generics in c#

class MyGenericClass<T> { private T genericMemberVariable; public MyGenericClass(T value) { genericMemberVariable = value; } public T genericMethod(T genericParameter) { Console.WriteLine("Parameter type: {0}, value: {1}", typeof(T).ToString(),genericParameter); Console.WriteLine("Return type: {0}, value: {1}", typeof(T).ToString(), genericMemberVariable); return genericMemberVariable; } public T genericProperty { get; set; } }

c# collection of generic classes

public abstract class MyClass
{
    public abstract Type Type { get; }
}

public class MyClass<T> : MyClass
{
    public override Type Type
    {
        get { return typeof(T); }
    }

    public T Value { get; set; }
}

// VERY basic illustration of how you might construct a collection
// of MyClass<T> objects.
public class MyClassCollection
{
    private Dictionary<Type, MyClass> _dictionary;

    public MyClassCollection()
    {
        _dictionary = new Dictionary<Type, MyClass>();
    }

    public void Put<T>(MyClass<T> item)
    {
        _dictionary[typeof(T)] = item;
    }

    public MyClass<T> Get<T>()
    {
        return _dictionary[typeof(T)] as MyClass<T>;
    }
}

Posted by: Guest on July-15-2020

Source

//Swaps the lhs and rhs variables. T is a type given as an argument //and can be used in the method like a type. (It doesn't have to be "T", it can //be anything). static void Swap<T>(ref T lhs, ref T rhs) { T temp; temp = lhs; lhs = rhs; rhs = temp; } public static void TestSwap() { int a = 1; int b = 2; Swap<int>(ref a, ref b); System.Console.WriteLine(a + " " + b); }

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