List View filtered by multiple params (one from cookie) - works fine when groups are expanded initially, but hides filtered items when collapsed and then expanded.

Question

Hello!
I have a page with a list view web part. I am applying multiple filter parameters to it: I have to display documents for all US locations (general) and also filtered view of documents for user's office location. I am setting the user location Cookie and
i have configured webpart with Param to read it. Second filter value is hard-coded (Non-specific location). It all works FINE when i set the list View to expand all groups by default.  The problem starts when I set it to be collapsed from the start: 
Collapsed group shows correct number of items to be inside but when i expand it, the 1 extra LOCAL item filtered by {PARAM}  is missing from inside this expanded group. Only items filtered by a "hardcoded text param" are being shown.  And
again - when i change the view and set it to be expanded by default - ALL items are being shown without any problem! Only thing that breaks it - setting of collapsed-expanded for this view groups. nothing else.
Any suggestion on how to work with this thing?
I can't make all groups expanded by default - too many documents, but it only time when it works.
I tried changing view design, other characteristics, but nothing makes it change the behavior so far.
I really want o avoid creating custom "hardcoded" views for each location where location is predefined instead of dynamically read it from cookie. For me it looks like something is connected with PARAM as only these items are affected by this weird
behavior. Thank you in advance!

Answer 1

Hi Olga
I have tried the method you have mentioned, but the jquery function is not working to collapse the groups.
I have tried 2 approaches, but none of them is working fully:
1) Raising the Click event as follows
for (var i = 0; i < links.length; i++)
                     if (links[i].href == "javascript:" && links[i].onclick.toString().indexOf("ExpCollGroup")
> -1)
                           links[i].click();
2) ExpCollGroup()
Please suggest or send the correct method to collapse