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Article #555

Re: Null database field testing in Delphi 2005

#555
From: Craig van Nieuwkerk
Date: Wed, 05 Jan 2005 05:50
14 lines
1229 bytes
In .NET you can use DBNull.Value

> In Delphi 5 I would test for a Null value in a database field using:
>
> if (dataSet['dataField'] = Null) then
>     do something;
>
> This worked fine.  In Delphi 2005 the compiler reports 'Null' is an
> undeclared identifier.  Can anyone tell me what replaces this in 2005?
> Thanks for any help.
>
> Ted
>
>
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From: "Craig van Nieuwkerk" <craigvn@dart.net.au>
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Subject: Re: Null database field testing in Delphi 2005
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