[AccessD] VB.Net, trying to update some records in Access

Hi David and Richard

Why all the Tables and DataSet fuzz? 
Why not use a simple Recordset?

/gustav

>>> R.Griffiths at bury.gov.uk 08-12-2005 10:28:23 >>>
Hi

I believe you need to have an update command associated with your
dataadapter.
da.updatecommand("SQL to update the database - e.g. Update ItemMast set
......" (there is an inset and delete command as well)
At the moment you are simply updating the disconnected dataset/recordset
- you need to explicitly write the changes to the BE.
Sorry I can't add more as I use a different approach for dataaccess (a
DAL (data access layer) dll that sort of does it all for me) 
Loads of stuff out there for exact code examples.

HTH

Richard 
-----Original Message-----
From: accessd-bounces at databaseadvisors.com 
[mailto:accessd-bounces at databaseadvisors.com] On Behalf Of David McAfee
Sent: 08 December 2005 05:48
To: Access Developers discussion and problem solving
Subject: Re: [AccessD] VB.Net, trying to update some records in Access


I found that after I sent off the message. This is currently what I am
working with:


Dim row As DataRow
Dim ds As DataSet
Dim da As OleDbDataAdapter
Dim conn As OleDbConnection
Dim Connstr As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=C:\MOMS_UPDATE\MOMS_UPDATE.MDB;Persist Security Info=False"

Dim mySQL As String = "SELECT ItemNo, Desc1 FROM Itemmast WHERE Desc1
Like " & Chr(34) & "%|%" & Chr(34) & ";"

Try
   conn = New OleDbConnection(Connstr)
   da = New OleDbDataAdapter(mySQL, conn)
   ds = New DataSet
   da.Fill(ds)

   For Each row In ds.Tables(0).Rows
      row.BeginEdit()
      row.Item("Desc1") = replacePipes(row.Item("Desc1"))
   Next

   da.Update(ds.Tables(0))

   MessageBox.Show("Done")

Catch ex As Exception
   MessageBox.Show("Error " & Err.Number & " : " &
ex.Message.ToString()) End Try


The code runs through without any errors, only the Access table is never
updated. Gawd, I miss DAO.

The code is just a small sample test of a larger project. This project
takes cdb tables from a pocket PC then puts them into an Access table,
which is read into datasets that are passed to a web service which
"synchronizes" with a SQL Server database. and data is brought back in
reverse order. One table has an item description field which contains
apostrophes which were hanging up a process. These apostrophes were
converted to Pipes and I want to simply run this function on the data
before it is pumped back into the PPC.