Test an Object's Type - CSharp Reflection

CSharp examples for Reflection:Type

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Description

Test an Object's Type

Demo Code


using System;//from   ww  w .  j  a  va2s  . c  om
using System.IO;

class MainClass
    {
        public static bool IsType(object obj, string type)
        {
            Type t = Type.GetType(type, true, true);
            return t == obj.GetType() || obj.GetType().IsSubclassOf(t);
        }

        public static void Main()
        {
            Object someObject = new StringReader("This is a StringReader");
            if (typeof(StringReader) == someObject.GetType())
            {
                Console.WriteLine("typeof: someObject is a StringReader");
            }

            if (someObject is TextReader)
            {
                Console.WriteLine("is: someObject is a TextReader or a derived class");
            }
            if (IsType(someObject, "System.IO.TextReader"))
            {
                Console.WriteLine("GetType: someObject is a TextReader");
            }

            StringReader reader = someObject as StringReader;
            if (reader != null)
            {
                Console.WriteLine("as: someObject is a StringReader");
            }
        }
    }

Result


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