Ejemplo del método GetString (VB)

Se aplica a: Access 2013, Office 2013

En este ejemplo se muestra el método GetString.

Supongamos que está depurando un problema de acceso a datos y desea imprimir rápida y fácilmente el contenido actual de un pequeño objeto Recordset.

 
'BeginGetStringVB 
 
 'To integrate this code 
 'replace the data source and initial catalog values 
 'in the connection string 
 
Public Sub Main() 
 On Error GoTo ErrorHandler 
 
 ' connection variables 
 Dim Cnxn As ADODB.Connection 
 Dim rstAuthors As ADODB.Recordset 
 Dim strCnxn As String 
 Dim strSQLAuthors As String 
 Dim varOutput As Variant 
 
 ' specific variables 
 Dim strPrompt As String 
 Dim strState As String 
 
 ' open connection 
 Set Cnxn = New ADODB.Connection 
 strCnxn = "Provider='sqloledb';Data Source='MySqlServer';" & _ 
 "Initial Catalog='Pubs';Integrated Security='SSPI';" 
 Cnxn.Open strCnxn 
 
 ' get user input 
 strPrompt = "Enter a state (CA, IN, KS, MD, MI, OR, TN, UT): " 
 strState = Trim(InputBox(strPrompt, "GetString Example")) 
 
 ' open recordset 
 Set rstAuthors = New ADODB.Recordset 
 strSQLAuthors = "SELECT au_fname, au_lname, address, city FROM Authors " & _ 
 "WHERE state = '" & strState & "'" 
 rstAuthors.Open strSQLAuthors, Cnxn, adOpenStatic, adLockReadOnly, adCmdText 
 
 If Not rstAuthors.EOF Then 
 ' Use all defaults: get all rows, TAB as column delimiter, 
 ' CARRIAGE RETURN as row delimiter, EMPTY-string as null delimiter 
 varOutput = rstAuthors.GetString(adClipString) 
 ' print output 
 Debug.Print "State = '" & strState & "'" 
 Debug.Print "Name Address City" & vbCr 
 Debug.Print varOutput 
 Else 
 Debug.Print "No rows found for state = '" & strState & "'" & vbCr 
 End If 
 
 ' clean up 
 rstAuthors.Close 
 Cnxn.Close 
 Set rstAuthors = Nothing 
 Set Cnxn = Nothing 
 Exit Sub 
 
ErrorHandler: 
 ' clean up 
 If Not rstAuthors Is Nothing Then 
 If rstAuthors.State = adStateOpen Then rstAuthors.Close 
 End If 
 Set rstAuthors = 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 
'EndGetStringVB