FieldInfo Class

 

Discovers the attributes of a field and provides access to field metadata.

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


[<AbstractClass>]
[<SerializableAttribute>]
[<ClassInterfaceAttribute(ClassInterfaceType.None)>]
[<ComVisibleAttribute(true)>]
[<PermissionSetAttribute(SecurityAction.InheritanceDemand, Name = "FullTrust")>]
type FieldInfo = 
    class
        inherit MemberInfo
        interface _FieldInfo
    end

NameDescription
System_CAPS_protmethodFieldInfo()

Initializes a new instance of the FieldInfo class.

NameDescription
System_CAPS_pubpropertyAttributes

Gets the attributes associated with this field.

System_CAPS_pubpropertyCustomAttributes

Gets a collection that contains this member's custom attributes.(Inherited from MemberInfo.)

System_CAPS_pubpropertyDeclaringType

Gets the class that declares this member.(Inherited from MemberInfo.)

System_CAPS_pubpropertyFieldHandle

Gets a RuntimeFieldHandle, which is a handle to the internal metadata representation of a field.

System_CAPS_pubpropertyFieldType

Gets the type of this field object.

System_CAPS_pubpropertyIsAssembly

Gets a value indicating whether the potential visibility of this field is described by FieldAttributes.Assembly; that is, the field is visible at most to other types in the same assembly, and is not visible to derived types outside the assembly.

System_CAPS_pubpropertyIsFamily

Gets a value indicating whether the visibility of this field is described by FieldAttributes.Family; that is, the field is visible only within its class and derived classes.

System_CAPS_pubpropertyIsFamilyAndAssembly

Gets a value indicating whether the visibility of this field is described by FieldAttributes.FamANDAssem; that is, the field can be accessed from derived classes, but only if they are in the same assembly.

System_CAPS_pubpropertyIsFamilyOrAssembly

Gets a value indicating whether the potential visibility of this field is described by FieldAttributes.FamORAssem; that is, the field can be accessed by derived classes wherever they are, and by classes in the same assembly.

System_CAPS_pubpropertyIsInitOnly

Gets a value indicating whether the field can only be set in the body of the constructor.

System_CAPS_pubpropertyIsLiteral

Gets a value indicating whether the value is written at compile time and cannot be changed.

System_CAPS_pubpropertyIsNotSerialized

Gets a value indicating whether this field has the NotSerialized attribute.

System_CAPS_pubpropertyIsPinvokeImpl

Gets a value indicating whether the corresponding PinvokeImpl attribute is set in FieldAttributes.

System_CAPS_pubpropertyIsPrivate

Gets a value indicating whether the field is private.

System_CAPS_pubpropertyIsPublic

Gets a value indicating whether the field is public.

System_CAPS_pubpropertyIsSecurityCritical

Gets a value that indicates whether the current field is security-critical or security-safe-critical at the current trust level.

System_CAPS_pubpropertyIsSecuritySafeCritical

Gets a value that indicates whether the current field is security-safe-critical at the current trust level.

System_CAPS_pubpropertyIsSecurityTransparent

Gets a value that indicates whether the current field is transparent at the current trust level.

System_CAPS_pubpropertyIsSpecialName

Gets a value indicating whether the corresponding SpecialName attribute is set in the FieldAttributes enumerator.

System_CAPS_pubpropertyIsStatic

Gets a value indicating whether the field is static.

System_CAPS_pubpropertyMemberType

Gets a MemberTypes value indicating that this member is a field.(Overrides MemberInfo.MemberType.)

System_CAPS_pubpropertyMetadataToken

Gets a value that identifies a metadata element.(Inherited from MemberInfo.)

System_CAPS_pubpropertyModule

Gets the module in which the type that declares the member represented by the current MemberInfo is defined.(Inherited from MemberInfo.)

System_CAPS_pubpropertyName

Gets the name of the current member.(Inherited from MemberInfo.)

System_CAPS_pubpropertyReflectedType

Gets the class object that was used to obtain this instance of MemberInfo.(Inherited from MemberInfo.)

NameDescription
System_CAPS_pubmethodEquals(Object)

Returns a value that indicates whether this instance is equal to a specified object.(Overrides MemberInfo.Equals(Object).)

System_CAPS_protmethodFinalize()

Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.)

System_CAPS_pubmethodGetCustomAttributes(Boolean)

When overridden in a derived class, returns an array of all custom attributes applied to this member. (Inherited from MemberInfo.)

System_CAPS_pubmethodGetCustomAttributes(Type, Boolean)

When overridden in a derived class, returns an array of custom attributes applied to this member and identified by Type.(Inherited from MemberInfo.)

System_CAPS_pubmethodGetCustomAttributesData()

Returns a list of CustomAttributeData objects representing data about the attributes that have been applied to the target member.(Inherited from MemberInfo.)

System_CAPS_pubmethodSystem_CAPS_staticGetFieldFromHandle(RuntimeFieldHandle)

Gets a FieldInfo for the field represented by the specified handle.

System_CAPS_pubmethodSystem_CAPS_staticGetFieldFromHandle(RuntimeFieldHandle, RuntimeTypeHandle)

Gets a FieldInfo for the field represented by the specified handle, for the specified generic type.

System_CAPS_pubmethodGetHashCode()

Returns the hash code for this instance.(Overrides MemberInfo.GetHashCode().)

System_CAPS_pubmethodGetOptionalCustomModifiers()

Gets an array of types that identify the optional custom modifiers of the field.

System_CAPS_pubmethodGetRawConstantValue()

Returns a literal value associated with the field by a compiler.

System_CAPS_pubmethodGetRequiredCustomModifiers()

Gets an array of types that identify the required custom modifiers of the property.

System_CAPS_pubmethodGetType()

Gets the Type of the current instance.(Inherited from Object.)

System_CAPS_pubmethodGetValue(Object)

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

System_CAPS_pubmethodGetValueDirect(TypedReference)

Returns the value of a field supported by a given object.

System_CAPS_pubmethodIsDefined(Type, Boolean)

When overridden in a derived class, indicates whether one or more attributes of the specified type or of its derived types is applied to this member.(Inherited from MemberInfo.)

System_CAPS_protmethodMemberwiseClone()

Creates a shallow copy of the current Object.(Inherited from Object.)

System_CAPS_pubmethodSetValue(Object, Object)

Sets the value of the field supported by the given object.

System_CAPS_pubmethodSetValue(Object, Object, BindingFlags, Binder, CultureInfo)

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

System_CAPS_pubmethodSetValueDirect(TypedReference, Object)

Sets the value of the field supported by the given object.

System_CAPS_pubmethodToString()

Returns a string that represents the current object.(Inherited from Object.)

NameDescription
System_CAPS_puboperatorSystem_CAPS_staticEquality(FieldInfo, FieldInfo)

Indicates whether two FieldInfo objects are equal.

System_CAPS_puboperatorSystem_CAPS_staticInequality(FieldInfo, FieldInfo)

Indicates whether two FieldInfo objects are not equal.

NameDescription
System_CAPS_pubinterfaceSystem_CAPS_privmethod_FieldInfo.GetIDsOfNames(Guid, IntPtr, UInt32, UInt32, IntPtr)

Maps a set of names to a corresponding set of dispatch identifiers.

System_CAPS_pubinterfaceSystem_CAPS_privmethod_FieldInfo.GetType()

Gets a Type object representing the FieldInfo type.

System_CAPS_pubinterfaceSystem_CAPS_privmethod_FieldInfo.GetTypeInfo(UInt32, UInt32, IntPtr)

Retrieves the type information for an object, which can then be used to get the type information for an interface.

System_CAPS_pubinterfaceSystem_CAPS_privmethod_FieldInfo.GetTypeInfoCount(UInt32)

Retrieves the number of type information interfaces that an object provides (either 0 or 1).

System_CAPS_pubinterfaceSystem_CAPS_privmethod_FieldInfo.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr)

Provides access to properties and methods exposed by an object.

System_CAPS_pubinterfaceSystem_CAPS_privmethod_MemberInfo.GetIDsOfNames(Guid, IntPtr, UInt32, UInt32, IntPtr)

Maps a set of names to a corresponding set of dispatch identifiers.(Inherited from MemberInfo.)

System_CAPS_pubinterfaceSystem_CAPS_privmethod_MemberInfo.GetType()

Gets a Type object representing the MemberInfo class.(Inherited from MemberInfo.)

System_CAPS_pubinterfaceSystem_CAPS_privmethod_MemberInfo.GetTypeInfo(UInt32, UInt32, IntPtr)

Retrieves the type information for an object, which can then be used to get the type information for an interface.(Inherited from MemberInfo.)

System_CAPS_pubinterfaceSystem_CAPS_privmethod_MemberInfo.GetTypeInfoCount(UInt32)

Retrieves the number of type information interfaces that an object provides (either 0 or 1).(Inherited from MemberInfo.)

System_CAPS_pubinterfaceSystem_CAPS_privmethod_MemberInfo.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr)

Provides access to properties and methods exposed by an object.(Inherited from MemberInfo.)

NameDescription
System_CAPS_pubmethodGetCustomAttribute(Type)

Overloaded. Retrieves a custom attribute of a specified type that is applied to a specified member.(Defined by CustomAttributeExtensions.)

System_CAPS_pubmethodGetCustomAttribute(Type, Boolean)

Overloaded. Retrieves a custom attribute of a specified type that is applied to a specified member, and optionally inspects the ancestors of that member.(Defined by CustomAttributeExtensions.)

System_CAPS_pubmethodGetCustomAttribute<'T>()

Overloaded. Retrieves a custom attribute of a specified type that is applied to a specified member.(Defined by CustomAttributeExtensions.)

System_CAPS_pubmethodGetCustomAttribute<'T>(Boolean)

Overloaded. Retrieves a custom attribute of a specified type that is applied to a specified member, and optionally inspects the ancestors of that member.(Defined by CustomAttributeExtensions.)

System_CAPS_pubmethodGetCustomAttributes()

Overloaded. Retrieves a collection of custom attributes that are applied to a specified member.(Defined by CustomAttributeExtensions.)

System_CAPS_pubmethodGetCustomAttributes(Type)

Overloaded. Retrieves a collection of custom attributes of a specified type that are applied to a specified member.(Defined by CustomAttributeExtensions.)

System_CAPS_pubmethodGetCustomAttributes<'T>(Boolean)

Overloaded. Retrieves a collection of custom attributes of a specified type that are applied to a specified member, and optionally inspects the ancestors of that member.(Defined by CustomAttributeExtensions.)

System_CAPS_pubmethodIsDefined(Type)

Overloaded. Indicates whether custom attributes of a specified type are applied to a specified member.(Defined by CustomAttributeExtensions.)

The field information is obtained from metadata. The FieldInfo class does not have a public constructor. FieldInfo objects are obtained by calling either the GetFields or GetField method of a Type object.

Fields are variables defined in the class. FieldInfo provides access to the metadata for a field within a class and provides dynamic set and get functionality for the field. The class is not loaded into memory until invoke or get is called on the object.

Notes to Inheritors:

When you inherit from FieldInfo, you must override the following members: GetValue and SetValue.

The following example uses the Type.GetFields method to get the field-related information from the FieldInfo class, and then displays field attributes.

No code example is currently available or this language may not be supported.

SecurityAction.InheritanceDemand

for full trust for inheritors. This class cannot be inherited by partially trusted code.

Universal Windows Platform
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1

This type is thread safe.

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