This isn't a Spreadsheet::WriteExcel problem as such. The data_validation() value parameter requires an array ref of values but you are passing an array ref with a single string value:

Something like the following should work: 

    my @columnEvidence;

    foreach my $e (@{$xmlData->{columnEvidence}})
    {
        push @columnEvidence, $e;
    }

    ...

    $worksheet[$counterWorkSheet]->data_validation('E'.$counterRow,
    {
        validate => 'list',
        value    => [ @columnEvidence ],
    });

    # Or:
        value    => \@columnEvidence,

[download]

Or skip the accumulation and just use the array ref directly: 

        value    => $xmlData->{columnEvidence},

[download]

--
John.

In reply to Re: Data_validation in Spreadsheet::WriteExcel by jmcnamara
in thread Data_validation in Spreadsheet::WriteExcel by sushi2k

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