This print for content only-size & color not accurate 7" X 9-1/4" / casebound / malloy

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Note

As you explore the .NET collection types, you will notice that delegates are commonly used as parameters

to provide sorting and filtering of subitems.

Collectively, these examples have illustrated the core nuts and bolts of the delegate type. To

deepen your understanding of this programming construct, let’s now address the role of covariance.

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Understanding Delegate Covariance

As you may have noticed, each of the delegates created thus far point to methods returning simple

numerical data types (or void). However, assume you have a new Console Application named

DelegateCovariance that defines a delegate that can point to methods returning a custom class type

(be sure to include your Car/Radio type definitions into this new project):