Attribute.IsDefaultAttribute : Attributes « Reflection « C# / C Sharp
Attribute.IsDefaultAttribute
using System;
using System.Reflection;
public enum Animal
{
Dog = 1,
Cat,
Bird,
}
public class AnimalTypeAttribute : Attribute
{
public AnimalTypeAttribute(Animal pet)
{
thePet = pet;
}
public AnimalTypeAttribute()
{
thePet = Animal.Dog;
}
protected Animal thePet;
public Animal Pet
{
get { return thePet; }
set { thePet = Pet; }
}
public override bool IsDefaultAttribute()
{
if (thePet == Animal.Dog)
return true;
return false;
}
}
public class TestClass
{
[AnimalType]
public void Method1()
{}
}
class DemoClass
{
static void Main(string[] args)
{
Type clsType = typeof(TestClass);
MethodInfo mInfo = clsType.GetMethod("Method1");
AnimalTypeAttribute atAttr = (AnimalTypeAttribute)Attribute.GetCustomAttribute(mInfo,typeof(AnimalTypeAttribute));
Console.WriteLine("The attribute {0} for method {1} in class {2}",atAttr.Pet, mInfo.Name, clsType.Name);
Console.WriteLine("{0} the default for the AnimalType attribute.",atAttr.IsDefaultAttribute() ? "is" : "is not");
}
}
