Type::GetMember Method (String)
Updated: September 2009
Searches for the public members with the specified name.
Assembly: mscorlib (in mscorlib.dll)
Parameters
- name
- Type: System::String
The String containing the name of the public members to get.
Return Value
Type: array<System.Reflection::MemberInfo>An array of MemberInfo objects representing the public members with the specified name, if found; otherwise, an empty array.
Implements
_Type::GetMember(String)| Exception | Condition |
|---|---|
| ArgumentNullException | name is nullptr. |
The search for name is case-sensitive. The search includes public static and public instance members.
Members include properties, methods, fields, events, and so on.
The GetMember method does not return members in a particular order, such as alphabetical or declaration order. Your code must not depend on the order in which members are returned, because that order varies.
This method overload will not find class initializers (.cctor). To find class initializers, use an overload that takes BindingFlags, and specify BindingFlags::Static | BindingFlags::NonPublic (BindingFlags::Static Or BindingFlags::NonPublic in Visual Basic). You can also get the class initializer using the TypeInitializer property.
The following table shows what members of a base class are returned by the Get methods when reflecting on a type.
Member Type | Static | Non-Static |
|---|---|---|
Constructor | No | No |
Field | No | Yes. A field is always hide-by-name-and-signature. |
Event | Not applicable | The common type system rule is that the inheritance is the same as that of the methods that implement the property. Reflection treats properties as hide-by-name-and-signature. See note 2 below. |
Method | No | Yes. A method (both virtual and non-virtual) can be hide-by-name or hide-by-name-and-signature. |
Nested Type | No | No |
Property | Not applicable | The common type system rule is that the inheritance is the same as that of the methods that implement the property. Reflection treats properties as hide-by-name-and-signature. See note 2 below. |
Hide-by-name-and-signature considers all of the parts of the signature, including custom modifiers, return types, parameter types, sentinels, and unmanaged calling conventions. This is a binary comparison.
For reflection, properties and events are hide-by-name-and-signature. If you have a property with both a get and a set accessor in the base class, but the derived class has only a get accessor, the derived class property hides the base class property, and you will not be able to access the setter on the base class.
Custom attributes are not part of the common type system.
If the current Type represents a constructed generic type, this method returns the MemberInfo 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 members of the class constraint, or the members of Object if there is no class constraint.
Note: |
|---|
For generic methods, do not include the type arguments in name. For example, the C# code GetMember("MyMethod<int>") searches for a member with the text name "MyMethod<int>", rather than for a method named MyMethod that has one generic argument of type int. |
The following example displays all the members of the String class that start with the letter C.
using namespace System; using namespace System::Security; using namespace System::Reflection; // forward declarations: void GetMemberInfo(); void GetPublicStaticMemberInfo(); void GetPublicInstanceMethodMemberInfo(); int main() { try { GetMemberInfo(); GetPublicStaticMemberInfo(); GetPublicInstanceMethodMemberInfo(); } catch ( ArgumentNullException^ e ) { Console::WriteLine( "ArgumentNullException occurred." ); Console::WriteLine( "Source: {0}", e->Source ); Console::WriteLine( "Message: {0}", e->Message ); } catch ( NotSupportedException^ e ) { Console::WriteLine( "NotSupportedException occurred." ); Console::WriteLine( "Source: {0}", e->Source ); Console::WriteLine( "Message: {0}", e->Message ); } catch ( SecurityException^ e ) { Console::WriteLine( "SecurityException occurred." ); Console::WriteLine( "Source: {0}", e->Source ); Console::WriteLine( "Message: {0}", e->Message ); } catch ( Exception^ e ) { Console::WriteLine( "Exception occurred." ); Console::WriteLine( "Source: {0}", e->Source ); Console::WriteLine( "Message: {0}", e->Message ); } } void GetMemberInfo() { String^ myString = "GetMember_String"; Type^ myType = myString->GetType(); // Get the members for myString starting with the letter C. array<MemberInfo^>^myMembers = myType->GetMember( "C*" ); if ( myMembers->Length > 0 ) { Console::WriteLine( "\nThe member(s) starting with the letter C for type {0}:", myType ); for ( int index = 0; index < myMembers->Length; index++ ) Console::WriteLine( "Member {0}: {1}", index + 1, myMembers[ index ] ); } else Console::WriteLine( "No members match the search criteria." ); }
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 | Removed an erroneous statement that nullptr is returned for non-public members outside the assembly, if caller lacks ReflectionPermission. | Content bug fix. |
Note: