Friday, July 11, 2014


Hi Folks

Today i encountered an error during update records using EntityFramework 5.Fortunately we found a quick fix.

This is an error we encountered:

Unable to update the EntitySet Table because it has a DefiningQuery and no <InsertFunction> element exists in the <ModificationFunctionMapping> element to support the current operation

In this quick post you are going learn the way to overcome the titled error.

Fix for an issue as shown below:

Simple solution to this error is to create database tables with primary keys.

Simple to fix.


To know more about MVC kindly go through with the links given below:




Sachin Kalia 


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