Talvez voce poderia utilizar as funções de strtodate e strtoint dentro de try 
.. except blocos. Se existe uma excepção, o valor não é uma data / número

com desculpas pelo meu  Português, espero ter ajudado.

Steve

-----Original Message-----
From: delphi-br@yahoogrupos.com.br
[mailto:delphi...@yahoogrupos.com.br]on Behalf Of dhsb
Sent: 28 May 2009 13:27
To: delphi-br@yahoogrupos.com.br
Subject: [delphi-br] Validar Celula de uma String Grid


Pessoal como posso validar o texto ao sair da celula de um string grid?
Exemplo verificar se a celula e um numero ou uma data...

Valeu!



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