vb.net barcode reader code Part II Designing Types in visual C#.net

Printing PDF417 in visual C#.net Part II Designing Types

Both C# and the CLR allow for covariance and contra-variance of reference types when binding a method to a delegate . Covariance means that a method can return a type that is derived from the delegate s return type . Contra-variance means that a method can take a parameter that is a base of the delegate s parameter type . For example, given a delegate defined like this:

Microsoft Office Live is a new online service currently in beta that enables small businesses to create and maintain a professional Web presence. Office Live offers three service programs, enabling businesses to choose just what they need for their type of product or service:

1. 2.

The resulting output is rendered using SDDL. Add the optional showrights parameter to assist with converting the SDDL output more easily understood access control entries. You can, of course, see the set permissions using the normal Windows GUIs and using Process Explorer, as well.

You can use AND, OR, and NOT functions to combine conditions and set up different conditions. For example, let s say in the preceding example, you want to apply a 30 percent discount if the item was acquired between 10/1/2005 and 1/1/2006, and a 50 percent discount if it was older than 10/1/2006. You could do this with the AND function. The following formula contains an AND function (AND(logical1,logical2,...) that sets up the condition of dates between 10/1/2005 and 12/31/2006 (<1/1/2006) and a nested IF:

What is the distribution audience for the customizations Is the goal to move your solution from development to staging to production environments, or will the solution be offered by others through the Marketplace What areas do you anticipate changing Which of those areas are shared system components How many developers are on the project and need access to the files Do you need to uninstall the solution

1. 2. 3.