The Entity Data Model file (.edmx file) must be updated to support inheritance mapping for Products and Componets.

You need to add the following code to the \Model\Model.edmx file:
* the code in line EX243 that maps the Product type
* the code in line EX250 that maps the Component type

What should you do?

A.
Insert the following code at line EX243:
<Condition ColumnName=”ProductType” IsNull=”false” />
Insert the following code at line EX250:
<Condition ColumnName=”PartType” IsNull=”false” />

B.
Insert the following code at line EX243:
<Condition ColumnName=”ProductType” IsNull=”true” />
Insert the following code at line EX250:
<Condition ColumnName=”PartType” IsNull=”true” />

C.
Insert the following code at line EX243:
<Condition ColumnName=”ProductType” IsNull=”false” />
Insert the following code at line EX250:
<Condition ColumnName=”PartType” IsNull=”true” />

D.
Insert the following code at line EX243:
<Condition ColumnName=”ProductType” IsNull=”true” />
Insert the following code at line EX250:
<Condition ColumnName=”PartType” IsNull=”false” />