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

Not even having dealt with .Net yet I'm not too sure but have looked into a
few things in the past.....Don't you need another line in the section:

row.BeginEdit()
row.Item("Desc1") = replacePipes(row.Item("Desc1"))
row.EndEdit()

-----Original Message-----
From: accessd-bounces at databaseadvisors.com
[mailto:accessd-bounces at databaseadvisors.com] On Behalf Of Griffiths,
Richard
Sent: 08 December 2005 10:47
To: Access Developers discussion and problem solving
Subject: Re: [AccessD] VB.Net, trying to update some records in Access

Gustav

not sure what you mean  - please expand

-----Original Message-----
From: accessd-bounces at databaseadvisors.com
[mailto:accessd-bounces at databaseadvisors.com] On Behalf Of Gustav Brock
Sent: 08 December 2005 10:22
To: accessd at databaseadvisors.com
Subject: Re: [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.


--
AccessD mailing list
AccessD at databaseadvisors.com
http://databaseadvisors.com/mailman/listinfo/accessd
Website: http://www.databaseadvisors.com


-- 
AccessD mailing list
AccessD at databaseadvisors.com
http://databaseadvisors.com/mailman/listinfo/accessd
Website: http://www.databaseadvisors.com