LogicalMethodInfo.GetCustomAttribute Method
.NET Framework 2.0
Returns the first custom attribute applied to the type, if any custom attributes are applied to the type.
Namespace: System.Web.Services.Protocols
Assembly: System.Web.Services (in system.web.services.dll)
Assembly: System.Web.Services (in system.web.services.dll)
#using <System.Web.Services.dll> using namespace System; using namespace System::Reflection; using namespace System::Web::Services::Protocols; // Define a custom attribute with one named parameter. [AttributeUsage(AttributeTargets::Method|AttributeTargets::ReturnValue, AllowMultiple=true)] public ref class MyAttribute: public Attribute { private: String^ myName; public: MyAttribute( String^ name ) { myName = name; } property String^ Name { String^ get() { return myName; } } }; public ref class MyService { public: [MyAttribute("This is the first sample attribute")] [MyAttribute("This is the second sample attribute")] [returnvalue:MyAttribute("This is the return sample attribute")] int Add( int xValue, int yValue ) { return (xValue + yValue); } }; int main() { Type^ myType = MyService::typeid; MethodInfo^ myMethodInfo = myType->GetMethod( "Add" ); // Create a synchronous 'LogicalMethodInfo' instance. array<MethodInfo^>^temparray = {myMethodInfo}; LogicalMethodInfo^ myLogicalMethodInfo = (LogicalMethodInfo::Create( temparray, LogicalMethodTypes::Sync ))[ 0 ]; // Display the method for which the attributes are being displayed. Console::WriteLine( "\nDisplaying the attributes for the method : {0}\n", myLogicalMethodInfo->MethodInfo ); // Displaying a custom attribute of type 'MyAttribute' Console::WriteLine( "\nDisplaying attribute of type 'MyAttribute'\n" ); Object^ attribute = myLogicalMethodInfo->GetCustomAttribute( MyAttribute::typeid ); Console::WriteLine( (dynamic_cast<MyAttribute^>(attribute))->Name ); // Display all custom attribute of type 'MyAttribute'. Console::WriteLine( "\nDisplaying all attributes of type 'MyAttribute'\n" ); array<Object^>^attributes = myLogicalMethodInfo->GetCustomAttributes( MyAttribute::typeid ); for ( int i = 0; i < attributes->Length; i++ ) Console::WriteLine( (dynamic_cast<MyAttribute^>(attributes[ i ]))->Name ); // Display all return attributes of type 'MyAttribute'. Console::WriteLine( "\nDisplaying all return attributes of type 'MyAttribute'\n" ); ICustomAttributeProvider^ myCustomAttributeProvider = myLogicalMethodInfo->ReturnTypeCustomAttributeProvider; if ( myCustomAttributeProvider->IsDefined( MyAttribute::typeid, true ) ) { attributes = myCustomAttributeProvider->GetCustomAttributes( true ); for ( int i = 0; i < attributes->Length; i++ ) if ( attributes[ i ]->GetType()->Equals( MyAttribute::typeid ) ) Console::WriteLine( (dynamic_cast<MyAttribute^>(attributes[ i ]))->Name ); } // Display all the custom attributes of type 'MyAttribute'. Console::WriteLine( "\nDisplaying all attributes of type 'MyAttribute'\n" ); myCustomAttributeProvider = myLogicalMethodInfo->CustomAttributeProvider; if ( myCustomAttributeProvider->IsDefined( MyAttribute::typeid, true ) ) { attributes = myCustomAttributeProvider->GetCustomAttributes( true ); for ( int i = 0; i < attributes->Length; i++ ) if ( attributes[ i ]->GetType()->Equals( MyAttribute::typeid ) ) Console::WriteLine( (dynamic_cast<MyAttribute^>(attributes[ i ]))->Name ); } }
import System.*;
import System.Reflection.*;
import System.Web.Services.Protocols.*;
// Define a custom attribute with one named parameter.
/** @attribute AttributeUsage(AttributeTargets.Method
| AttributeTargets.ReturnValue, AllowMultiple = true)
*/
public class MyAttribute extends Attribute
{
private String myName;
public MyAttribute(String name)
{
myName = name;
} //MyAttribute
/** @property
*/
public String get_Name()
{
return myName;
} //get_Name
} //MyAttribute
public class MyService
{
/** @attribute MyAttribute("This is the first sample attribute")
*/
/** @attribute MyAttribute("This is the second sample attribute")
*/
/** @attribute.return MyAttribute("This is the return sample attribute")
*/
public int Add(int xValue, int yValue)
{
return xValue + yValue;
} //Add
} //MyService
public class LogicalMethodInfo_GetCustomAttribute
{
public static void main(String[] args)
{
Type myType = MyService.class.ToType();
MethodInfo myMethodInfo = myType.GetMethod("Add");
// Create a synchronous 'LogicalMethodInfo' instance.
LogicalMethodInfo myLogicalMethodInfo =
(LogicalMethodInfo)LogicalMethodInfo.Create(new MethodInfo[]
{ myMethodInfo }, LogicalMethodTypes.Sync).get_Item(0);
// Display the method for which the attributes are being displayed.
Console.WriteLine("\nDisplaying the attributes for the method : {0}\n",
myLogicalMethodInfo.get_MethodInfo());
// Displaying a custom attribute of type 'MyAttribute'
Console.WriteLine("\nDisplaying attribute of type 'MyAttribute'\n");
Object attribute = myLogicalMethodInfo.GetCustomAttribute(
MyAttribute.class.ToType());
Console.WriteLine(((MyAttribute)attribute).get_Name());
// Display all custom attribute of type 'MyAttribute'.
Console.WriteLine("\nDisplaying all attributes of type "
+ "'MyAttribute'\n");
Object attributes[] =
myLogicalMethodInfo.GetCustomAttributes(MyAttribute.class.ToType());
for (int i = 0; i < attributes.length; i++) {
Console.WriteLine(((MyAttribute)attributes.get_Item(i)).get_Name());
}
// Display all return attributes of type 'MyAttribute'.
Console.WriteLine("\nDisplaying all return attributes "
+ "of type 'MyAttribute'\n");
ICustomAttributeProvider myCustomAttributeProvider =
myLogicalMethodInfo.get_ReturnTypeCustomAttributeProvider();
if (myCustomAttributeProvider.IsDefined(MyAttribute.class.ToType(),
true)) {
attributes = myCustomAttributeProvider.GetCustomAttributes(true);
for (int i = 0; i < attributes.length; i++) {
if (attributes.get_Item(i).GetType().
Equals(MyAttribute.class.ToType())) {
Console.WriteLine(((MyAttribute)(attributes.get_Item(i))).
get_Name());
}
}
}
// Display all the custom attributes of type 'MyAttribute'.
Console.WriteLine("\nDisplaying all attributes of type 'MyAttribute'\n");
myCustomAttributeProvider =
myLogicalMethodInfo.get_CustomAttributeProvider();
if (myCustomAttributeProvider.IsDefined(MyAttribute.class.ToType(),
true)) {
attributes = myCustomAttributeProvider.GetCustomAttributes(true);
for (int i = 0; i < attributes.length; i++) {
if (attributes.get_Item(i).GetType().
Equals(MyAttribute.class.ToType())) {
Console.WriteLine(((MyAttribute)attributes.get_Item(i)).
get_Name());
}
}
}
} //main
} //LogicalMethodInfo_GetCustomAttribute
Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.Community Additions
ADD
Show: