Embedded Searchlist Parameters

I have a search list control which requires a "assocType" parameter. The control is on a Wizard and the parameter is passed to the wizard via task flow in a KVC and accessed like so...

Code:


Enquiry.ReplacementParameters["assocType"].Value.ToString();


I have accessed the SearchList control in the wizard like this...

Code:


FWBS.OMS.UI.Windows.ucSearchControl s = EnquiryForm.GetControl("schAssociate") as FWBS.OMS.UI.Windows.ucSearchControl;


and I can 'refresh' the search list like this...

Code:


s.Search();


How do I pass the "assocType" paramater from the KVC into the searchlist. I've noticed that the search list control has a SetParameters method that takes in a KVC, so I've written the following on the Rendering Event of the Wizard

Code:


FWBS.Common.KeyValueCollection _kvc = new FWBS.Common.KeyValueCollection();
string assocType = Enquiry.ReplacementParameters["assocType"].Value.ToString();
_kvc.Add("@assocType", assocType);
FWBS.OMS.UI.Windows.ucSearchControl s = EnquiryForm.GetControl("schAssociate") as FWBS.OMS.UI.Windows.ucSearchControl;s.SetParameters(_kvc);
s.Search();


But when I call the wizard I get an Object Reference error on

Code:

s.SetParameters(_kvc);

It may be that the parameters have been setup incorrectly in the Search list. As well as AssocID the search list also needs FileID - BoundValue is

Code:

%fileID%

. How should @AssocType be bound?What steps do I need to take to get this to work?
many thanks
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Hi Mike, Not sure where the ORNS is coming from can you test that s is not null. I've previously done something similar I would set the search list parameters to be the Enquiries replacement parameters though.

Code:


s.SetParameters( Enquiry.ReplacementParameters)


Regards Richard.
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that was the problem, it was null at times during the rendering, I've wrapped it up in an if (s != null) and the search lists populates after rendering.
thanks for your help