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'Invalid value for field' Error

ziche
ziche asked
on
Medium Priority
1,900 Views
Last Modified: 2012-05-04
I have a form that access a table through a TADOQuery control which has its contents edited through a Data Grid.

It was working fine until I added a calculated field to the TADOQuery and inserted code in its OnCalcFields event like this...

with ADOQUERYTABLEX do begin

      ADOQUERYTABLEXnewfield.Value
      :=  FieldByName('FIELDY').Value * FieldByName('FIELDZ').Value ;

end;

Now whenever I try to assign any values to the table's other fields, the following exception is raised.

"Invalid value for field 'FIELDX' "

Whats going on?
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Top Expert 2004
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