Reference Type Constraint: A reference type constraint restricts a type parameter to a reference type. : Generic Constraint « Generics « C# / C Sharp

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C# / C Sharp » Generics » Generic Constraint Screenshots  Reference Type Constraint: A reference type constraint restricts a type parameter to a reference type.   using System; using System.Collections; public class Starter {     public static void Main() {         // MyClass<int> obj1=new MyClass<int>(); [illegal]         MyClass<XClass> obj2 = new MyClass<XClass>();     } } public class MyClass<T> where T : class {     public void Iterate(T data) {     } } public class XClass { }   Related examples in the same category 1. There are five types of constraints: 2. Combination of Overriding Generic Methods 3. A base class constraint 4. Use an interface constraint 5. A new() constructor constraint 6. Demonstrate a reference constraint 7. Demonstrate a value type constraint 8. A type parameter can be used as a constraint 9. Reference Type Constraint 10. Default Constructor Constraint 11. Derivation Constraint 12. constructor constraint