Deriving Exception Classes in C#

Render Quick Response Code in C# Deriving Exception Classes

Pay special attention to the way that the type parameter T is declared. It is preceded by the keyword out. When used in this context, out specifies that T is covariant. Because T is covariant, GetObject( ) can return a reference of type T or a reference of any class derived from T. Although covariant on T, IMyCoVarGenIF is implemented just like any other generic interface. For example, here it is implemented by MyClass:

The Corrigent CM-4000 line of Packet Transport Switches (PTS) are packetbased multiservice nodes that support the complete range, from 100% circuit traffic, to 100% packet traffic, all on the same device. The CM-4000 provides efficient packet-based transport for all services including Ethernet, Packet over SDH/SONET (PoS), Frame Relay, ATM and Fiber Channel with full support for all TDM interfaces and SONET/SDH at all data rates. With a 160Gbps or 320 Gbps switching capacity it supports Ring, Linear, and Mesh topologies and scales up to 100Gbps thru link aggregation or ring bonding. It also has Layer 1 and Layer 2 interworking functions. The CM-4000 comes in two sizes, 14 and 6 I/O slot versions; both are 19" ANSI and NEBs compliant. The Corrigent PTS line was designed for data-centric applications and supports the native transport of Ethernet frames and other data services as packets (without requiring the mapping of Ethernet frames into TDM). When deployed in ring topologies, it relies on RPR to create a lossless shared-media that allows for statistical multiplexing of both data and TDM traffic over the same packet transport infrastructure. Corrigent incorporates RPR with MPLS, PWE3, Ethernet, and SONET/SDH to deliver a packet-based transport platform for metro and regional applications. Corrigent has been an active advocate of RPR since it s inception as contributors to and editors

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The next step in the configuration of Planning Server is adding the users. Users must be imported or added to Planning Server before they can be assigned to roles or access data through the front-end Excel forms. The fourth link on the left pane of the Planning Administration Console page is called Users. This link opens the Users Management page, as shown in Figure 7-6. There are two options available at the bottom of this page to add users to the Planning Server: Add and Import.

Your needs might be more proprietary, however. Rather than using Microsoft Live or Google Docs to collaborate on documents, maybe your company needs a special application in service vehicles. In such cases, you simply need to turn to a service like Force.com and see if anyone has already created the application you need. If not, assign your programmers to the problem. Google Android is one way to keep your programmers busy.

public int CompareTo(type v)