Display Data After Submit, but ....

Hi. I've tried this option and works ok, when I put for example an id number 987654-5, it's show me the result, but.. if y press the search button and the shearch box is blank it's show me all the data!!!. Obviosly I only want to show the data asociated to the id. How can I configure this?. I've tried the options but I can't do it. thanks.

Hi. The option that you say me, all the user have to be registered, is not posible, I don't have the registered option activated, only public visitors.

So, I have a little know of code, and I tried the way you show me inserting the code "if(ds=="")return;" but don't work, still show me all the data.

The grid.js in my site is in /components/com_grid/js/grid.js not in components/js/grid.js as you said before.

grid.js the code was (only the last lines)
______________________________________________________

//url+="&ajax=1&tmpl=component";
url+="&ajax=1"
//alert(sf+' '+ds+' '+grid_url+' '+id);


SimpleAJAXCall(url,SimpleAJAXCallback, '', 'data_listings'+id);
}
______________________________________________________


now with the code you give me
______________________________________________________

//url+="&ajax=1&tmpl=component";
url+="&ajax=1"
//alert(sf+' '+ds+' '+grid_url+' '+id);

if(ds=="")return;

SimpleAJAXCall(url,SimpleAJAXCallback, '', 'data_listings'+id);
}
______________________________________________________

but don't work. I'm doing something wrong??, thanks.
any ideas?
Thanks. I apreciated your help.

Yes, I'm using the advanced filter option, and advanced search option, I forced to "exact" search, deleting the lines 577 and 579 in GridBuilder.php, with this I only have the exact search option in frontend, so if the user enter an invalid number don't show anything, works ok, but if the search box is empty and does the search It's show me all the entries! , I'm confused how to proced,


\n<option value="default" '; if($this->advSearchOption == "default")$search_form .='selected'; $search_form .='>'.JText::_('JX_DEFAULT_SEARCH').'</option>
\n<option value="exact" '; if($this->advSearchOption == "exact")$search_form .='selected'; $search_form .='>'.JText::_('JX_EXACT_SEARCH').'</option>
\n<option value="begins" '; if($this->advSearchOption == "begins")$search_form .='selected'; $search_form .='>'.JText::_('JX_BEGINS_WITH').'</option>


to this , "exact" search only

\n<option value="exact" '; if($this->advSearchOption == "exact")$search_form .='selected'; $search_form .='>'.JText::_('JX_EXACT_SEARCH').'</option>


I'm little closer but still I need this feature, another ideas why don't work with the code you give me?...
I'm still trying

thanks a lot.