Adding Entities
Adding entities against an entity data model requires you to pass the instance of the entity to the Add
method exposed by the entity set. For example, in our demonstration scenario we have a Products
entity set exposing an Add
method. The following code shows how you can programmatically create a new product and add it to the object model:
First, the code checks if the product already exists based on the specified condition. This is accomplished invoking the Single
extension method, whose support is new in .NET Framework 4.0. It is something that you already saw in LINQ to SQL and not discussed thoroughly here. Notice how you simply ...
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