C# | Type.GetTypeArray() Method

Last Updated : 18 Jan, 2023

Type.GetTypeArray() Method is used to get the types of the objects in the specified array.

Syntax: public static Type[] GetTypeArray (object[] args); Here, it takes an array of objects whose types to determine.

Return Value: This method returns an array of Type objects representing the types of the corresponding elements in args.

Exception: This method throws ArgumentNullException if args is null or, One or more of the elements in args is null.

Below programs illustrate the use of Type.GetTypeArray() Method:

Example 1:

csharp

   // C# program to demonstrate the
// Type.GetTypeArray(Object[]) Method
using System;
using System.Globalization;
using System.Reflection;
 
// Defining class Empty
public class Empty { }
 
class GFG {
 
    // Main Method
    public static void Main()
    {
 
        // try-catch block for handling Exception
        try {
 
            // creating and initializing object
            object[] obj = {2, 3.4, 'c', "ram"};
 
            // using GetTypeArray() Method
            Type[] type = Type.GetTypeArray(obj);
 
            // Display the Result
            Console.WriteLine("Types of the objects in the specified array: ");
            for (int i = 0; i < type.Length; i++)
                Console.WriteLine(" {0}", type[i]);
        }
 
        // catch ArgumentNullException here
        catch (ArgumentNullException e)
        {
            Console.Write("One or more of the elements in args is null.");
            Console.Write("Exception Thrown: ");
            Console.Write("{0}", e.GetType(), e.Message);
        }
    }
}
 
  

Output:

Types of the objects in the specified array:   System.Int32  System.Double  System.Char  System.String

Example 2:

csharp

   // C# program to demonstrate the
// Type.GetTypeArray(Object[]) Method
using System;
using System.Globalization;
using System.Reflection;
 
// Defining class Empty
public class Empty {}
 
class GFG {
 
    // Main Method
    public static void Main()
    {
 
        // try-catch block for handling Exception
        try {
 
            // creating and initializing object
            object[] obj = {2, 3.4, 'c', "ram", null};
 
            // using GetTypeArray() Method
            Type[] type = Type.GetTypeArray(obj);
 
            // Display the Result
            Console.WriteLine("Types of the objects in the specified array: ");
            for (int i = 0; i < type.Length; i++)
                Console.WriteLine(" {0}", type[i]);
        }
 
        // catch ArgumentNullException here
        catch (ArgumentNullException e) 
        {
            Console.WriteLine("One or more of the elements in args is null.");
            Console.Write("Exception Thrown: ");
            Console.Write("{0}", e.GetType(), e.Message);
        }
    }
}
 
  

Output:

One or more of the elements in args is null. Exception Thrown: System.ArgumentNullException

Reference:

https://docs.microsoft.com/en-us/dotnet/api/system.type.gettypearray?view=netframework-4.8

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