📄 frmwizarddatasource.frm
字号:
VERSION 5.00
Begin VB.Form frmWizardDataSource
BorderStyle = 3 'Fixed Dialog
Caption = "Data Mining Wizard "
ClientHeight = 5190
ClientLeft = 45
ClientTop = 330
ClientWidth = 6870
BeginProperty Font
Name = "Arial"
Size = 8.25
Charset = 0
Weight = 400
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
LinkTopic = "Form1"
MaxButton = 0 'False
MinButton = 0 'False
ScaleHeight = 5190
ScaleWidth = 6870
ShowInTaskbar = 0 'False
StartUpPosition = 2 'CenterScreen
WhatsThisHelp = -1 'True
Begin VB.Frame fraWelcome
Height = 4935
Index = 0
Left = 120
TabIndex = 0
Top = 120
Width = 6615
Begin VB.Frame FraNavigation
Height = 735
Left = 360
TabIndex = 6
Top = 4080
Width = 5895
Begin VB.CommandButton cmdCancel
Caption = "&Cancel"
BeginProperty Font
Name = "Tahoma"
Size = 8.25
Charset = 0
Weight = 400
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 375
Left = 3240
TabIndex = 10
Top = 240
Width = 855
End
Begin VB.CommandButton cmdHelp
Caption = "&Help"
BeginProperty Font
Name = "Tahoma"
Size = 8.25
Charset = 0
Weight = 400
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 375
Left = 4560
TabIndex = 9
Top = 240
Width = 855
End
Begin VB.CommandButton cmdNext
Caption = "&Next >"
Enabled = 0 'False
BeginProperty Font
Name = "Tahoma"
Size = 8.25
Charset = 0
Weight = 400
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 375
Left = 1800
TabIndex = 8
Top = 240
Width = 855
End
Begin VB.CommandButton cmdBack
Caption = "< &Back"
BeginProperty Font
Name = "Tahoma"
Size = 8.25
Charset = 0
Weight = 400
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 375
Left = 480
TabIndex = 7
Top = 240
Width = 855
End
End
Begin VB.Frame fraWelcome
Height = 975
Index = 2
Left = 120
TabIndex = 4
Top = 3000
Width = 6375
Begin VB.Label lblWelcome
Caption = "Click on the button 'Connect to your database' to create a connection to the database containing the data to be analyzed."
BeginProperty Font
Name = "Tahoma"
Size = 8.25
Charset = 0
Weight = 400
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 615
Index = 2
Left = 120
TabIndex = 5
Top = 240
Width = 6135
WordWrap = -1 'True
End
End
Begin VB.Frame fraWelcome
Height = 2415
Index = 1
Left = 120
TabIndex = 1
Top = 240
Width = 6375
Begin VB.CommandButton cmdNewDataSource
Caption = "Connect to your database ..."
BeginProperty Font
Name = "Verdana"
Size = 8.25
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 375
Left = 960
TabIndex = 11
ToolTipText = "Select The Database"
Top = 1440
Width = 3950
End
Begin VB.Label lblWelcome
Caption = " "
BeginProperty Font
Name = "Tahoma"
Size = 8.25
Charset = 0
Weight = 400
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 255
Index = 1
Left = 120
TabIndex = 3
Top = 720
Width = 6135
WordWrap = -1 'True
End
Begin VB.Label lblWelcome
Caption = " Create Your Data Source . . ."
BeginProperty Font
Name = "Tahoma"
Size = 8.25
Charset = 0
Weight = 700
Underline = 0 'False
Italic = 0 'False
Strikethrough = 0 'False
EndProperty
Height = 255
Index = 0
Left = 120
TabIndex = 2
Top = 240
Width = 3375
End
End
End
End
Attribute VB_Name = "frmWizardDataSource"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
'Microsoft Service Component OLEDB Service Component 1.0 Type Library
'C:\Program Files\Common Files\System\OLE DB\oledb32.dll
Private msDataLink As DataLinks
Private ConnectionString As String
Private Sub cmdBack_Click()
frmWizardDataMiningAlgorithms.Show
Me.Hide
End Sub
Private Sub cmdCancel_Click()
Unload Me
frmWizardWelcome.Show
End Sub
Private Sub cmdNewDataSource_Click()
'Creates a new Data Source
If (OpenConnection = True) Then
cmdNext.Enabled = True
End If
End Sub
Private Sub cmdNext_Click()
frmWizardSingleTable.Show
Me.Hide
End Sub
Private Function OpenConnection() As Boolean
On Error GoTo ErrorHandler
' This sub uses MS Datalinks to build a connection string that is used to
' poulate the treeview
'
' Choose the provider Jet OLE 3 is Access '97
' OLE 4.0 is Access 2000
' Then select the database that you want to open and click ok.
' The library can be located at the location below.
' Microsoft Service Component OLEDB Service Component 1.0 Type Library
' C:\Program Files\Common Files\System\OLE DB\oledb32.dll
Dim varConnect As Variant
OpenConnection = False
If (msDataLink Is Nothing) Then
Set msDataLink = New DataLinks
End If
varConnect = msDataLink.PromptNew
If IsEmpty(varConnect) Or (varConnect = "") Then
Exit Function
Else
ConnectionString = varConnect
End If
'Create the Data Access Object
If DataAccessObject Is Nothing Then
Set DataAccessObject = New cDataAccessObject
End If
'Close the previous connection
If Not DataAccessObject.ConnectionObject Is Nothing Then
Set DataAccessObject.ConnectionObject = Nothing
End If
Set DataAccessObject.ConnectionObject = New ADODB.Connection
DataAccessObject.ConnectionObject.Open ConnectionString
'Store the Connection String Used
DataMiningServer.ConnectionStringUsed = ConnectionString
OpenConnection = True
Exit_ErrorHandler:
Exit Function
ErrorHandler:
ErrorManager.ErrorHandler Err, "OpenConnection.frmWizardDataSource"
Resume Exit_ErrorHandler
End Function
Private Sub Form_Load()
If DataMiningServer.ConnectionStringUsed <> "" Then
If DataAccessObject Is Nothing Then
Set DataAccessObject = New cDataAccessObject
End If
'Close the previous connection
If Not DataAccessObject.ConnectionObject Is Nothing Then
DataAccessObject.ConnectionObject.Close
Set DataAccessObject.ConnectionObject = Nothing
End If
'Use the previously stored connection string to open a new connection
Set DataAccessObject.ConnectionObject = New ADODB.Connection
DataAccessObject.ConnectionObject.Open DataMiningServer.ConnectionStringUsed
cmdNext.Enabled = True
End If
End Sub
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