CSharp_03_Properties_introductionwithexamples

CSharp_03_Properties_introductionwithexamples

• 1.
  Programming in C# Properties Properties CSE494R (proposed course for 459 Programming in C#) Prof. Roger Crawfis
• 2.
  Properties  Typical patternfor accessing fields. private int x; public int GetX(); public void SetX(int newVal);  Elevated into the language: private int count; public int Count { get { return count; } set { count = value; } }  Typically there is a backing-store, but not always.
• 3.
  Properties Using a propertyis more like using a public field than calling a function: FooClass foo; int count = foo.Count; // calls get int count = foo.count; // compile error The compiler automatically generates the routine or in-lines the code.
• 4.
  Properties Properties can beused in interfaces Can have three types of a property  read-write, read-only, write-only More important with WPF and declarative programming. // read-only property declaration // in an interface. int ID { get; };
• 5.
  Automatic Properties C# 3.0added a shortcut version for the common case (or rapid prototyping) where my get and set just read and wrote to a backing store data element. Avoids having to declare the backing store. The compiler generates it for you implicitly. public decimal CurrentPrice { get; set; }