C# | Type.GetDefaultMembers() Method

Last Updated : 19 Dec, 2019

Type.GetDefaultMembers() Method is used to find the members defined for the current Type whose DefaultMemberAttribute is set.

Syntax: public virtual System.Reflection.MemberInfo[] GetDefaultMembers ();

Return Value: This method returns an array of MemberInfo objects representing all default members of the current Type or an empty array of type MemberInfo, if the current Type does not have default members.

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

Example 1:

// C# program to demonstrate the 
// Type.GetDefaultMembers() Method 
using System; 
using System.Globalization; 
using System.Reflection; 
  
class GFG { 
  
    // Main Method 
    public static void Main() 
    { 
        // Declaring and initializing obj 
        object obj = "Ram"; 
  
        // Getting the type of obj 
        // using GetType() Method 
        Type type = obj.GetType(); 
  
        // Getting the DefaultMembers 
        // using GetDefaultMembers() Method 
        MemberInfo[] info = type.GetDefaultMembers(); 
  
        // Display the result 
        for (int i = 0; i < info.Length; i++) 
  
            Console.WriteLine("Result is:  {0}", info[i]); 
    } 
} 

Output:

Result is:  Char Chars [Int32]

Example 2:

// C# program to demonstrate the 
// Type.GetDefaultMembers() Method 
using System; 
using System.Globalization; 
using System.Reflection; 
  
// Setting DefaultMemberAttribute 
[DefaultMemberAttribute("name")] class GFG { 
  
    // Main Method 
    public static void Main() 
    { 
        // Declaring and initializing 
        // object of Type dataType 
        Type type = typeof(GFG); 
  
        // Getting the DefaultMembers 
        // using GetDefaultMembers() Method 
        MemberInfo[] info = type.GetDefaultMembers(); 
  
        if (info.Length != 0) 
        { 
            for (int i = 0; i < info.Length; i++) 
                Console.WriteLine("Result is:  {0}", info[i]); 
        } 
        else { 
            Console.WriteLine("DefaultMember is not found"); 
        } 
    } 
  
    // Defining Member Attributes 
    public void Name(String s) {} 
  
    // Defining property 
    public String name 
    { 
        // property or indexer must  
        // have at least one accessor 
        get
        { 
            return "Ram"; 
        } 
    } 
} 