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Problem reading long MS Access Memo fields

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This message was discovered on ASPFriends.com 'ngfx-oledb' list.

Ignacio Calvo

-- Moved from [aspngfreeforall] to [ngfx-oledb] by Marcie Jones <Click here to reveal e-mail address> --

When the Memo field is over 255 characters, OleDbDataAdapter doesn't
Fill well my DataTable (only the first 255 characters). I tried with
OleDbDataReader, GetChars and filling a StringBuilder, and it seems it
only has 255 characters; it doesn't reach the rest.

Please help!

Saludos from Spain! Ignacio Calvo

Reply to this message...

TBrewi@aol.com

Ignacio, Saludos from California!

I'm not having any problem reading back more than 255 chars from a memo field
in an Access basetable. I'm using both OleDbDataAdapter and OleDbDataReader
and I'm binding to DataGrids, DataLists, and Repeaters -- all in the usual
fashion. No special tricks. Are you sure there are more than 255 chars in
the memo fields in the database? I'm using a textbox to collect the data
from the user and I explicitly state the max chars (500) I'm willing to
accept....

<asp:textbox id="tbxDescription" runat="server" maxlength="500"
textmode="MultiLine"></asp:textbox>

-- Tim :)

Timothy M. Brewi

[Original message clipped]

Reply to this message...

Ignacio Calvo

I've found a workaround. The SQL SELECT I use joins 2 tables. When I
SELECT the tables separately and manage to "join" the data using
DataTables, the data is retrieved correctly. So it is a problem only
when directly requesting two joined tables, for example:

adp =3D New OleDbDataAdapter("SELECT * FROM T1 INNER JOIN T2 ON
T1.ID=3DT2.ID", cnx)

Is this a bug?

-----Mensaje original-----
De: Ignacio Calvo [mailto:Click here to reveal e-mail address]=20
Enviado el: mi=E9rcoles, 24 de julio de 2002 11:50
Para: ngfx-oledb
Asunto: [ngfx-oledb] Problem reading long MS Access Memo fields

-- Moved from [aspngfreeforall] to [ngfx-oledb] by Marcie Jones
<Click here to reveal e-mail address> --

When the Memo field is over 255 characters, OleDbDataAdapter doesn't
Fill well my DataTable (only the first 255 characters). I tried with
OleDbDataReader, GetChars and filling a StringBuilder, and it seems it
only has 255 characters; it doesn't reach the rest.
=20
Please help!
=20
Saludos from Spain! Ignacio Calvo

| [ngfx-oledb] member Click here to reveal e-mail address =3D YOUR ID=20
| http://www.aspfriends.com/aspfriends/ngfx-oledb.asp =3D JOIN/QUIT

Reply to this message...

	System.Data.DataTable
	System.Data.OleDb.OleDbDataAdapter
	System.Data.OleDb.OleDbDataReader
	System.Text.StringBuilder

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