Help on form based on tables

Hi
I am new to Portal,
My problem is I have a form based on a table, Now I want to process the form after a validation (eg: username and password)
so I added two more new components to the form to get username and password and I tried to validate this by writing a procedure to the submit button before 'doinsert;'. Then I cant get the values of those two new fields by
uname:= p_session.get_value_as_VARCHAR2(
p_block_name => 'DEFAULT',
p_attribute_name => 'A_UNAME');
Anyone have a solution?
Thanks.

thanks for the clue, but what i want is to validate the username and password befor do insert what i tried is
declare
mid member.member_id%Type;
msg_id number;
user member.uname%Type;
pswd member.pwd%Type;
begin
msg_id := p_session.get_value_as_NUMBER(
p_block_name => 'DEFAULT',
p_attribute_name => 'A_U_ID');
     user := p_session.get_value_as_VARCHAR2(
p_block_name => 'DEFAULT',
p_attribute_name => 'A_PWD');
     pswd := p_session.get_value_as_VARCHAR2(
p_block_name => 'DEFAULT',
p_attribute_name => 'A_REPLY_TO');
     SELECT member.member_id INTO mid
     FROM member
     WHERE member.uname= user AND member.pwd= pswd;
     IF mid<>null THEN
          p_session.set_value(
               p_block_name => 'DEFAULT',
          p_attribute_name => 'A_MEMBER_ID',
          p_value => mid);
          doInsert;
          proc_update1(msg_id);
     END IF;
end;
but this gives an error!
help needed urgently!
thanks

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"HaiMing" <[email protected]> wrote in message
news:[email protected]...
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<web-resource-name>MySecureBit1</web-resource-name>
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<http-method>POST</http-method>
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<auth-method>FORM</auth-method>
<realm-name>default</realm-name>
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<form-login-page>/control/formbasedlogin</form-login-page>
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<role-name>customer</role-name>
</security-role>
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<security-role-assignment>
<role-name>
customer
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<principal-name>
customer_group
</security-role-assignment>
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