DateCreated 和 DateModified 属性示例 (VB)

此示例通过向现有表添加新列以及创建新表来演示 DateCreated 和 DateModified 属性。 此示例需要 DateOutput 过程才能运行。

' BeginDateCreatedVB  
Sub Main()  
    On Error GoTo DateCreatedXError  
  
    Dim cat As New ADOX.Catalog  
    Dim tblEmployees As ADOX.Table  
    Dim tblNewTable As ADOX.Table  
  
    ' Connect to the catalog.  
    cat.ActiveConnection = "Provider='Microsoft.Jet.OLEDB.4.0';" & _  
        "Data Source='Northwind.mdb';"  
  
    With cat  
        Set tblEmployees = .Tables("Employees")  
  
        ' Print current information about the Employees table.  
        DateOutput "Current properties", tblEmployees  
  
        ' Create and append column to the Employees table.  
        tblEmployees.Columns.Append "NewColumn", adInteger  
        .Tables.Refresh  
  
        ' Print new information about the Employees table.  
        DateOutput "After creating a new column", tblEmployees  
  
        ' Delete new column because this is a demonstration.  
        tblEmployees.Columns.Delete "NewColumn"  
  
        ' Create and append new Table object to the Northwind database.  
        Set tblNewTable = New ADOX.Table  
        tblNewTable.Name = "NewTable"  
        tblNewTable.Columns.Append "NewColumn", adInteger  
        .Tables.Append tblNewTable  
        .Tables.Refresh  
  
        ' Print information about the new Table object.  
        DateOutput "After creating a new table", .Tables("NewTable")  
  
        ' Delete new Table object because this is a demonstration.  
        .Tables.Delete tblNewTable.Name  
    End With  
  
    'Clean up.  
    Set cat.ActiveConnection = Nothing  
    Set cat = Nothing  
    Exit Sub  
  
DateCreatedXError:  
    Set cat = Nothing  
  
    If Err <> 0 Then  
        MsgBox Err.Source & "-->" & Err.Description, , "Error"  
    End If  
  
End Sub  
  
Sub DateOutput(strTemp As String, tblTemp As ADOX.Table)  
    ' Print DateCreated and DateModified information about  
    ' specified Table object.  
    Debug.Print strTemp  
    Debug.Print "    Table: " & tblTemp.Name  
    Debug.Print "        DateCreated = " & tblTemp.DateCreated  
    Debug.Print "        DateModified = " & tblTemp.DateModified  
    Debug.Print  
End Sub  
' EndDateCreatedVB  

另请参阅

DateCreated 属性 (ADOX)
DateModified 属性 (ADOX)
过程对象 (ADOX)
过程集合 (ADOX)
视图对象 (ADOX)
视图集合 (ADOX)