Type::GetFields Method (BindingFlags)
Updated: September 2009
When overridden in a derived class, searches for the fields defined for the current Type, using the specified binding constraints.
Assembly: mscorlib (in mscorlib.dll)
Parameters
- bindingAttr
- Type: System.Reflection::BindingFlags
A bitmask comprised of one or more BindingFlags that specify how the search is conducted.
-or-
Zero, to return nullptr.
Return Value
Type: array<System.Reflection::FieldInfo>An array of FieldInfo objects representing all fields defined for the current Type that match the specified binding constraints.
-or-
An empty array of type FieldInfo, if no fields are defined for the current Type, or if none of the defined fields match the binding constraints.
Implements
_Type::GetFields(BindingFlags)IReflect::GetFields(BindingFlags)
The GetFields method does not return fields in a particular order, such as alphabetical or declaration order. Your code must not depend on the order in which fields are returned, because that order varies.
The following BindingFlags filter flags can be used to define which fields to include in the search:
You must specify either BindingFlags.Instance or BindingFlags.Static in order to get a return.
Specify BindingFlags.Public to include public fields in the search.
Specify BindingFlags.NonPublic to include non-public fields (that is, private, internal, and protected fields) in the search. Only protected and internal fields on base classes are returned; private fields on base classes are not returned.
Specify BindingFlags.FlattenHierarchy to include public and protected static members up the hierarchy; private static members in inherited classes are not included.
The following BindingFlags modifier flags can be used to change how the search works:
BindingFlags.DeclaredOnly to search only the fields declared on the Type, not fields that were simply inherited.
See System.Reflection::BindingFlags for more information.
If the current Type represents a constructed generic type, this method returns the FieldInfo objects with the type parameters replaced by the appropriate type arguments.
If the current Type represents a type parameter in the definition of a generic type or generic method, this method searches the public fields of the class constraint.
The following example shows a use of the GetFields(BindingFlags) method.
using namespace System; using namespace System::Reflection; using namespace System::Runtime::InteropServices; public ref class AttributesSample { public: void Mymethod( int int1m, [Out]interior_ptr<String^> str2m, interior_ptr<String^> str3m ) { *str2m = "in Mymethod"; } }; void PrintAttributes( Type^ attribType, int iAttribValue ) { if ( !attribType->IsEnum ) { Console::WriteLine( "This type is not an enum." ); return; } array<FieldInfo^>^fields = attribType->GetFields( static_cast<BindingFlags>(BindingFlags::Public | BindingFlags::Static) ); for ( int i = 0; i < fields->Length; i++ ) { int fieldvalue = safe_cast<Int32>(fields[ i ]->GetValue( nullptr )); if ( (fieldvalue & iAttribValue) == fieldvalue ) { Console::WriteLine( fields[ i ]->Name ); } } } int main() { Console::WriteLine( "Reflection.MethodBase.Attributes Sample" ); // Get the type. Type^ MyType = Type::GetType( "AttributesSample" ); // Get the method Mymethod on the type. MethodBase^ Mymethodbase = MyType->GetMethod( "Mymethod" ); // Display the method name. Console::WriteLine( "Mymethodbase = {0}", Mymethodbase ); // Get the MethodAttribute enumerated value. MethodAttributes Myattributes = Mymethodbase->Attributes; // Display the flags that are set. PrintAttributes( System::Reflection::MethodAttributes::typeid, (int)Myattributes ); return 0; }
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
Date | History | Reason |
|---|---|---|
September 2009 | Noted that private members of base types are not returned. | Content bug fix. |
September 2009 | Removed an erroneous statement that nullptr is returned for non-public members outside the assembly, if caller lacks ReflectionPermission. | Content bug fix. |