How to Pass array from one form to another

Hello Everyone,
I have an array defined like this ....
type array_type IS table of varchar2(4000) index by binary_integer;
v_arr array_type;
When I pass it next form I accept it like this...
eEmail IN owa_util.vc_arr
that works fine, as fas as user picked something......If user didn't pick anything....the form explodes....
How can I do error handling by doing this....
courses IN owa_util.vc_arr DEFAULT NULL
as DEFAULT NULL doesnt work in case of an array....
Thanks,
Harsimrat

and there is a fourth way in the database.
Create a package with those variables in the package-spec you wish to transfer. Then create set- and get-functions on this structure.
With this technique you can pass not only scalar-values - you can pass complex structures and a full set of data through an array for example

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At last - I've managed to get this to work! Is this documented anywhere at all - I just guessed it based on other people's code!
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null

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Dear all,
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Hi,
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Hi,
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How to Pass array from one form to another

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