C# Type IsGenericParameter

Description

Type IsGenericParameter gets a value indicating whether the current Type represents a type parameter in the definition of a generic type or method.

Syntax

Type.IsGenericParameter has the following syntax.


public virtual bool IsGenericParameter { get; }

Example

The following example uses the IsGenericParameter property to test for generic type parameters in a generic type.


//  w  w w .  j av a 2  s.  c  o m
using System;
using System.Reflection;
using System.Collections.Generic;

public class Base<T, U> { }

public class Derived<V> : Base<int, V> { }

public class Test
{
    public static void Main()
    {
        Type derivedType = typeof(Derived<>);
        DisplayGenericTypeInfo(derivedType);

        // Display its open constructed base type.
        DisplayGenericTypeInfo(derivedType.BaseType);
    }

    private static void DisplayGenericTypeInfo(Type t)
    {
        
        if (t.IsGenericType)
        {
            Type[] typeArguments = t.GetGenericArguments();
        
            foreach (Type tParam in typeArguments)
            {
                if (tParam.IsGenericParameter)
                {
                    Console.WriteLine("\t\t{0}\t(unassigned - parameter position {1})",
                        tParam,
                        tParam.GenericParameterPosition);
                }
                else
                {
                    Console.WriteLine("\t\t{0}", tParam);
                }
            }
        }
    }
}

The code above generates the following result.