WideString Fields

I've connected an Access table to a Delphi7 programme by means of ADO.

The resulting ADOTable1 contains a field named Condition which happens to be a TWideString field.

This field can be either blank of it can contain 'AN'.

To peruse registers based on this field I have coded :

[If ADOTable1Condition.Value = 'AN'] or
[If ADOTable1Condition.Value = '']

but I obtain no response.

Could anyone advise how to handle TWideString Fields and the correct
code to use?.

Thanks in advance for any help received.

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