AbsolutePage、PageCount、および PageSize プロパティの例 (VB)
'BeginAbsolutePageVB
'To integrate this code
'replace the data source and initial catalog values
'in the connection string
Public Sub Main()
On Error GoTo ErrorHandler
'recordset and connection variables
Dim rstEmployees As ADODB.Recordset
Dim Cnxn As ADODB.Connection
Dim strCnxn As String
Dim strSQL As String
'record variables
Dim strMessage As String
Dim intPage As Integer
Dim intPageCount As Integer
Dim intRecord As Integer
'Open connection
Set Cnxn = New ADODB.Connection
strCnxn = "Provider='sqloledb';Data Source='MySqlServer';" & _
"Initial Catalog='Pubs';Integrated Security='SSPI';"
Cnxn.Open strCnxn
' Open employee recordset
' Use client cursor to enable AbsolutePosition property
Set rstEmployees = New ADODB.Recordset
strSQL = "employee"
rstEmployees.Open strSQL, strCnxn, adUseClient, adLockReadOnly, adCmdTable
' Display names and hire dates, five records at a time
rstEmployees.PageSize = 5
intPageCount = rstEmployees.PageCount
For intPage = 1 To intPageCount
rstEmployees.AbsolutePage = intPage
strMessage = ""
For intRecord = 1 To rstEmployees.PageSize
strMessage = strMessage & _
rstEmployees!fname & " " & _
rstEmployees!lname & " " & _
rstEmployees!hire_date & vbCr
rstEmployees.MoveNext
If rstEmployees.EOF Then Exit For
Next intRecord
MsgBox strMessage
Next intPage
' clean up
rstEmployees.Close
Cnxn.Close
Set rstEmployees = Nothing
Set Cnxn = Nothing
Exit Sub
ErrorHandler:
' clean up
If Not rstEmployees Is Nothing Then
If rstEmployees.State = adStateOpen Then rstEmployees.Close
End If
Set rstEmployees = Nothing
If Not Cnxn Is Nothing Then
If Cnxn.State = adStateOpen Then Cnxn.Close
End If
Set Cnxn = Nothing
If Err <> 0 Then
MsgBox Err.Source & "-->" & Err.Description, , "Error"
End If
End Sub
'EndAbsolutePageVB
参照
AbsolutePage プロパティ (ADO)
PageCount プロパティ (ADO)
PageSize プロパティ (ADO)
Recordset オブジェクト (ADO)