Null values / empty values in a Paramet

Hello,
We are using BIRT 2.3 and are puzzled where to set a parameter so it won't have null values and / or empty values.
I have a List Box parameter and want that the null option and the empty option will not be shown.
I saw it in examples but I think with older BIRT versions.
How can I configure this.
It is really annoying.

Thanks

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Comments

TheRealDea

Are you talking about at the parm page when you choose preview?

egolan74

<blockquote class='ipsBlockquote' data-author="TheRealDea">Are you talking about at the parm page when you choose preview?</blockquote>
 
Yes, but also in the view itself. Where I can select type of view (html, pdf, etc.). 
 
More general, the Parameters Dialog.

mwilliams

Hi egolan74,

Is your parameter set to required or is it not required?

egolan74

<blockquote class='ipsBlockquote' data-author="mwilliams">Hi egolan74, 
 
Is your parameter set to required or is it not required?</blockquote>
 
We have many reports. In some of them the parameter is required and some not. 
most are List Box, so we get two more (unwanted) options. 
Some of the parameters have static values and some dynamic (from DataSet). 
 
We've noticed that when a parameter is required than there aren't the options of null or empty. 
Why is that? Why not like the earlier version? 
 
Thanks

mwilliams

egolan74, 
 
Your best bet is probably to create your own parameter page. Then you can handle null values however you want. This past forum post should help you out: 
 
<a class='bbc_url' href='http://www.birt-exchange.com/forum/designing-birt-reports/11722-parameter-null-value.html'>http://www.birt-exchange.com/forum/designing-birt-reports/11722-parameter-null-value.html</a> 
 
Good luck!