it too complex code to make this reducing in short time

i denied to use any xml in project in default ns equals to ''
and just precede "with namespaces (default 'myns',  
'http://www.w3.org/1999/xhtml' as "xhtml")" all sql statements that produces 
xml - it little more complex but much more manageable, but error still 
reproduced (or same error or if remove defaultns='...' then still have 
<xhtml:h1 xmlns="">...</xhtml:h1> in output)

"Martin Honnen" wrote:

> 
> 
> Slava Sedov wrote:
> 
> 
> > Server Error in '/publ2005' Application.
> 
> So you are using ASP.NET, is that right?
> 
> > Cannot construct namespace declaration 
> > xmlns:='http://www.w3.org/1999/xhtml'. Prefix '' is already mapped to 
> > namespace ''.
> > Description: An unhandled exception occurred during the execution of the 
> > current web request. Please review the stack trace for more information about 
> > the error and where it originated in the code.
> > 
> > Exception Details: System.Xml.Xsl.XslTransformException: Cannot construct 
> > namespace declaration xmlns:='http://www.w3.org/1999/xhtml'. Prefix '' is 
> > already mapped to namespace ''.
> > 
> > Source Error:
> > 
> > Line 260:        };
> > Line 261:
> > Line 262:        xsltransform.Transform(xml, xsltargs, writer);
> > Line 263:    }
> > Line 264:    public static void WriteXML(XmlDocument xml)
> > 
> > 
> > Source File: c:\Inetpub\wwwroot\publ2005\mypage.cs    Line: 262
> 
> > Version Information: Microsoft .NET Framework Version:2.0.50215.312; ASP.NET 
> > Version:2.0.50215.312
> 
> ASP.NET 2.0 even.
> 
> It is not possible for me to see from the stack trace what you are 
> actually doing in the ASP.NET page, the line above obviously suggests 
> that you are calling XslTransform.Transform with some XmlDocument, some 
> args and some writer.
> 
> Can you try to reduce the code and post a minimal example of the .NET 
> code, the XML input and the XSLT stylesheet creating the error?
> 
> 
> -- 
> 
> 	Martin Honnen --- MVP XML
> 	http://JavaScript.FAQTs.com/
>