ASP.Net/Language Basics/Class Inheritance

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Inherit a Class (C#)

   <source lang="csharp">

<%@ Page Language="C#" %> <script runat="server"> 

   public class Animal {
   
      private int legs;
      private string  bodyHair;
   
      public int Legs {
        get {
          return legs;
        }
        set {
          legs = value;
        }
      }
   
      public string  BodyHair {
        get {
          return bodyHair;
        }
        set {
          bodyHair = value;
        }
      }
   
      public string  Walk() {
        return "I"m walking on " + legs + " legs";
      }
   
   }
   
   public class Dog : Animal {
   
      public Dog() {
        Legs = 4;
      }
   
      public string  Bark() {
        return "Woof";
      }
   
      public string  Bite() {
        return "Chomp Chomp";
      }
   
      public string  Wag() {
        return "Wag Wag";
      }
   }
   
   public class Person : Animal {
   
      public Person() {
        Legs = 2;
      }
   
      public string  Talk() {
        return "yadda yadda yadda";
      }
   }
   
   void Page_Load(object Sender, EventArgs E) {
   
      Dog d = new Dog();
      Response.Write(d.Walk());
      Response.Write("
");
      Response.Write(d.Bark());
      Response.Write("
");
   
      Person  p = new Person();
      Response.Write(p.Walk());
   }

</script> <html> <head> </head> <body> </body> </html> 

      </source>


Inherits class (C#)

   <source lang="csharp">

<%@ page Language="c#" runat="server" %> <script runat="server"> 

 public class ScientificCalculator : Calculator
 {
   public void SquareRoot()
   {
     double root = Math.Sqrt(CurrentValue);
     Clear();
     Add(root);
   }
 }
 public class Calculator
 {
   private double currentValue;
   public double CurrentValue
   {
     get 
     {
       return currentValue;
     }
   }
   public void Add(double addValue)
   {
     currentValue += addValue;
   }
   public void Subtract(double subValue)
   {
     currentValue -= subValue;
   }
   public void Multiply(double multValue)
   {
     currentValue *= multValue;
   }
   public void Divide(double divValue)
   {
     currentValue /= divValue;
   }
   public void Clear()
   {
     currentValue = 0;
   }
}
 void Page_Load() 
 {
   ScientificCalculator MyCalc = new ScientificCalculator();
   Response.Write("Created a new ScientificCalculator object.
");
   Response.Write("Current Value = " + MyCalc.CurrentValue);
   MyCalc.Add(23);
   Response.Write("
Added 23 - MyCalc.Add(23)
");
   Response.Write("Current Value = " + MyCalc.CurrentValue);
   MyCalc.Subtract(7);
   Response.Write("
Subtracted 7 - MyCalc.Subtract(7)
");
   Response.Write("Current Value = " + MyCalc.CurrentValue);
   MyCalc.Multiply(3);
   Response.Write("
Multiplied by 3 - MyCalc.Multiply(3)
");
   Response.Write("Current Value = " + MyCalc.CurrentValue);
   MyCalc.Divide(4);
   Response.Write("
Divided by 4 - MyCalc.Divide(4)
");
   Response.Write("Current Value = " + MyCalc.CurrentValue);
   MyCalc.SquareRoot();
   Response.Write("
Square root - MyCalc.SquareRoot()
");
   Response.Write("Current Value = " + MyCalc.CurrentValue);
   MyCalc.Clear();
   Response.Write("
Cleared - MyCalc.Clear()
");
   Response.Write("Current Value = " + MyCalc.CurrentValue);
 }

</script> 

      </source>


Inherits class (VB.net)

   <source lang="csharp">

<%@ page language="vb" runat="server" %> <script runat="server"> 

 Public Class ScientificCalculator : Inherits Calculator
   Public Sub SquareRoot()
     Dim root As Double
     Dim current As Double = MyBase.CurrentValue
     root = Math.Sqrt(current)
     MyBase.Clear()
     MyBase.Add(root)
   End Sub
 End Class
 Public Class Calculator
   Private _current As Double
   
   Public ReadOnly Property CurrentValue As Double
     Get
       Return _current
     End Get
   End Property
   
   Public Sub Add(addValue As Double)
     _current += addValue
   End Sub
   Public Sub Subtract(addValue As Double)
     _current -= addValue
   End Sub
   Public Sub Multiply(addValue As Double)
     _current *= addValue
   End Sub
   Public Sub Divide(addValue As Double)
     _current /= addValue
   End Sub
   Public Sub Clear()
     _current = 0
   End Sub
   
 End Class
 Sub Page_Load()
   Dim MyCalc As New ScientificCalculator()
   Response.Write("Created a new ScientificCalculator object.
")
   Response.Write("Current Value = " & MyCalc.CurrentValue)
   MyCalc.Add(23)
   Response.Write("
Added 23 - MyCalc.Add(23)
")
   Response.Write("Current Value = " & MyCalc.CurrentValue)
   MyCalc.Subtract(7)
   Response.Write("
Subtracted 7 - MyCalc.Subtract(7)
")
   Response.Write("Current Value = " & MyCalc.CurrentValue)
   
   MyCalc.Multiply(3)
   Response.Write("
Multiplied by 3 - MyCalc.Multiply(3)
")
   Response.Write("Current Value = " & MyCalc.CurrentValue)
   MyCalc.Divide(4)
   Response.Write("
Divided by 4 - MyCalc.Divide(4)
")
   Response.Write("Current Value = " & MyCalc.CurrentValue)
   MyCalc.SquareRoot()
   Response.Write("
Square root - MyCalc.SquareRoot()
")
   Response.Write("Current Value = " & MyCalc.CurrentValue)
   MyCalc.Clear()
   Response.Write("
Cleared - MyCalc.Clear()
")
   Response.Write("Current Value = " & MyCalc.CurrentValue)
 End Sub

</script> 

      </source>
Источник — «http://nfex.ru/index.php?title=ASP.Net/Language_Basics/Class_Inheritance&oldid=2236»