      Left            =   2280
      TabIndex        =   9
      Top             =   2520
      Width           =   1095
   End
   Begin VB.CommandButton Command1 
      Caption         =   "确定"
      Height          =   495
      Left            =   360
      TabIndex        =   8
      Top             =   2520
      Width           =   1215
   End
   Begin VB.TextBox Text4 
      Height          =   375
      Left            =   1800
      TabIndex        =   7
      Top             =   1800
      Width           =   1815
   End
   Begin VB.TextBox Text3 
      Height          =   375
      Left            =   1800
      TabIndex        =   6
      Top             =   1200
      Width           =   1815
   End
   Begin VB.TextBox Text2 
      Height          =   375
      Left            =   1800
      TabIndex        =   5
      Top             =   720
      Width           =   1815
   End
   Begin VB.TextBox Text1 
      Height          =   375
      Left            =   1800
      TabIndex        =   4
      Top             =   240
      Width           =   1815
   End
   Begin VB.Label Label4 
      AutoSize        =   -1  'True
      BackStyle       =   0  'Transparent
      Caption         =   "有限期限："
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   240
      Left            =   360
      TabIndex        =   3
      Top             =   1800
      Width           =   1200
   End
   Begin VB.Label Label3 
      AutoSize        =   -1  'True
      BackStyle       =   0  'Transparent
      Caption         =   "借书期限："
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   240
      Left            =   360
      TabIndex        =   2
      Top             =   1200
      Width           =   1200
   End
   Begin VB.Label Label2 
      AutoSize        =   -1  'True
      BackStyle       =   0  'Transparent
      Caption         =   "借书数量："
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   240
      Left            =   360
      TabIndex        =   1
      Top             =   720
      Width           =   1185
   End
   Begin VB.Label Label1 
      AutoSize        =   -1  'True
      BackStyle       =   0  'Transparent
      Caption         =   "读者种类："
      BeginProperty Font 
         Name            =   "宋体"
         Size            =   12
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      Height          =   240
      Left            =   360
      TabIndex        =   0
      Top             =   240
      Width           =   1200
   End
End
Attribute VB_Name = "frmaddreaderstyle"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit
Dim rs_readerstyle As New ADODB.Recordset

Private Sub Command1_Click()
Dim sql As String
If Trim(Text1.Text) = "" Then
   MsgBox "读者种类不能为空", vbOKOnly + vbExclamation, ""
   Text1.SetFocus
   Exit Sub
End If
If Trim(Text2.Text) = "" Then
   MsgBox "借书数量不能为空", vbOKOnly + vbExclamation, ""
   Text2.SetFocus
   Exit Sub
End If
If Trim(Text3.Text) = "" Then
   MsgBox "借书期限不能为空", vbOKOnly + vbExclamation, ""
   Text3.SetFocus
   Exit Sub
End If
If Trim(Text4.Text) = "" Then
   MsgBox "有限期限不能为空", vbOKOnly + vbExclamation, ""
   Text4.SetFocus
   Exit Sub
End If
sql = "select * from 读者类别 where 种类名称='" & Text1.Text & "'"
rs_readerstyle.Open sql, conn, adOpenKeyset, adLockPessimistic
If rs_readerstyle.EOF Then
   rs_readerstyle.AddNew
   rs_readerstyle.Fields(0) = Trim(Text1.Text)
   rs_readerstyle.Fields(1) = CInt(Text2.Text)
   rs_readerstyle.Fields(2) = CInt(Text3.Text)
   rs_readerstyle.Fields(3) = CInt(Text4.Text)
   rs_readerstyle.Update
   MsgBox "添加读者类别成功！", vbOKOnly, ""
   rs_readerstyle.Close
Else
   MsgBox "读者类别重复！", vbOKOnly + vbExclamation, ""
   Text1.SetFocus
   Text1.Text = ""
   rs_readerstyle.Close
   Exit Sub
End If

End Sub

Private Sub Command2_Click()
Unload Me
End Sub