Re: problem in creating TADODataSet at runtime in console application

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#2639

From: Vladimir Afanasyev
Date: Wed, 30 Apr 2003 10:47

32 lines
2109 bytes

Hi Niyazi,

"Niyazi Unugur" <unugurn@hotmail.com> wrote:
>When i try to create TADODataSet at runtime; codeguard gives an exception :
>"Method called on illegaly casted object"
>
>here is the line that throws this exception;
>TADODataSet *DataSet = new TADODataSet(NULL);
>
>I think this is just because of the NULL parameter. Since my application is
>console application i cannot use 'this' pointer as a parameter.
>
>What can i do?

You can use Variant type as a wrapper for IDispatch 
interface to ADO. It is common way for later binding.
In all cases ADO it is later binding.
Yo can see in my downloads:

DBvADO 1.01 for Sybase Adaptive Server Anywhere
http://codecentral.borland.com/codecentral/ccweb.exe/listing?id=19557

OpenSchema (ADO) for MS Access
http://codecentral.borland.com/codecentral/ccweb.exe/listing?id=19587

ADOAccess v.1.0 for MS Access files
http://codecentral.borland.com/codecentral/ccweb.exe/listing?id=19860

In this case best adviser is MSDN site or Microsoft Platform SDK.

Vladimir.

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