Question: I have data template dt1 in sitecore that has the field "header" in section "data".
I also have data template dt2 that has the field "header" in section "portal"
Finally I have data template dt3 that uses both dt1 and dt2 as base templates.

How can I, in xslt, find the content of portal/header?

In my code, when I write <sc:text field="header" />, I get the content of data/header (since this node comes first).
I know how to do this in .net, but I need to use xslt.

/callprat

Answer: 
You can't.

And frankly I don't know of any supported way to do it from .NET either.

This, straight out of the [Data Definition Reference](http://sdn.sitecore.net/upload/sitecore6/datadefinitionreference-a4.pdf), section 2.1.1

> 
> 2.1.1 Data Template Fields
> 
> 
> A data template field defines the user
>  interface control and other properties
>  that influence how the field behaves
>  in the Content Editor and Page Editor.
>  For more information about fields, see
>  Chapter 4, The Template Field. 
> 
> 
> Note When defining field names, ensure
>  that they are unique even between
>  field sections. Both XSLT and .NET
>  code use field names alone, without
>  reference to sections, to extract
>  content from fields.
> 
> 
>
I found a way around this in .Net on a project I was working on. One of the templates that the client had set up had "Buckets" which had different field sections, but the fields within were the same between buckets. I used LINQ to group the fields by Section name, then dealt with each grouping of fields.

```
var sections = currentItem.Fields.GroupBy(field => field.Section);
foreach (var section in sections)
{
    if (section.Key.StartsWith("Bucket"))
    {
        buckets.Add(new Bucket(section)); //I made a bucket item, 
                                          //and passed each IGrouping<Field> to it
    }
}

```