Listbox: Applying Deselect All on rerun

There is a report where users can select multiple product lines from a listbox. When they rerun the report, the previous selection is remembered.

Users want the selection to be automatically cleared on re-run.

Getting ready

Select any existing report or create a new sample report that filters on Product Lines. Create a Listbox type of prompt for the product line. Set its multi-select property to Yes.

How to do it...

1. Wrap the listbox in a span similar to previous recipes; that is, create two HTML items around the listbox and define span A1.

   

2. Now define a new HTML item in prompt page footer as follows:

   <script>
   var theSpan = document.getElementById("A1");
   var a = theSpan.getElementsByTagName("A");
   for( var i = a.length-1; i >= 0; i-- )
   { var link = a[i];
   if( typeof(link.id) == "string" && link.id.match(/PRMT_(SV|LIST)_LINK_DESELECT_/) )
   {link.fireEvent("onclick");}
   }
   </script>

3. Run the report for any product line. Then re-run the report...