Is Object Unitialized Value : Type « Reflection « C# / C Sharp

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Is Object Unitialized Value
 
#region License
// Copyright 2006 James Newton-King
// http://www.newtonsoft.com
//
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using System;
using System.Collections.Generic;
using System.Text;
using System.Reflection;
using System.Collections;
using System.ComponentModel;

namespace MySpace.Common.IO.JSON.Utilities
{
    internal static class ReflectionUtils
    {
        private static bool IsValueTypeUnitializedValue(ValueType value, Type valueType)
        {
            if (valueType.IsGenericType && valueType.GetGenericTypeDefinition() == typeof(Nullable<>))
                return (value == null);
            else
                return value.Equals((ValueType)Activator.CreateInstance(valueType));
        }
        public static bool IsObjectUnitializedValue(object value, Type valueType)
        {
            if (valueType.IsValueType)
                return IsValueTypeUnitializedValue((ValueType)value, valueType);
            else if (valueType.IsClass)
                return (value == null);
            else
                throw new ArgumentException("Type is neither a ValueType or a Class""valueType");
        }
    }
}

   
  
Related examples in the same category
1.Call GetType() from StringBuilder
2.Call GetType for int data type
3.IsGeneric and IsGenericTypeDefinition
4.demonstrates both the instance and static GetType methods
5.Generic methods, like nongeneric methods, can be invoked dynamically at run time.
6.Type.GetGenericArguments and MethodInfo.GetGenericArguments:
7.Get Generic Type Definition
8.Query properties of a Type
9.Deeper Reflection:Listing All the Types in an AssemblyDeeper Reflection:Listing All the Types in an Assembly
10.Illustrates runtime type creation
11.The typeName parameter is a combination of the Assembly and Type names
12.Call static method GetType from Type to get the Type instance
13.Use GetCustomAttributes from Type to get custom attributes
14.Use Type.GetType to check the type of an object
15.Get object Type Name, UnderlyingSystemType, IsClass
16.Type.GetConstructors
17.Use Type.IsClass to check if a type is a class
18.Print Types
19.Determining the base classes and interfaces for a class.
20.Create Object from assembly name and class nameCreate Object from assembly name and class name
21.Makes a shallow copy of the object to a different class type (inherits from the original)
22.Makes a shallow copy of the object
23.Get all methods from an object
24.Get Derivation from an object
25.The full name of the Array type
26.Change type
27.Does a given Type have a Default Constructor
28.Is it a Nullable Type
29.Is Value Type Unitialized Value
30.Get Type Unitialized Value
31.Is it a SubClass for another class
32.Convert type from initial Value
33.Returns all assemblies and their properties
34.Helper to display the "contents" of the Value Object
35.Get a public field value given its name
36.Deep Comparison two objects if they are alike.
37.Set the specified public field value of an object
38.Determine if a type is cloneable: either a value type or implementing ICloneable.
39.Provides a simple reflection based mapper to perform a Data Mapping between two types of objects
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