I'm trying to do this:

queryable.Where(i => i["_template"] == templateId);

Where templateId is a Guid string, but it doesn't work. However, this does work:

queryable.Where(i => i["_templatename"] == templatename);

What do I need to do in order to filter by ID?

P.S. I realise I can use the typed template ID property, but I need the field name to be dynamic.

  • 1
    Could you try to execute your query in Luke? Link to application getopt.org/luke Nov 15, 2017 at 17:04
  • Also _template field in index stores value like c6576836910c4a3dba03c277dbd3b827 Nov 15, 2017 at 17:09

2 Answers 2


This probably isn't working because the value stored inside i["_template"] is the parsed GUID value from the index.

Try using:


This will convert any GUID to the format which is stored inside the search index.


Can't you do something mode along the lines of:

var predicate = PredicateBuilder.True<T>();

predicate = predicate.Where(i => i.TemplateId = templateId);

var results = queryable.Where(predicate);

There is more info on this here: https://doc.sitecore.net/sitecore%20experience%20platform/developing/developing%20with%20sitecore/search%20and%20item%20buckets/linq%20to%20sitecore

  • as per my question, I realise I can do this, but I need the property name to be dynamic. i.e. it's not just the template id I might want to search on, it might be a custom droptree field Nov 15, 2017 at 18:19
  • Sorry David I missed what you meant by that. Looks like you have a solution. Nov 16, 2017 at 1:36

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