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FieldInfo.GetValue Method

When overridden in a derived class, returns the value of a field supported by a given object.

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

public abstract Object GetValue(
	Object obj


Type: System.Object
The object whose field value will be returned.

Return Value

Type: System.Object
An object containing the value of the field reflected by this instance.




The field is non-static and obj is null.


A field is marked literal, but the field does not have one of the accepted literal types.


The caller does not have permission to access this field.


The method is neither declared nor inherited by the class of obj.

If the field is static, obj is ignored. For non-static fields, obj should be an instance of a class that inherits or declares the field. Note that the return type of GetValue is Object. For example, if the field holds a Boolean primitive value, an instance of Object with the appropriate Boolean value is returned. Before returning the value, GetValue checks to see if the user has access permission.


Access restrictions are ignored for fully trusted code. That is, private constructors, methods, fields, and properties can be accessed and invoked through reflection whenever the code is fully trusted.


Starting with the .NET Framework version 2.0 Service Pack 1, this method can be used to access non-public members if the caller has been granted ReflectionPermission with the ReflectionPermissionFlag.RestrictedMemberAccess flag and if the grant set of the non-public members is restricted to the caller’s grant set, or a subset thereof. (See Security Considerations for Reflection.)

To use this functionality, your application should target the .NET Framework version 3.5 or later.

// The following example demonstrates getting
// a field value directly, without having an object,
// by defining it as a static field.

using System;
using System.Reflection;

class MyClass
    public static String val = "test";
    public static void Main()
        FieldInfo myf = typeof(MyClass).GetField("val");
        val = "hi";

The following example retrieves the fields of MyClass and displays the field values.

using System;
using System.Reflection;

public class MyClass
    public string myFieldA;
    public string myFieldB; 
    public MyClass()
        myFieldA = "A public field";
        myFieldB = "Another public field";

public class FieldInfo_GetValue
    public static void Main()
        MyClass myInstance = new MyClass();
        // Get the type of MyClass.
        Type myType = typeof(MyClass);
            // Get the FieldInfo of MyClass.
            FieldInfo[] myFields = myType.GetFields(BindingFlags.Public 
                | BindingFlags.Instance);
            // Display the values of the fields.
            Console.WriteLine("\nDisplaying the values of the fields of {0}.\n",
            for(int i = 0; i < myFields.Length; i++)
                Console.WriteLine("The value of {0} is: {1}",
                    myFields[i].Name, myFields[i].GetValue(myInstance));
        catch(Exception e)
            Console.WriteLine("Exception : {0}", e.Message);

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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