search - Change XSLT of the SearchResultWebPart during the FeatureActivated -


i have piece of code changes xslt of searchresultwebpart @ sharepoint 2010 search center result page (spfileitem - spfile of search result page) :

splimitedwebpartmanager wpmanager = spfileitem.getlimitedwebpartmanager(personalizationscope.shared); foreach (webpart wpitem in wpmanager.webparts) {     if (wpitem coreresultswebpart)     {       ((coreresultswebpart)wpitem).uselocationvisualization = false;       ((coreresultswebpart)wpitem).xsl = somexsl;       wpmanager.savechanges(wpitem); } spfileitem.update(); spfileitem.checkin(consts.checkincomment, spcheckintype.majorcheckin);

but, code doesn't work if called on feature activated (gives invalidoperationexception - incorrect object state). works in console application. after reflecting, found out there piece of code inside searchresultwebpart, checks if webpart wasn't initialized - throws mentioned above exception on setting xsl property. know how work problem out? me it'd quite convenient xsl change @ featureactivated...

i found solution problem, uses different way of setting xsl searchresultbasewebpart.

splimitedwebpartmanager wpmanager = spfileitem.getlimitedwebpartmanager(personalizationscope.shared); foreach (webpart wpitem in wpmanager.webparts) {     if (wpitem coreresultswebpart)     {       ((coreresultswebpart)wpitem).uselocationvisualization = false;       ((coreresultswebpart)wpitem).xsllink = spfileitem.web.url + @"/_layouts/xsl/myxsl.xsl";       wpmanager.savechanges(wpitem);     } } spfileitem.update(); spfileitem.checkin(consts.checkincomment, spcheckintype.majorcheckin);

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