Pearson eText for Starting out with Visual C# -- Instant Access (Pearson+)
Pearson eText for Starting out with Visual C# -- Instant Access (Pearson+)
5th Edition
ISBN: 9780137502783
Author: Tony Gaddis
Publisher: PEARSON+
Question
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Chapter 13, Problem 2AW
Program Plan Intro

Declaration of delegate type in Question 1:

Suppose a class consists of the following method:

private void ShowValue(int i)

{

    MessageBox.Show(i.ToString());

}

Explanation:

In the above given statement,

  • The return type is void.
  • The method consists of one parameter, an integer.

If this method has to be assigned to a delegate, then a delegate must be used to call the method. Initially, a delegate type must be declared as follows:

//Declare delegate type

delegate void DisplayInteger(int i);

  • The above statement declares a delegate type named DisplayInteger, that can reference any void method, which has one parameter, an integer.
  • This declaration starts with the delegate keyword, followed by code, which is same as that of a method header, terminated with a semicolon.

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