SharePoint 2010 Custom Search Refiner for Contentclass

My client pointed out Yaroslav Pentsarskyy's post on Search Refiners last week and asked me to look into it.
So I implemented his solution and although it worked well, my client and I wanted more granularity for this search refiner, so I got to thinking that one thing that would work well would be the ContentClass property that holds such values as STS_Site and STS_ListItem_Announcement etc.


So I dusted off my XML Editor, cracked open the FilterCategories from the Refinement Panel (don't forget to un-check use default configuration, and went to work and here is what I ended up with:

<Category
   Title="Content Class"
   Description="Filter by contentclass"
   Type="Microsoft.Office.Server.Search.WebControls.ManagedPropertyFilterGenerator"
   MetadataThreshold="0"
   NumberOfFiltersToDisplay="2"
   MaxNumberOfFilters="0"
   SortBy="Custom"
   ShowMoreLink="True"
   MappedProperty="contentclass"
   MoreLinkText="show more"
   LessLinkText="show fewer" >
   <CustomFilters MappingType="ValueMapping"
     DataType="String"
     ValueReference="Absolute"
     ShowAllInMore="False">
     <CustomFilter CustomValue="Web Pages">
       <OriginalValue>STS_ListItem_WebPageLibrary</OriginalValue>
     </CustomFilter>
     <CustomFilter CustomValue="Announcements">
       <OriginalValue>STS_ListItem_Announcements</OriginalValue>
     </CustomFilter>
     <CustomFilter CustomValue="Contacts">
       <OriginalValue>STS_ListItem_Contacts</OriginalValue>
     </CustomFilter>
     <CustomFilter CustomValue="Disucssions">
       <OriginalValue>STS_ListItem_DiscussionBoard</OriginalValue>
     </CustomFilter>
     <CustomFilter CustomValue="Documents">
       <OriginalValue>STS_ListItem_DocumentLibrary</OriginalValue>
     </CustomFilter>
     <CustomFilter CustomValue="Events">
       <OriginalValue>STS_ListItem_Events</OriginalValue>
     </CustomFilter>
     <CustomFilter CustomValue="Gantt Tasks">
       <OriginalValue>STS_ListItem_GanttTasks</OriginalValue>
     </CustomFilter>
     <CustomFilter CustomValue="List Items">
       <OriginalValue>STS_ListItem_GenericList</OriginalValue>
     </CustomFilter>
     <CustomFilter CustomValue="Links">
       <OriginalValue>STS_ListItem_Links</OriginalValue>
     </CustomFilter>
     <CustomFilter CustomValue="Pictures">
       <OriginalValue>STS_ListItem_PictureLibrary</OriginalValue>
     </CustomFilter>
     <CustomFilter CustomValue="Surveys">
       <OriginalValue>STS_ListItem_Survey</OriginalValue>
     </CustomFilter>
     <CustomFilter CustomValue="Tasks">
       <OriginalValue>STS_ListItem_Tasks</OriginalValue>
     </CustomFilter>
     <CustomFilter CustomValue="XML Forms">
       <OriginalValue>STS_ListItem_XMLForm</OriginalValue>
     </CustomFilter>
     <CustomFilter CustomValue="Sites">
       <OriginalValue>STS_Web</OriginalValue>
     </CustomFilter>
   </CustomFilters>
 </Category>

Note: if you are concerned about Multilingualism then know that by telling the Refinement Panel Web Part to not use the default configuration you are hard-wiring a bunch of words that are used here (like 'show more' and 'show less') so keep that in mind.


Thanks again to Yaroslav Pentsarskyy for the mention on his new post about my resolution after I sent it to him.