form1.frm

本文件包含200个visual baisc实例

VERSION 5.00
Object = "{5E9E78A0-531B-11CF-91F6-C2863C385E30}#1.0#0"; "MSFLXGRD.OCX"
Object = "{86CF1D34-0C5F-11D2-A9FC-0000F8754DA1}#2.0#0"; "MSCOMCT2.OCX"
Begin VB.Form Form1 
   Caption         =   "SQL使用技巧-日期数据查询"
   ClientHeight    =   4380
   ClientLeft      =   60
   ClientTop       =   345
   ClientWidth     =   8325
   LinkTopic       =   "Form1"
   ScaleHeight     =   4380
   ScaleWidth      =   8325
   StartUpPosition =   1  '所有者中心
   Begin VB.Data Data1 
      Caption         =   "Data1"
      Connect         =   "Access"
      DatabaseName    =   "C:\mrjd\kfgl.mdb"
      DefaultCursorType=   0  '缺省游标
      DefaultType     =   2  '使用 ODBC
      Exclusive       =   0   'False
      Height          =   450
      Left            =   4560
      Options         =   0
      ReadOnly        =   0   'False
      RecordsetType   =   1  'Dynaset
      RecordSource    =   "gzmx"
      Top             =   -30
      Visible         =   0   'False
      Width           =   1140
   End
   Begin VB.CommandButton Command1 
      Caption         =   "退出"
      Height          =   360
      Left            =   6135
      TabIndex        =   0
      Top             =   3960
      Width           =   2115
   End
   Begin MSFlexGridLib.MSFlexGrid MS4 
      Bindings        =   "Form1.frx":0000
      Height          =   3480
      Left            =   60
      TabIndex        =   1
      Top             =   405
      Width           =   8205
      _ExtentX        =   14473
      _ExtentY        =   6138
      _Version        =   393216
      FixedCols       =   0
      AllowUserResizing=   3
   End
   Begin MSComCtl2.DTPicker DTP1 
      Height          =   285
      Left            =   615
      TabIndex        =   2
      Top             =   60
      Width           =   1425
      _ExtentX        =   2514
      _ExtentY        =   503
      _Version        =   393216
      Format          =   24444929
      CurrentDate     =   37132
   End
   Begin MSComCtl2.DTPicker DTP2 
      Height          =   285
      Left            =   2490
      TabIndex        =   3
      Top             =   60
      Width           =   1410
      _ExtentX        =   2487
      _ExtentY        =   503
      _Version        =   393216
      Format          =   24444929
      CurrentDate     =   37132
   End
   Begin VB.Label Label1 
      BackStyle       =   0  'Transparent
      Caption         =   "日期"
      Height          =   300
      Left            =   90
      TabIndex        =   5
      Top             =   120
      Width           =   570
   End
   Begin VB.Label Label2 
      BackStyle       =   0  'Transparent
      Caption         =   "到"
      Height          =   285
      Left            =   2175
      TabIndex        =   4
      Top             =   120
      Width           =   240
   End
End
Attribute VB_Name = "Form1"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Dim mydate1 As String
Dim MYDATE2 As String
Private Sub Form_Load()
  '自动识别数据库路径
  Data1.DatabaseName = App.Path & "\kfgl.mdb"
End Sub
Private Sub Form_Activate()
  Data1.RecordSource = "select * from gzmx"
  Data1.Refresh
  DTP1.Value = Date - 30
  DTP2.Value = Date
  mydate1 = DTP1.Value
  MYDATE2 = DTP2.Value
  '增加第0列与第8列的列宽
  MS4.ColWidth(0) = 12 * 25 * 4
  MS4.ColWidth(8) = 12 * 25 * 5
End Sub
Private Sub DTP1_Change()
  mydate1 = DTP1.Value
  MYDATE2 = DTP2.Value
  If DTP1.Value < DTP2.Value Then
     Data1.RecordSource = "select * from gzmx where gzmx.日期 between " + Chr(35) + mydate1 + Chr(35) + "and " + Chr(35) + MYDATE2 + Chr(35) + "order by 日期,时间"
     Data1.Refresh
   Else
     MsgBox "系统不允许日期颠倒"
     DTP2.Value = DTP1.Value + 1
  End If
End Sub
Private Sub DTP2_Change()
  mydate1 = DTP1.Value
  MYDATE2 = DTP2.Value
  If DTP1.Value < DTP2.Value Then
     Data1.RecordSource = "select * from gzmx where gzmx.日期 between " + Chr(35) + mydate1 + Chr(35) + "and " + Chr(35) + MYDATE2 + Chr(35) + "order by 日期,时间"
     Data1.Refresh
   Else
     DTP2.Value = DTP1.Value + 1
     MsgBox "系统不允许日期颠倒"
  End If
End Sub
Private Sub Command1_Click()
  Unload Me
End Sub