Type.GetProperty Method (String)
Searches for the public property with the specified name.
Assembly: mscorlib (in mscorlib.dll)
abstract GetProperty : name:string -> PropertyInfo override GetProperty : name:string -> PropertyInfo
- Type: System.String
The string containing the name of the public property to get.
Return ValueType: System.Reflection.PropertyInfo
An object representing the public property with the specified name, if found; otherwise, a null reference (Nothing in Visual Basic).
The search for name is case-sensitive. The search includes public static and public instance properties.
A property is considered public to reflection if it has at least one accessor that is public. Otherwise the property is considered private, and you must use BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Static (in Visual Basic, combine the values using Or) to get it.
If the current Type represents a type parameter in the definition of a generic type or generic method, this method searches the properties of the class constraint.
Situations in which AmbiguousMatchException occurs include the following:
A type contains two indexed properties that have the same name but different numbers of parameters. To resolve the ambiguity, use an overload of the GetProperty method that specifies parameter types.
A derived type declares a property that hides an inherited property with the same name, by using the new modifier (Shadows in Visual Basic). To resolve the ambiguity, use the GetProperty(String, BindingFlags) method overload and add the BindingFlags.DeclaredOnly flag to restrict the search to members that are not inherited.
Indexers and Default Properties
Visual Basic 2005, Visual C# 2005, and Visual C++ 2005 have simplified syntax for accessing indexed properties and allow one indexed property to be a default for its type. For example, if the variable myList refers to an ArrayList, the syntax myList (myList(3) in Visual Basic) retrieves the element with the index of 3. You can overload the property.
In C#, this feature is called an indexer and cannot be refered to by name. By default, a C# indexer appears in metadata as an indexed property named "Item". However, a class library developer can use the IndexerNameAttribute attribute to change the name of the indexer in the metadata. For example, the String class has an indexer named Chars. Indexed properties created using languages other than C# can have names other than Item, as well.
To determine whether a type has a default property, use the GetCustomAttributes(Type, Boolean) method to test for the DefaultMemberAttribute attribute. If the type has DefaultMemberAttribute, the MemberName property returns the name of the default property.
The following example retrieves the Type object of a user-defined class, retrieves a property of that class, and displays the property name.
Internally, this property is referred to in the metadata by the name "Item." Any attempt to get PropertyInfo using reflection must specify this internal name in order to correctly return the PropertyInfo property.
.NET FrameworkSupported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1
.NET Framework Client ProfileSupported in: 4, 3.5 SP1
XNA FrameworkSupported in: 3.0, 2.0, 1.0
Portable Class LibrarySupported in: Portable Class Library
Supported in: Windows Phone 8.1
Supported in: Windows Phone Silverlight 8.1
Supported in: Windows Phone Silverlight 8