Find out the given internal name of the custom field....
SharePoint search crawler identifies automatically all fields in a given contend source. This will work for all contend types the SharePoint search server can handle per default or an Ifiler is installed. Of cause SharePoint user defined fields in lists or document libraries are crawled.
There is an MSDN article that describes how to use custom fields in core search result webpart: LINK. It’s just an easy doing, you have to put you custom field to the field list in the Display Properties node of the search results webparts and modify the XSLT transformation (XSLT) to display the custom property. Details see the link above.
But there a two little catches: first is that you have to map the crawled property that includes your customer field to a managed property to use it in search results. But that’s not a real big thing. You can do this using PowerShell or via SharePoint central admin. For example see my post: Bring up crawled contend to the user or this MSDN article: LINK. But to do this you have to find out which crawled property represents you custom field. For this you have to find out the static name of the field. Of cause there are several ways to reach this goal. I used SharePoint Manager; a free tool you can download from codeplex: LINK.
Open SharePoint Manager on you SharePoint Server, navigate to the list containing your custom field and click the field. In the right section you see the details of the selected field. In the cell static name you will find the value needed:
|(this is SharePoint Manager on a SharePoint 2007 Server. It works similar in a SP 2010 environment)|
In my demo case the field name is “2011 Fällig” and the static name is “_x0032_011_x002c__x0020_F_x00e4_”
Another way to find out the static name is to analyze the URL. To do this go to list settings -> click on the column name in which you are interested -> on the change column page the URL will ends with the static name:
This will work fine for simple field names, but you see that it can be horrible in case of complex field names.
So know we can use the static name to find out the crawled property. For example via PowerShell. If you use PowerShell it’s important to know, that the system puts an “ows_” to the static name of the field to name the crawled property. So our crawled property looks like “ows__x0032_011_x002c__x0020_F_x00e4_”. The PowerShell call in my demo case is:
Get-SPEnterpriseSearchMetadataCrawledProperty -searchapplication b835108f-5a59-4348-9cfb-c71adc1415b0 -category SharePoint -Name ows__x0032_011_x002c__x0020_F_x00e4_
Another and of cause in this case easer way is using the search function for crawled properties in the search service administration section:
Now that we have the name of the crawled property containing the contend of the custom list field we can map it to a managed property and use it in SharePoint search for filtering, display it in search core results ore what else…