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Visual Basic 2015 Unleashed
book

Visual Basic 2015 Unleashed

by Alessandro Del Sole
July 2015
Intermediate to advanced content levelIntermediate to advanced
1300 pages
87h 27m
English
Sams
Content preview from Visual Basic 2015 Unleashed

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 ...

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Publisher Resources

ISBN: 9780134196664Purchase book