PRB: Appending Fields to a Recordset Generates an Error
PSS ID Number: 223771
Article Last Modified on 8/23/2001
The information in this article applies to:
- ActiveX Data Objects (ADO) 2.0
- ActiveX Data Objects (ADO) 2.01
- ActiveX Data Objects (ADO) 2.1
- ActiveX Data Objects (ADO) 2.5
- ActiveX Data Objects (ADO) 2.6
- ActiveX Data Objects (ADO) 2.7
This article was previously published under Q223771
SYMPTOMS
If you try to append Fields to an opened Recordset, you receive the following run-time error:
Run-time error '3219':
The operation requested by the application is not allowed in this context.
In ActiveX Data Objects version 2.7, you receive the following run-time error:
Run-time error '3219':
Operation is not allowed in this context.
CAUSE
From the ADO Help:
"Calling the fields.Append method for an open Recordset or a Recordset where the ActiveConnection property has been set, will cause a run-time error. You can only append fields to a Recordset that is not open and has not yet been connected to a data source. Typically, these are new Recordset objects that you create with the CreateRecordset method or by explicitly assigning a new Recordset object to an object variable."
RESOLUTION
There are two workarounds to getting additional Fields appended to a Recordset object.
- Create the Recordset from scratch, creating all the necessary Fields, then open the custom recordset and populate it with the necessary data:
Dim rst As New ADODB.Recordset
rst.Fields.Append "xx1", adInteger
rst.Fields.Append "xx2", adChar, 5
rst.Open
For Each ofld In rst.Fields
Debug.Print ofld.Name
Next
- Use the Shape Provider Service to append the additional Fields on at the time the recordset is open. This sample uses the Biblio.mdb:
Dim rst As New ADODB.Recordset
rst.Open "SHAPE {SELECT author FROM authors}" & _
"APPEND NEW adChar(10) NewCol1, NEW adChar(10) NewCol2", _
"Provider=MSDATASHAPE" & _
";Data Provider=MSDASQL" & _
";Data Source=<your_dsn>" & _
";User ID=;Password=;", _
adOpenStatic, adLockBatchOptimistic
For Each ofld In rst.Fields
Debug.Print ofld.Name
Next
rst.AddNew Array("author", "NewCol1", "NewCol2"), _
Array("Detroit", "string1", "string2")
rst.MoveFirst
While rst.EOF <> True
Debug.Print rst!author, rst!NewCol1, rst!NewCol2
rst.MoveNext
Wend
STATUS
This behavior is by design.
Additional query words: column
Keywords: kbDatabase kbDSupport kberrmsg kbprb KB223771
Technology: kbADO200 kbADO201 kbADO210 kbADO250 kbADO260 kbADO270 kbADOsearch kbAudDeveloper