July 2015
Intermediate to advanced
1300 pages
87h 27m
English
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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:
Sub AddProduct(ByVal categoryReference As Category) Try Dim check = northwindContext.Products. Single(Function(p) p. ProductName = "Italian spaghetti") Catch ex As InvalidOperationException Try Dim prod As New Product With prod .ProductName = "Italian spaghetti" .QuantityPerUnit ...