Updated: 15/09/2002; 12:48:43 a.m..
Python Community Server (development progress)
A weblog about programming in Python, C#, Java, Perl and C++ - and the occasional comment on PyCS development

Friday, 19 July 2002

Does anyone know if Microsoft has a public bug database somewhere?  I think I've finally figured out what provoke these annoying blank OLEDB error messages that have been keeping me from doing anything useful in C# for the last few weeks and it would be nice to know whether I'm doing something wrong or this is a bug.

The following code will throw an OleDbException with a blank Message field and an InnerException of "Multiple-step OLE DB operation generated errors. Check each OLE DB status value, if available. No work was done.":

OleDbCommand c = new OleDbCommand(
    "INSERT INTO tableName ( memoField ) VALUES ( @memoField )",
    connection );
c.Parameters.Add( "@memoField", OleDbType.LongVarChar ).Value = "";

This is using the Jet 4.0 driver to insert data into an Access (MDB) database.  memoField is a field of Access type Memo - a long varchar field.  It's set as:

Required: No
Allow Zero Length: Yes
Unicode Compression: Yes

(with blank values for 'Format', 'Caption', 'Default Value', 'Validation Rule' and 'Validation Text').

Can anyone help me out here?

12:05:57 AM    comment []

© Copyright 2002 Phillip Pearson.
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