OpenSchema and GUID fields

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#3206

From: Mark Guerrieri
Date: Fri, 06 Dec 2002 03:27

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I am using TADOConnection->OpenSchema to retrieve schema information from a
Visual Foxpro database using the Visual Foxpro OLEDB provider.  I hook the
returned TADODataSet to a TDBGrid and everything is fine, until...

If I access a Schema that returns a GUID field, such a s siColumns, then I
try to drag a column in the grid containing the TGuidField data, I get an
access violation.  If I set the TGuidField's OnGetText event to just return
"{GUID}" then everything works, but if I try to access the
TGuidField->AsString from within OnGetText or omit the OnGetText handler
alltogether, I get an access violation.  It has no problems when initially
displaying the grid, only when a column move causes the grid to have to
retrieve the field's value and I don't override OnGetData.

Any ideas?

Mark Guerrieri
mguerrieri@cmsgrp.com

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Subject: OpenSchema and GUID fields
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