DeleteRecord 和 MoveRecord 方法范例 (VB)

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DeleteRecord 和 MoveRecord 方法范例 (VB)

Public Sub DeleteRecordX()
    'Declare and instantiate object variables
    Dim objFileR As Record
    Dim objDestFolderR As Record
    Dim objDestFileR As Record
    Dim objDestFolderRS As Recordset
    Dim objStream As Stream
   
    Set objFileR = New Record
    Set objDestFolderR = New Record
    Set objDestFileR = New Record
    Set objDestFolderRS = New Recordset
    Set objStream = New Stream
   
    'Open a Record on a text file
    objFileR.Open "", "URL=http://websrv/folder/file.txt", _
        adModeReadWrite, adOpenIfExists Or adCreateNonCollection
       
    'Edit the contents of the text file
    MsgBox "Edit"
   
    objStream.Open objFileR, , adOpenStreamFromRecord
    Debug.Print "Source: " + objFileR.Source
    Debug.Print "Original text: " + objStream.ReadText
    objStream.Position = 0
    objStream.WriteText "New Text"
    objStream.Position = 0
    Debug.Print "New text: " + objStream.ReadText
    objStream.Flush
    objStream.Close
    objFileR.Close
   
    'Reopen Record to see new contents of text file
    objFileR.Open "file.txt", "URL=http://websrv/folder/", _
        adModeReadWrite, adOpenIfExists Or adCreateNonCollection
    objStream.Open objFileR, adModeReadWrite, adOpenStreamFromRecord
    Debug.Print "Source: " + objFileR.Source
    Debug.Print "Edited text: " + objStream.ReadText
   
    'Copy the file to a subfolder
    MsgBox "Copy"
   
    objFileR.CopyRecord , _
        "URL=http://websrv/folder/subfolder/file.txt", , , _
        adCopyOverWrite
   
    'Delete the original file
    MsgBox "Delete"
   
    objFileR.DeleteRecord
   
    'Move the file from the subfolder back to original location
    MsgBox "Move Back"
   
    objDestFolderR.Open "", "URL=http://websrv/folder/subfolder/", , _
        adOpenIfExists Or adCreateCollection
       
    Set objDestFolderRS = objDestFolderR.GetChildren
   
    objDestFolderRS.MoveFirst
   
    'Position current record at on the correct file
    Do While Not _
        (objDestFolderRS.EOF Or (objDestFolderRS(0) = "file.txt"))
        objDestFolderRS.MoveNext
    Loop
   
    'Open a Record on the currect row of the Recordset
    objDestFileR.Open objDestFolderRS
   
    'Do the move
    objDestFileR.MoveRecord , objDestFolderR.ParentURL + "/file.txt" _
        , , , adMoveOverWrite 'objDestFolderR.ParentURL
   
    MsgBox "All done"
End Sub

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