System.Type


The data type System.Type encapsulates a type. This data type is at the core of the reflection subsystem. It is a large data structure that contains many properties and methods. Type is derived from an abstract class called System.Reflection.MemberInfo. MemberInfo defines the following read-only properties.

Type DeclaringType This property obtains the type of the class or interface in which the member is declared.
MemberTypes MemberType This property obtains the kind of the member. This value determines if the member is a field, method, property, event or constructor.
int MetadataToken This property obtains a value linked to a specified piece of metadata.
Module Module This property obtains the module in which the reflected type resides.
string Name This property delivers the name of the type.
Type ReflectedType The type of the object being reflected.

MemberTypes is an enumeration that includes the following.

MemberTypes.Constructor
MemberTypes.Method
MemberTypes.Field
MemberTypes.Event
MemberTypes.Property

To the components of MemberInfo, the class Type adds a great many of its own. Several commonly used methods of Type are shown in the table below.

ConstructorInfo[] GetConstructors() Obtains a list of constructors for the type.
EventInfo[] GetEvents() Obtains a list of events for the type.
FieldInfo[] GetFields() Obtains a list of fields for the type.
Type[] GetGenericArguments() Obtains a list of type arguments bound to a constructed generic type or type if the type is not constructed.
MemberInfo[] GetMembers() Obtains a list of members for the type.
MethodInfo[] GetMethods Obtains a list of methods for the type.
PropertyInfo[] GetProperties() Obtains a list of properties for the type.

Several commonly used read-only properties of Type are shown in the table below.

Assembly Assembly Obtains the assembly of the type.
TypeAttributes Attributes Obtains the attributes for the type.
Type BaseType Obtains the immediate base class of the type.
string FullName Obtains the complete name of the type.
bool IsAbstract Returns true when the type is abstract.
bool IsArray Returns true when the type is an array.
bool IsClass Returns true when the type is a class.
bool IsEnum Returns true when the type is an enumeration.
bool IsGenericParameter Retuns true when the type is a generic type parameter.
bool IsGenericTypeDefinition Returns true when the type is an unconstructed generic type.
string Namespace Returns the name space for the type.