roomtype.frm

<Visual Basic 数据库开发实例精粹（第二版）>一书首先介绍了Visual Basic(简称VB)开发的技巧和重点技术

VERSION 5.00
Object = "{67397AA1-7FB1-11D0-B148-00A0C922E820}#6.0#0"; "MSADODC.OCX"
Object = "{CDE57A40-8B86-11D0-B3C6-00A0C90AEA82}#1.0#0"; "MSDATGRD.OCX"
Begin VB.Form FMRoomType 
   Caption         =   "房间类型："
   ClientHeight    =   5340
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   6405
   LinkTopic       =   "Form1"
   ScaleHeight     =   5340
   ScaleWidth      =   6405
   StartUpPosition =   3  '窗口缺省
   Begin VB.CommandButton CmdCancel 
      Caption         =   "删除"
      Height          =   495
      Left            =   4920
      TabIndex        =   7
      Top             =   960
      Width           =   1215
   End
   Begin VB.TextBox TextRTN 
      Height          =   375
      Left            =   2280
      TabIndex        =   6
      Top             =   1080
      Width           =   1815
   End
   Begin VB.TextBox TextRTID 
      Height          =   375
      Left            =   2280
      TabIndex        =   5
      Top             =   240
      Width           =   1815
   End
   Begin VB.CommandButton CmdAdd 
      Caption         =   "添加"
      Height          =   495
      Left            =   4920
      TabIndex        =   2
      Top             =   240
      Width           =   1215
   End
   Begin MSAdodcLib.Adodc Adodc1 
      Height          =   450
      Left            =   4200
      Top             =   2160
      Visible         =   0   'False
      Width           =   1815
      _ExtentX        =   3201
      _ExtentY        =   794
      ConnectMode     =   0
      CursorLocation  =   3
      IsolationLevel  =   -1
      ConnectionTimeout=   15
      CommandTimeout  =   30
      CursorType      =   3
      LockType        =   3
      CommandType     =   2
      CursorOptions   =   0
      CacheSize       =   50
      MaxRecords      =   0
      BOFAction       =   0
      EOFAction       =   0
      ConnectStringType=   1
      Appearance      =   1
      BackColor       =   -2147483643
      ForeColor       =   -2147483640
      Orientation     =   0
      Enabled         =   -1
      Connect         =   "Provider=SQLOLEDB.1;Persist Security Info=False;User ID=sa;Initial Catalog=test;Data Source=ZHANG"
      OLEDBString     =   "Provider=SQLOLEDB.1;Persist Security Info=False;User ID=sa;Initial Catalog=test;Data Source=ZHANG"
      OLEDBFile       =   ""
      DataSourceName  =   ""
      OtherAttributes =   ""
      UserName        =   ""
      Password        =   ""
      RecordSource    =   "RoomType"
      Caption         =   "Adodc1"
      BeginProperty Font {0BE35203-8F91-11CE-9DE3-00AA004BB851} 
         Name            =   "宋体"
         Size            =   9
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      _Version        =   393216
   End
   Begin MSDataGridLib.DataGrid DataGrid1 
      Bindings        =   "RoomType.frx":0000
      Height          =   3135
      Left            =   240
      TabIndex        =   0
      Top             =   2040
      Width           =   5925
      _ExtentX        =   10451
      _ExtentY        =   5530
      _Version        =   393216
      AllowUpdate     =   0   'False
      AllowArrows     =   0   'False
      ColumnHeaders   =   -1  'True
      HeadLines       =   1
      RowHeight       =   15
      FormatLocked    =   -1  'True
      BeginProperty HeadFont {0BE35203-8F91-11CE-9DE3-00AA004BB851} 
         Name            =   "宋体"
         Size            =   9
         Charset         =   134
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      BeginProperty Font {0BE35203-8F91-11CE-9DE3-00AA004BB851} 
         Name            =   "宋体"
         Size            =   9.75
         Charset         =   134
         Weight          =   700
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ColumnCount     =   2
      BeginProperty Column00 
         DataField       =   "RoomTypeID"
         Caption         =   "房间类型编号"
         BeginProperty DataFormat {6D835690-900B-11D0-9484-00A0C91110ED} 
            Type            =   0
            Format          =   "0"
            HaveTrueFalseNull=   0
            FirstDayOfWeek  =   0
            FirstWeekOfYear =   0
            LCID            =   2052
            SubFormatType   =   0
         EndProperty
      EndProperty
      BeginProperty Column01 
         DataField       =   "RoomTypeName"
         Caption         =   "房间类型名称"
         BeginProperty DataFormat {6D835690-900B-11D0-9484-00A0C91110ED} 
            Type            =   0
            Format          =   ""
            HaveTrueFalseNull=   0
            FirstDayOfWeek  =   0
            FirstWeekOfYear =   0
            LCID            =   2052
            SubFormatType   =   0
         EndProperty
      EndProperty
      SplitCount      =   1
      BeginProperty Split0 
         BeginProperty Column00 
         EndProperty
         BeginProperty Column01 
         EndProperty
      EndProperty
   End
   Begin VB.Frame Frame1 
      Caption         =   " 房间类型"
      Height          =   3495
      Left            =   120
      TabIndex        =   1
      Top             =   1800
      Width           =   6135
   End
   Begin VB.Label Label2 
      Caption         =   "房间类型名称："
      Height          =   375
      Left            =   480
      TabIndex        =   4
      Top             =   1080
      Width           =   1455
   End
   Begin VB.Label Label1 
      Caption         =   "房间类型编号："
      Height          =   255
      Left            =   480
      TabIndex        =   3
      Top             =   360
      Width           =   1335
   End
End
Attribute VB_Name = "FMRoomType"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Sub CmdAdd_Click()
Dim AddRoomType As New ADODB.Recordset
Dim SqlStr As String
Dim DBStrID As String
Dim DBStrName As String
Dim sRoomTypeID As String
Dim sRoomTypeName As String
    
    If Me.TextRTID.Text = "" Then
        MsgBox "请输入房间类型编号！"
        Exit Sub
    End If
    
    sRoomTypeID = Trim(Me.TextRTID.Text)
    
    If Me.TextRTN.Text = "" Then
        MsgBox "请输入房间类型名称！"
        Exit Sub
    End If
    
    sRoomTypeName = Trim(Me.TextRTN.Text)
    
    DBStrID = "select * from RoomType where RoomTypeID='" & sRoomTypeID & "'"
    AddRoomType.Open DBStrID, DBCnn, adOpenForwardOnly, adLockOptimistic
        If Not AddRoomType.BOF Then
            MsgBox "该房间类型编号已存在！"
            AddRoomType.Close
            Exit Sub
        End If
    AddRoomType.Close
    
    DBStrName = "select * from RoomType where RoomTypeName='" & sRoomTypeName & "'"
    AddRoomType.Open DBStrName, DBCnn, adOpenForwardOnly, adLockOptimistic
        If Not AddRoomType.BOF Then
            MsgBox "该房间类型名称已存在！"
            AddRoomType.Close
            Exit Sub
        End If
    AddRoomType.Close
    
    SqlStr = "insert into RoomType(RoomTypeID,RoomTypeName) values('" & sRoomTypeID & "','" & sRoomTypeName & "');"
    DBCnn.Execute SqlStr
    'MsgBox "添加成功！"
    Me.TextRTID.Text = ""
    Me.TextRTN.Text = ""
    
    Adodc1.Refresh
         
        
End Sub

Private Sub CmdCancel_Click()
If Me.DataGrid1.Row = 0 Then
    MsgBox "没有选择！"
    Exit Sub
End If

Me.Adodc1.Recordset.Delete
MsgBox "删除成功！"

End Sub

Private Sub Form_Load()
    Me.Top = (Screen.Height - Me.Height) / 2    '垂直方向居中
    Me.Left = (Screen.Width - Me.Height) / 2    '水平方向居中

End Sub