frselectdb.frm

使用 VB 编写访问 WinCC 软件的 SQL server 数据库的代码。

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 frSelectDB 
   Caption         =   "Select the Database using ADODC and Grid"
   ClientHeight    =   4710
   ClientLeft      =   45
   ClientTop       =   330
   ClientWidth     =   5835
   LinkTopic       =   "Form1"
   MDIChild        =   -1  'True
   ScaleHeight     =   4710
   ScaleWidth      =   5835
   WindowState     =   2  'Maximized
   Begin VB.TextBox txtDSN 
      Height          =   330
      Left            =   165
      Locked          =   -1  'True
      TabIndex        =   4
      Top             =   450
      Width           =   4590
   End
   Begin VB.CommandButton doOK 
      Caption         =   "Connect"
      Height          =   330
      Left            =   4830
      TabIndex        =   2
      Top             =   465
      Width           =   972
   End
   Begin MSDataGridLib.DataGrid DataGrid1 
      Bindings        =   "frSelectDB.frx":0000
      Height          =   2385
      Left            =   165
      TabIndex        =   1
      Top             =   900
      Width           =   4575
      _ExtentX        =   8070
      _ExtentY        =   4207
      _Version        =   393216
      AllowUpdate     =   0   'False
      HeadLines       =   1
      RowHeight       =   15
      BeginProperty HeadFont {0BE35203-8F91-11CE-9DE3-00AA004BB851} 
         Name            =   "MS Sans Serif"
         Size            =   8.25
         Charset         =   0
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      BeginProperty Font {0BE35203-8F91-11CE-9DE3-00AA004BB851} 
         Name            =   "MS Sans Serif"
         Size            =   8.25
         Charset         =   0
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      ColumnCount     =   2
      BeginProperty Column00 
         DataField       =   ""
         Caption         =   ""
         BeginProperty DataFormat {6D835690-900B-11D0-9484-00A0C91110ED} 
            Type            =   0
            Format          =   ""
            HaveTrueFalseNull=   0
            FirstDayOfWeek  =   0
            FirstWeekOfYear =   0
            LCID            =   1031
            SubFormatType   =   0
         EndProperty
      EndProperty
      BeginProperty Column01 
         DataField       =   ""
         Caption         =   ""
         BeginProperty DataFormat {6D835690-900B-11D0-9484-00A0C91110ED} 
            Type            =   0
            Format          =   ""
            HaveTrueFalseNull=   0
            FirstDayOfWeek  =   0
            FirstWeekOfYear =   0
            LCID            =   1031
            SubFormatType   =   0
         EndProperty
      EndProperty
      SplitCount      =   1
      BeginProperty Split0 
         BeginProperty Column00 
         EndProperty
         BeginProperty Column01 
         EndProperty
      EndProperty
   End
   Begin MSAdodcLib.Adodc Adodc1 
      Height          =   375
      Left            =   165
      Top             =   3975
      Visible         =   0   'False
      Width           =   4590
      _ExtentX        =   8096
      _ExtentY        =   661
      ConnectMode     =   0
      CursorLocation  =   3
      IsolationLevel  =   -1
      ConnectionTimeout=   15
      CommandTimeout  =   30
      CursorType      =   2
      LockType        =   3
      CommandType     =   1
      CursorOptions   =   0
      CacheSize       =   50
      MaxRecords      =   10
      BOFAction       =   0
      EOFAction       =   0
      ConnectStringType=   1
      Appearance      =   1
      BackColor       =   -2147483643
      ForeColor       =   -2147483640
      Orientation     =   0
      Enabled         =   -1
      Connect         =   ""
      OLEDBString     =   ""
      OLEDBFile       =   ""
      DataSourceName  =   ""
      OtherAttributes =   ""
      UserName        =   ""
      Password        =   ""
      RecordSource    =   ""
      Caption         =   "Adodc1"
      BeginProperty Font {0BE35203-8F91-11CE-9DE3-00AA004BB851} 
         Name            =   "MS Sans Serif"
         Size            =   8.25
         Charset         =   0
         Weight          =   400
         Underline       =   0   'False
         Italic          =   0   'False
         Strikethrough   =   0   'False
      EndProperty
      _Version        =   393216
   End
   Begin VB.Label Label1 
      Caption         =   "Selected database:"
      Height          =   285
      Left            =   165
      TabIndex        =   3
      Top             =   150
      Width           =   2625
   End
   Begin VB.Label Label2 
      Appearance      =   0  'Flat
      BackColor       =   &H00C0FFFF&
      Caption         =   "For WinCC we need the DSN of the WinCC project.In the grid all DSN are shown. Select the actual project with ""R"" at the end. "
      ForeColor       =   &H80000008&
      Height          =   585
      Left            =   165
      TabIndex        =   0
      Top             =   3330
      Width           =   4575
      WordWrap        =   -1  'True
   End
End
Attribute VB_Name = "frSelectDB"
Attribute VB_GlobalNameSpace = False
Attribute VB_Creatable = False
Attribute VB_PredeclaredId = True
Attribute VB_Exposed = False
Option Explicit
Dim m_SER As String
'Private Sub Adodc1_RecordsetChangeComplete(ByVal adReason As ADODB.EventReasonEnum, ByVal pError As ADODB.Error, adStatus As ADODB.EventStatusEnum, ByVal pRecordset As ADODB.Recordset)
'Debug.Print "OK"
'End Sub

Private Sub DataGrid1_RowColChange(LastRow As Variant, ByVal LastCol As Integer)
  
  If DataGrid1.Col = 0 Then
    txtDSN.Text = DataGrid1.Text
  End If
End Sub

Private Sub doOK_Click()
  Dim strDSN As String
  strDSN = txtDSN.Text
  If Len(strDSN) > 0 Then frMDIWinCCDB.CallBack (strDSN)
  Unload Me
End Sub

Private Sub Form_Load()
  m_SER = g_SER
  
  Err.Clear
  On Error Resume Next
  
  doOK.Enabled = False
  Dim i As Integer
  For i = 1 To DataGrid1.Columns.Count - 1
    DataGrid1.Columns.Remove i
  Next
  
  DataGrid1.Columns(0).DataField = "dbname"
  DataGrid1.Columns(0).Caption = "Database name"
  DataGrid1.Columns(0).Width = 4000
  DataGrid1.HoldFields
  
  If g_DBType = DBTYPE_RT Then
    Adodc1.ConnectionString = "Provider=SQLOLEDB.1;Integrated Security=SSPI;Persist Security Info=False;Initial Catalog=master;Data Source=" & m_SER & "\WINCC"
    Adodc1.RecordSource = "SELECT RTRIM(name) as dbname FROM sysdatabases WHERE name LIKE 'CC%'"
    Label2.Visible = True
  Else
    Adodc1.ConnectionString = "Provider=SQLOLEDB.1;Integrated Security=SSPI;Persist Security Info=False;Initial Catalog=CC_ExternalBrowsing;Data Source=" & m_SER & "\WINCC"
    Adodc1.RecordSource = "SELECT CatalogName as dbname FROM CCBrowsingCatalogs"
    Label2.Visible = False
  End If
  
  Adodc1.Refresh
  
  If Err.Number = 0 Then
    If Adodc1.Recordset.RecordCount > 0 Then
      Set DataGrid1.DataSource = Adodc1.Recordset
      txtDSN.Text = DataGrid1.Text
      doOK.Enabled = True
    End If
  End If

  Err.Clear
  On Error GoTo 0
End Sub