?? frmqueryhouse.frm
字號:
VERSION 5.00
Begin VB.Form frmQueryHouse
Caption = "房屋資料查詢"
ClientHeight = 4560
ClientLeft = 60
ClientTop = 345
ClientWidth = 8490
LinkTopic = "Form1"
ScaleHeight = 4560
ScaleWidth = 8490
StartUpPosition = 3 '窗口缺省
Begin VB.CommandButton cmdClose
Caption = "關 閉"
Height = 495
Left = 4680
TabIndex = 14
Top = 3840
Width = 1575
End
Begin VB.CommandButton cmdQuery
Caption = "查 詢"
Height = 495
Left = 1920
TabIndex = 13
Top = 3840
Width = 1575
End
Begin VB.Frame Frame1
Caption = "請輸入查詢條件"
Height = 3375
Left = 360
TabIndex = 0
Top = 240
Width = 7815
Begin VB.TextBox Text1
Height = 375
Index = 2
Left = 3360
TabIndex = 11
Top = 2640
Width = 2775
End
Begin VB.TextBox Text1
Height = 375
Index = 1
Left = 3360
TabIndex = 7
Top = 1680
Width = 2775
End
Begin VB.ComboBox Combo1
Height = 300
Index = 8
ItemData = "frmQueryHouse.frx":0000
Left = 6360
List = "frmQueryHouse.frx":000D
TabIndex = 12
Text = "Combo1"
Top = 2640
Width = 1095
End
Begin VB.ComboBox Combo1
Height = 300
Index = 7
ItemData = "frmQueryHouse.frx":001F
Left = 2040
List = "frmQueryHouse.frx":002C
TabIndex = 10
Text = "Combo1"
Top = 2640
Width = 1095
End
Begin VB.ComboBox Combo1
Height = 300
Index = 6
ItemData = "frmQueryHouse.frx":0039
Left = 600
List = "frmQueryHouse.frx":0055
TabIndex = 9
Text = "Combo1"
Top = 2640
Width = 1095
End
Begin VB.ComboBox Combo1
Height = 300
Index = 5
ItemData = "frmQueryHouse.frx":00A5
Left = 6360
List = "frmQueryHouse.frx":00B2
TabIndex = 8
Text = "Combo1"
Top = 1680
Width = 1095
End
Begin VB.ComboBox Combo1
Height = 300
Index = 4
ItemData = "frmQueryHouse.frx":00C4
Left = 2040
List = "frmQueryHouse.frx":00D1
TabIndex = 6
Text = "Combo1"
Top = 1680
Width = 1095
End
Begin VB.ComboBox Combo1
Height = 300
Index = 3
ItemData = "frmQueryHouse.frx":00DE
Left = 600
List = "frmQueryHouse.frx":00FA
TabIndex = 5
Text = "Combo1"
Top = 1680
Width = 1095
End
Begin VB.ComboBox Combo1
Height = 300
Index = 2
ItemData = "frmQueryHouse.frx":014A
Left = 6360
List = "frmQueryHouse.frx":0157
TabIndex = 4
Text = "Combo1"
Top = 720
Width = 1095
End
Begin VB.ComboBox Combo1
Height = 300
Index = 1
ItemData = "frmQueryHouse.frx":0169
Left = 2040
List = "frmQueryHouse.frx":0176
TabIndex = 2
Text = "Combo1"
Top = 720
Width = 1095
End
Begin VB.TextBox Text1
Height = 375
Index = 0
Left = 3360
TabIndex = 3
Top = 720
Width = 2775
End
Begin VB.ComboBox Combo1
Height = 300
Index = 0
ItemData = "frmQueryHouse.frx":0183
Left = 600
List = "frmQueryHouse.frx":019F
TabIndex = 1
Text = "Combo1"
Top = 720
Width = 1095
End
Begin VB.Label Label12
Caption = "查找關系"
Height = 255
Left = 2160
TabIndex = 26
Top = 2280
Width = 855
End
Begin VB.Label Label11
Caption = "查找關系"
Height = 255
Left = 2160
TabIndex = 25
Top = 1320
Width = 855
End
Begin VB.Label Label10
Caption = "查找關系"
Height = 255
Left = 2160
TabIndex = 24
Top = 360
Width = 855
End
Begin VB.Label Label9
Caption = "邏輯關系"
Height = 255
Left = 6480
TabIndex = 23
Top = 2280
Width = 735
End
Begin VB.Label Label8
Caption = "查找值"
Height = 255
Left = 4560
TabIndex = 22
Top = 2280
Width = 615
End
Begin VB.Label Label7
Caption = "查找字段"
Height = 255
Left = 720
TabIndex = 21
Top = 2280
Width = 855
End
Begin VB.Label Label6
Caption = "邏輯關系"
Height = 255
Left = 6480
TabIndex = 20
Top = 1320
Width = 735
End
Begin VB.Label Label5
Caption = "查找值"
Height = 255
Left = 4560
TabIndex = 19
Top = 1320
Width = 615
End
Begin VB.Label Label4
Caption = "查找字段"
Height = 255
Left = 720
TabIndex = 18
Top = 1320
Width = 855
End
Begin VB.Label Label3
Caption = "邏輯關系"
Height = 255
Left = 6480
TabIndex = 17
Top = 360
Width = 735
End
Begin VB.Label Label2
Caption = "查找值"
Height = 255
Left = 4560
TabIndex = 16
Top = 360
Width = 615
End
Begin VB.Label Label1
Caption = "查找字段"
Height = 255
Left = 720
TabIndex = 15
Top = 360
Width = 855
End
End
End
Attribute VB_Name = "frmQueryHouse"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Private Sub cmdClose_Click()
Unload Me
End Sub
Private Sub cmdQuery_Click()
'要求至少要有一個查詢條件，而且查詢條件要靠前寫，即如果只有一個查詢條件
'必須輸在第一行，有2個查詢條件，只能輸在1，2兩行上
If Text1(0).Text = "" Then
MsgBox "請輸入至少一個查詢條件，或把查詢條件輸入在前面的行上！", vbOKOnly + vbInformation, "注意"
Text1(0).SetFocus
Text1(1).Text = ""
Text1(2).Text = ""
Exit Sub
End If
If Text1(1).Text = "" And Not Text1(2).Text = "" Then
MsgBox "請把查詢條件輸入在前面的行上！", vbOKOnly + vbInformation, "注意"
Text1(1).SetFocus
Text1(2).Text = ""
Exit Sub
End If
'除建筑面積、使用面積和出租價位以外的查詢字段其查詢關系不能為> 或 <，判斷之
'由于窗體上的控件使用的是數組，因此可以用下面的for循環節省代碼
For i = 0 To 2
If Not Text1(i).Text = "" And Not Combo1(3 * i).ListIndex = 5 And Not Combo1(3 * i).ListIndex = 6 And Not Combo1(3 * i).ListIndex = 7 And Not Combo1(3 * i + 1).ListIndex = 0 Then
MsgBox "該字段的查找關系不能為 > 或 < ！", vbOKOnly + vbInformation, "注意"
Combo1(3 * i + 1).SetFocus
Exit Sub
End If
Next i
'設置查詢判斷變量為真
queryhouse = True
'使用全局變量sqlqh保存該查詢表達式的sql 語句
'如果查詢字段是數字型，則需要用Val函數轉換text1.text的內容
For j = 0 To 2
'現判斷該text框是否為空
If Not Text1(j).Text = "" Then
'判斷該查詢字段是否為面積和價位等數字型
'combo1(3*j)為查詢字段
If Combo1(3 * j).ListIndex = 5 Or Combo1(3 * j).ListIndex = 6 Or Combo1(3 * j).ListIndex = 7 Then
'判斷是否是第一個查詢條件，只有第一個查詢條件最前面需要用where
If j = 0 Then
'combo1(3*j+1) 為查詢關系
sqlqh = " where " & Combo1(3 * j).Text & Combo1(3 * j + 1).Text & Val(Text1(j).Text)
Else
'Combo1(3 * j - 1)為邏輯關系
sqlqh = sqlqh & " " & Combo1(3 * j - 1).Text & " " & Combo1(3 * j).Text & Combo1(3 * j + 1) & Val(Text1(j).Text)
End If
'查詢字段為非數字型，需要在text文本前后使用''
Else
If j = 0 Then
sqlqh = " where " & Combo1(3 * j).Text & Combo1(3 * j + 1).Text & "'" & Text1(j).Text & "'"
Else
sqlqh = sqlqh & " " & Combo1(3 * j - 1).Text & " " & Combo1(3 * j).Text & Combo1(3 * j + 1) & "'" & Text1(j).Text & "'"
End If
End If
End If
Next j
frmHouse.Show
Unload Me
End Sub
Private Sub Form_Load()
'讓窗體居中
Dim X0 As Long
Dim Y0 As Long
X0 = Screen.Width
Y0 = Screen.Height
X0 = (X0 - Me.Width) / 2
Y0 = (Y0 - Me.Height) / 2
Me.Move X0, Y0
'設置缺省值
For i = 0 To 8
Combo1(i).ListIndex = 0
Next i
Text1(0).Text = ""
Text1(1).Text = ""
Text1(2).Text = ""
End Sub
?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -