frmairline2.frm

9个VB写的数据库管理系统源代码

VERSION 5.00
Begin VB.Form frmAirline2 
   Caption         =   "航线信息查询"
   ClientHeight    =   1548
   ClientLeft      =   48
   ClientTop       =   348
   ClientWidth     =   3672
   LinkTopic       =   "Form1"
   ScaleHeight     =   1548
   ScaleWidth      =   3672
   StartUpPosition =   1  'CenterOwner
   Begin VB.ComboBox Combo1 
      Height          =   288
      Index           =   1
      Left            =   1200
      Style           =   2  'Dropdown List
      TabIndex        =   6
      Top             =   480
      Width           =   2172
   End
   Begin VB.TextBox txtNo 
      Height          =   270
      Left            =   120
      TabIndex        =   5
      TabStop         =   0   'False
      Top             =   1920
      Visible         =   0   'False
      Width           =   735
   End
   Begin VB.ComboBox Combo1 
      Height          =   288
      Index           =   0
      Left            =   1200
      Style           =   2  'Dropdown List
      TabIndex        =   2
      Top             =   120
      Width           =   2172
   End
   Begin VB.CommandButton cmdOk 
      Caption         =   "确定 (&O)"
      Default         =   -1  'True
      Height          =   375
      Left            =   480
      TabIndex        =   1
      Top             =   1080
      Width           =   1215
   End
   Begin VB.CommandButton cmdExit 
      Caption         =   "取消 (&X)"
      Height          =   375
      Left            =   2040
      TabIndex        =   0
      Top             =   1080
      Width           =   1215
   End
   Begin VB.Label lblitem 
      Caption         =   "到达城市："
      Height          =   252
      Index           =   1
      Left            =   360
      TabIndex        =   4
      Top             =   480
      Width           =   852
   End
   Begin VB.Label lblitem 
      Caption         =   "出发城市："
      Height          =   252
      Index           =   0
      Left            =   360
      TabIndex        =   3
      Top             =   120
      Width           =   852
   End
End
Attribute VB_Name = "frmAirline2"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit
'download by http://www.codefans.net

Private Sub cmdExit_Click()
    Me.Hide
End Sub

Private Sub cmdOK_Click()
    Dim sQSql As String
    
    
    If (Trim(Combo1(0)) = "") Or (Trim(Combo1(1)) = "") Then
        MsgBox "请设置查询条件！", vbOKOnly + vbExclamation, "警告"
        Exit Sub
    Else
        sQSql = "select * from airlineInfo where departCity = '" & Trim(Combo1(0)) & "' and arrivalCity = '" & Trim(Combo1(1)) & "'"
    End If
    Unload frmAirline
    frmAirline.txtSQL = sQSql
    frmAirline.Show
    
    
End Sub
Private Sub Form_Load()
    
    
    Dim i As Integer
    Dim sSql As String
    Dim txtSQL As String
    Dim MsgText As String
    Dim mrc As ADODB.Recordset
    
    For i = 0 To 1
        Combo1(i).Clear
    Next i
    
    txtSQL = "select DISTINCT departCity from airlineInfo"
    Set mrc = ExecuteSQL(txtSQL, MsgText)
        
    If Not mrc.EOF Then
            
        Do While Not mrc.EOF
            Combo1(0).AddItem Trim(mrc.Fields(0))
            mrc.MoveNext
        Loop
    Else
        MsgBox "请先进行航线信息设置！", vbOKOnly + vbExclamation, "警告"
        Exit Sub
    End If
    mrc.Close
    
    txtSQL = "select DISTINCT arrivalCity from airlineInfo"
    Set mrc = ExecuteSQL(txtSQL, MsgText)
        
    If Not mrc.EOF Then
            
        Do While Not mrc.EOF
            Combo1(1).AddItem Trim(mrc.Fields(0))
            mrc.MoveNext
        Loop
    Else
        MsgBox "请先进行航线信息设置！", vbOKOnly + vbExclamation, "警告"
        Exit Sub
    End If
    mrc.Close
    
    
End Sub



Private Sub txtItem_GotFocus(Index As Integer)
    txtItem(Index).SelStart = 0
    txtItem(Index).SelLength = Len(txtItem(Index))
End Sub