Inherit attribute with interface ?

[TruongLapVi]

Hi everybody,

I have write customize attribute TestAttribute

[AttributeUsage( AttributeTarget s.All, Inherited = true)]
public class TestAttribute : Attribute
{
private string name;
public TestAttribute(s tring name)
{
this.name = name;
}
}

[TestAttribute(" Test test")]
public interface TestInterface
{
void function();
}

public class TestClass : TestInterface
{
public void function()...
}

But why TestClass does not inherit TestAttribute from TestInterface ???

Type t = typeof(DerivedC lass);

TestAttribute testAttr = (TestAttribute) Attribute.GetCu stomAttribute(t ,
typeof(TestAttr ibute));

testAttr alway null. Can anybody help me ?
Thanks.
--
Vi

[Vijaye Raji]

Did you try

TestAttribute testAttr = (TestAttribute) Attribute.GetCu stomAttribute(t ,
typeof(TestAttr ibute), true);

[Note the "true" at the end of the call]

The true tells the method to look for this attribute in the full inheritance
chain.

-vJ

"TruongLapV i" <tr*********@ho tmail.com> wrote in message
news:OI******** ******@TK2MSFTN GP12.phx.gbl...

Hi everybody,

I have write customize attribute TestAttribute

[AttributeUsage( AttributeTarget s.All, Inherited = true)]
public class TestAttribute : Attribute
{
private string name;
public TestAttribute(s tring name)
{
this.name = name;
}
}

[TestAttribute(" Test test")]
public interface TestInterface
{
void function();
}

public class TestClass : TestInterface
{
public void function()...
}

But why TestClass does not inherit TestAttribute from TestInterface ???

Type t = typeof(DerivedC lass);

TestAttribute testAttr = (TestAttribute) Attribute.GetCu stomAttribute(t ,
typeof(TestAttr ibute));

testAttr alway null. Can anybody help me ?
Thanks.
--
Vi

[TruongLapVi]

Thanks you for answer,
I have try it, but the result is still "null" :(.

"Vijaye Raji" <no************ @hotmail.com> wrote in message
news:eK******** ******@tk2msftn gp13.phx.gbl...

Did you try

TestAttribute testAttr = (TestAttribute) Attribute.GetCu stomAttribute(t ,
typeof(TestAttr ibute), true);

[Note the "true" at the end of the call]

The true tells the method to look for this attribute in the full inheritance chain.

-vJ

[100]

Hi TruongLap,
It seems like attributes cannot be inherited from interfaces. If you try and
make TestInterface class instead of interface you will find out that
everything works how it suppose to.

B\rgds
100

"TruongLapV i" <tr*********@ho tmail.com> wrote in message
news:OI******** ******@TK2MSFTN GP12.phx.gbl...

Hi everybody,

I have write customize attribute TestAttribute

[AttributeUsage( AttributeTarget s.All, Inherited = true)]
public class TestAttribute : Attribute
{
private string name;
public TestAttribute(s tring name)
{
this.name = name;
}
}

[TestAttribute(" Test test")]
public interface TestInterface
{
void function();
}

public class TestClass : TestInterface
{
public void function()...
}

But why TestClass does not inherit TestAttribute from TestInterface ???

Type t = typeof(DerivedC lass);

TestAttribute testAttr = (TestAttribute) Attribute.GetCu stomAttribute(t ,
typeof(TestAttr ibute));

testAttr alway null. Can anybody help me ?
Thanks.
--
Vi