Sign In | Subscribe
Start learning today, and be successful in your academic & professional career. Start Today!
Loading video...
This is a quick preview of the lesson. For full access, please Log In or Sign up.
For more information, please see full course syllabus of Visual Basic
  • Discussion

  • Study Guides

  • Table of Contents

Bookmark and Share

Start Learning Now

Our free lessons will get you started (Adobe Flash® required).
Get immediate access to our entire library.

Sign up for

Membership Overview

  • Unlimited access to our entire library of courses.
  • Search and jump to exactly what you want to learn.
  • *Ask questions and get answers from the community and our teachers!
  • Practice questions with step-by-step solutions.
  • Download lesson files for programming and software training practice.
  • Track your course viewing progress.
  • Download lecture slides for taking notes.
  • Learn at your own pace... anytime, anywhere!

Creating a Data Type

  • Implementing IComparable, IComparer and IEquatable is important for your own data types if you want to use them in a generic list
  • When creating your own data types, be sure to code all the functions you’ll need for now and in the future
  • If there are limits on your data types, you can avoid many problems by weeding them out in the Constructors
  • Using InvalidCastException, ArgumentOutOfRangeException and other common exceptions allow others to use the standard errors without having to deal with unique error types
  • You’ll have to decide if a narrowing conversion drops precision or throws an exception
  • Optimizing and testing your data type is very important