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Type.GetPropertyImpl Method

Updated: September 2009

When overridden in a derived class, searches for the specified property whose parameters match the specified argument types and modifiers, using the specified binding constraints.

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

protected abstract function GetPropertyImpl(
	name : String, 
	bindingAttr : BindingFlags, 
	binder : Binder, 
	returnType : Type, 
	types : Type[], 
	modifiers : ParameterModifier[]
) : PropertyInfo

Parameters

name
Type: System.String

The String containing the name of the property to get.

bindingAttr
Type: System.Reflection.BindingFlags

A bitmask comprised of one or more BindingFlags that specify how the search is conducted.

-or-

Zero, to return a null reference (Nothing in Visual Basic).

binder
Type: System.Reflection.Binder

A Binder object that defines a set of properties and enables binding, which can involve selection of an overloaded member, coercion of argument types, and invocation of a member through reflection.

-or-

A null reference (Nothing in Visual Basic), to use the DefaultBinder.

returnType
Type: System.Type

The return type of the property.

types
Type: System.Type[]

An array of Type objects representing the number, order, and type of the parameters for the indexed property to get.

-or-

An empty array of the type Type (that is, Type[] types = new Type[0]) to get a property that is not indexed.

modifiers
Type: System.Reflection.ParameterModifier[]

An array of ParameterModifier objects representing the attributes associated with the corresponding element in the types array. The default binder does not process this parameter.

Return Value

Type: System.Reflection.PropertyInfo
A PropertyInfo object representing the property that matches the specified requirements, if found; otherwise, a null reference (Nothing in Visual Basic).

ExceptionCondition
AmbiguousMatchException

More than one property is found with the specified name and matching the specified binding constraints.

ArgumentNullException

name is a null reference (Nothing in Visual Basic).

-or-

types is a null reference (Nothing in Visual Basic).

-or-

One of the elements in types is a null reference (Nothing in Visual Basic).

ArgumentException

types is multidimensional.

-or-

modifiers is multidimensional.

-or-

types and modifiers do not have the same length.

Although the default binder does not process ParameterModifier (the modifiers parameter), you can use the abstract System.Reflection.Binder class to write a custom binder that does process modifiers. ParameterModifier is only used when calling through COM interop, and only parameters that are passed by reference are handled.

The following BindingFlags filter flags can be used to define which properties 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 properties in the search.

  • Specify BindingFlags.NonPublic to include non-public properties (that is, private and protected properties) in the search.

  • 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.IgnoreCase to ignore the case of name.

  • BindingFlags.DeclaredOnly to search only the properties declared on the Type, not properties that were simply inherited.

See System.Reflection.BindingFlags for more information.

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.

.NET Framework

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

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

XNA Framework

Supported in: 3.0, 2.0, 1.0

Date

History

Reason

September 2009

Removed an erroneous statement that a null reference (Nothing in Visual Basic) is returned for non-public members outside the assembly, if caller lacks ReflectionPermission.

Content bug fix.

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