Different Namespaces

[Bob Ross]

I tihnk I understand the concept of namespaces but I am having a little trouble working them out.
What is the difference between -

• xmlns
• xmlns:xs
• xmlns:xsi
• targetnamespace

?

Also which do you use in your schema and which in your document?

[jkmyoung]

xmlns the namespace that is currently being used for this element
xmlns:xs the namespace bound to the xs prefix. Typically this is the (xml schema) schema prefix, being "http://www.w3.org/2001/XMLSchema"
xmlns:xsi the namespace bound to the xsi prefix. This is also generally the (xml schema) schema prefix.
targetnamespace the namespace of current schema file

http://www.w3schools.com/schema/el_schema.asp

Maybe if we could see how you're trying to use it it could clear up the confusion.

[Bob Ross]

Thanks for your help.
I am simply trying to write an XML schema and document to go with.
Here is the root node for my schema -

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" targetNamespace="https://eol.eurofins.co.uk" elementFormDefault="unqualified" attributeFormDefault="unqualified">

And here is my root node for my document -

<eol:User xmlns:eol="https://eol.eurofins.co.uk" 
          xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:schemaLocation="https://eol.eurofins.co.uk UserConfigSchema.xsd">

Any guidance on what I'm doing wrong would be very appreciated.
thanks

[Bob Ross]

Can anyone help me work out which namespace I should put where in my schema and XML document?

[jkmyoung]

Probably should be like so:

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" targetNamespace="https://eol.eurofins.co.uk"  xmlns="https://eol.eurofins.co.uk" elementFormDefault="qualified" attributeFormDefault="unqualified">

[Bob Ross]

Thanks for that.

What then should be put in the root of the XML document to make it compatible?

[jkmyoung]

Does it not validate as is? If not, what error message are you getting?

[Bob Ross]

I have to admit I don't know how to validate an XML file against a custom schema. All I can find is online tools to validate against W3C schemas.

[jkmyoung]

Have you tried using a xml editor application to validate against a schema?

Or you might try a link like so:

http://tools.decisionsoft.com/schemaValidate/

[Bob Ross]

Thanks very much.
That tool was exactly what I had been look for for some time without luck.