How to deal with empty attributes?

[Daniel Lidström]

Hi,

I want to know how I can deal with empty attributes, like this example:
<Spiral constant="">
</Spiral>

My Spiral implementation contains this code:
[System::Xml::Serialization::XmlIgnoreAttribute]
bool constantSpecified;
[System::Xml::Serialization::XmlAttributeAttribute]
__property double get_constant();
__property void set_constant(double s);

As you can see, I'm using MC++. But when I try to de-serialize a Spiral
with empty constant, I get an exception: ``There is an error in XML
document (16, 120).'' What can I do? I don't want to change data type from
double to String, if I really don't have to. I don't really need the
constant attribute when de-serializing, but I want to write it when I
serialize.
Thanks for any help!

--
Daniel

[Dino Chiesa [Microsoft]]

Daniel! We meet again.

If the schema says that the constant attribute is a double, then I think you
have some invalid XML there.
Regardless, I also think it should be possible to do some fancy footwork to
get the serialization to work.

This is an example for dealing with a nil Date.
http://www.winisp.net/cheeso/srcview...=XsiNilDate.cs
Same idea should apply to doubles.

-Dino

--
Dino Chiesa
Microsoft Developer Division
d i n o c h @ OmitThis . m i c r o s o f t . c o m

"Daniel Lidström" <so*****@microsoft.com> wrote in message
news:19*****************************@40tude.net...

Hi,

I want to know how I can deal with empty attributes, like this example:
<Spiral constant="">
</Spiral>

My Spiral implementation contains this code:
[System::Xml::Serialization::XmlIgnoreAttribute]
bool constantSpecified;
[System::Xml::Serialization::XmlAttributeAttribute]
__property double get_constant();
__property void set_constant(double s);

As you can see, I'm using MC++. But when I try to de-serialize a Spiral
with empty constant, I get an exception: ``There is an error in XML
document (16, 120).'' What can I do? I don't want to change data type from
double to String, if I really don't have to. I don't really need the
constant attribute when de-serializing, but I want to write it when I
serialize.
Thanks for any help!

--
Daniel