Illustrates use of the Obsolete attribute : Attribute : Language Basics C# Source Code

Illustrates use of the Obsolete attribute

    


/*
illustrates use of the Obsolete attribute
*/

using System;

public class Example17_1 
{
  // warn the user that Method1 is obsolete
  [Obsolete("Method1 has been replaced by NewMethod1", false)]
  public static int Method1()
  {
    return 1;
  }

  // throw an error if the user tries to use Method2
  [Obsolete("Method2 has been replaced by NewMethod2", true)]
  public static int Method2()
  {
    return 2;
  }

  public static void Main() 
  {
    Console.WriteLine(Method1());
    Console.WriteLine(Method2());
  }
}




           
       
    
   
  
   

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• Attribute in class inheritance
• Defining New Attribute Classes
• Use AttributeUsage
• Use a property as a named attribute parameter
• Demonstrate the Conditional attribute
• Define contant and use it in Conditional attribute
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