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DeclaringType Property

MemberInfo.DeclaringType Property

Gets the class that declares this member.

Namespace:  System.Reflection
Assemblies:   mscorlib (in mscorlib.dll)
  System.Reflection (in System.Reflection.dll)

public abstract Type DeclaringType { get; }

Property Value

Type: System.Type
The Type object for the class that declares this member.



The DeclaringType property retrieves a reference to the Type object for the type that declares this member. A member of a type is either declared by the type or inherited from a base type, so the Type object returned by the DeclaringType property might not be the same as the Type object used to obtain the current MemberInfo object.

  • If the Type object from which this MemberInfo object was obtained did not declare this member, the DeclaringType property will represent one of its base types.

  • If the MemberInfo object is a global member (that is, if it was obtained from the Module.GetMethods method, which returns global methods on a module), the returned DeclaringType will be null.

The following example shows how DeclaringType works with classes and interfaces and retrieves the member names of the System.IO.BufferedStream class, along with the class in which those members are declared. Also note that when B overrides virtual method M from A, it essentially redefines (or redeclares) this method. Therefore, B.M's MethodInfo reports the declaring type as B rather than A, even though A is where this method was originally declared.

using System;
using System.IO;
using System.Reflection;

namespace MyNamespace1 
    interface i 
        int MyVar() ;
    // DeclaringType for MyVar is i. 

    class A : i 
        public int MyVar() { return 0; }
    // DeclaringType for MyVar is A. 

    class B : A 
        new int MyVar() { return 0; }
    // DeclaringType for MyVar is B. 

    class C : A 
    // DeclaringType for MyVar is A.


namespace MyNamespace2 
    class Mymemberinfo 

        public static void Main(string[] args) 

            Console.WriteLine ("\nReflection.MemberInfo");

            //Get the Type and MemberInfo. 
            Type MyType =Type.GetType("System.IO.BufferedStream");
            MemberInfo[] Mymemberinfoarray = MyType.GetMembers();

            //Get and display the DeclaringType method. 
            Console.WriteLine("\nThere are {0} members in {1}.", Mymemberinfoarray.Length, MyType.FullName); 

            foreach (MemberInfo Mymemberinfo in Mymemberinfoarray) 
                Console.WriteLine("Declaring type of {0} is {1}.", Mymemberinfo.Name, Mymemberinfo.DeclaringType); 

namespace MyNamespace3 
    class A 
        virtual public void M () {}
    class B: A 
        override public void M () {}

DeclaringType returns only the member names and the names of their declaring types. To return the member names with their prototypes, call MemberInfo.ToString.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0, 2.0, 1.0

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone Silverlight 8.1, Windows Phone Silverlight 8

Portable Class Library

Supported in: Portable Class Library
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