Partial Class with example

Partial Class:

This special type of class called "Partial Class" is introduced with .Net Framework 2.0. Partial Class allows its members – method, properties, and events – to be divided into multiple source files (.cs). At compile time these files get combined into a single class.
Partial Class is denoted by the keyword partial.

Some do's and don'ts about partial class:-

• All the parts of a partial class must be prefixed with the keyword partial.
• Accessibility, signature etc. must be same in all parts of the partial class.
• You cannot sealed one part of the partial class. In that case entire class in sealed.
• If you define any part of the partial class abstract, entire class will become abstract. 
• Inheritance cannot be applied to a part of partial class. If you do so, it applies to entire class. 

Example:

        public partial class myPartialClass

        {

            public void firstMethod()

            {

                // code…

            }

        }

        public partial class myPartialClass

        {

            public void secondMethod()

            {

                // code…

            }

        }