How can i make query with a predicate that tests null column in Breeze?
breeze, javascript
Solution
Predicate expressions for null data property values do work as in your example, but I am guessing that in your query "region" is an instance of the region type. I will look into this in more detail, but for the time being I am guessing that you also have a "regionID" property or something like it. So maybe try:
EntityQuery.from("Territories").where("regionID", "==", null)
Problem
How can I make a query with a predicate that tests for null in Breeze? with a `Predicate.create("region", "==", null)` I get an 500 http error from server: Unable to perform operation: eqon types: I am using the Asp.Net Breeze Web Api Controller