WriteXML and xmlns attribute
in [CSharp]
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From: rno on 24 May 2010 16:36 Hi, I have a dataset in my application that I write to an XML file using WriteXML. The resulting XML file has a xmlns namespace attribute as part of the root element. When I try and create an XSL file to display some data in a browser, I do not get any output unless I strip out the attribute. (I am very new to this stuff). I suppose I could tackle this in two ways: 1. try to make the WriteXML method to omit the namespace attribute 2. create the XSL so that it can cope with it. I think 2. is not for this newsgroup, so my question is: is it possible to have WriteXML omit the namespace attribute? Is it wise? It is my understanding that the namespace is used for disambiguation of the xml elements, but in my case, I don't need to (I think). (A third option would be of course to read the XML file back in and delete it the xmlns attribute, but that does not strike me as a particularly good practice.) tia, arno
From: Martin Honnen on 25 May 2010 06:14 rno wrote: > I have a dataset in my application that I write to an XML file using > WriteXML. The resulting XML file has a xmlns namespace attribute as > part of the root element. > > When I try and create an XSL file to display some data in a browser, I > do not get any output unless I strip out the attribute. (I am very new > to this stuff). > > I suppose I could tackle this in two ways: > > 1. try to make the WriteXML method to omit the namespace attribute > 2. create the XSL so that it can cope with it. > > I think 2. is not for this newsgroup, so my question is: is it > possible to have WriteXML omit the namespace attribute? Is it wise? It > is my understanding that the namespace is used for disambiguation of > the xml elements, but in my case, I don't need to (I think). Can you share the code creating and populating the DataSet with data? I don't think any namespace is the default with WriteXml thus if you want help to avoid the namespace in the result of WriteXml we first need to understand why you get XML with a default namespace declaration. As for dealing with the namespace when writing XSLT to process the XML see http://www.dpawson.co.uk/xsl/sect2/N5536.html#d7035e187 or ask in microsoft.public.dotnet.xml showing us the exact XML. -- Martin Honnen --- MVP Data Platform Development http://msmvps.com/blogs/martin_honnen/
From: rno on 25 May 2010 07:32 It's a dataset I created with the designer. Your post triggered me to have a closer look at it, and in the xsd designer, I cleared the Namespace property (it was set to http://tempuri.org/myDataset.xsd, which I believe is default behaviour of the designer), that being the line I did not want written to the XML. When I saved it, it screwed up the entire project :( The xsd code is completely empty now, as well as the corresponding cs file. Out of the tsunami of error messages, I think this one is the important one: "Error 74 Custom tool error: Failed to generate code. Unable to convert input xml file content to a DataSet. There are multiple root elements. Line 175, position 2." on the myDataset.xsd file. Which has 1 line?! Until I fooled around with the namespace property in the designer, all was peachy. So apparently I should not have cleared the Namespace property, and I am stuck with a broken project now. Would appreciate some advice on how to sort this out, if possible. tia arno In article <e3bKeM$#KHA.4652(a)TK2MSFTNGP06.phx.gbl>, mahotrash(a)yahoo.de says...> > rno wrote: > > > I have a dataset in my application that I write to an XML file using > > WriteXML. The resulting XML file has a xmlns namespace attribute as > > part of the root element. > > > > When I try and create an XSL file to display some data in a browser, I > > do not get any output unless I strip out the attribute. (I am very new > > to this stuff). > > > > I suppose I could tackle this in two ways: > > > > 1. try to make the WriteXML method to omit the namespace attribute > > 2. create the XSL so that it can cope with it. > > > > I think 2. is not for this newsgroup, so my question is: is it > > possible to have WriteXML omit the namespace attribute? Is it wise? It > > is my understanding that the namespace is used for disambiguation of > > the xml elements, but in my case, I don't need to (I think). > > Can you share the code creating and populating the DataSet with data? I > don't think any namespace is the default with WriteXml thus if you want > help to avoid the namespace in the result of WriteXml we first need to > understand why you get XML with a default namespace declaration. > > As for dealing with the namespace when writing XSLT to process the XML > see http://www.dpawson.co.uk/xsl/sect2/N5536.html#d7035e187 or ask in > microsoft.public.dotnet.xml showing us the exact XML.
From: rno on 26 May 2010 19:02 anyone? Upon re-opening the C#.NET IDE, I can now not even open the dataset designer anymore, it complains about 'no external editor available'. All I did was clear the Namespace property in the IDE, so I am a bit surprised at these grave consequences - the whole project is effectively <beep>ed. tia arno On Tue, 25 May 2010 13:32:56 +0200, rno <none(a)empty.no> wrote: >It's a dataset I created with the designer. Your post triggered me to >have a closer look at it, and in the xsd designer, I cleared the >Namespace property (it was set to http://tempuri.org/myDataset.xsd, >which I believe is default behaviour of the designer), that being the >line I did not want written to the XML. > >When I saved it, it screwed up the entire project :( The xsd code is >completely empty now, as well as the corresponding cs file. Out of the >tsunami of error messages, I think this one is the important one: > >"Error 74 Custom tool error: Failed to generate code. Unable to >convert input xml file content to a DataSet. There are multiple root >elements. Line 175, position 2." on the myDataset.xsd file. Which has 1 >line?! > >Until I fooled around with the namespace property in the designer, all >was peachy. So apparently I should not have cleared the Namespace >property, and I am stuck with a broken project now. Would appreciate >some advice on how to sort this out, if possible. > >tia >arno > >In article <e3bKeM$#KHA.4652(a)TK2MSFTNGP06.phx.gbl>, mahotrash(a)yahoo.de >says...> >> rno wrote: >> >> > I have a dataset in my application that I write to an XML file using >> > WriteXML. The resulting XML file has a xmlns namespace attribute as >> > part of the root element. >> > >> > When I try and create an XSL file to display some data in a browser, I >> > do not get any output unless I strip out the attribute. (I am very new >> > to this stuff). >> > >> > I suppose I could tackle this in two ways: >> > >> > 1. try to make the WriteXML method to omit the namespace attribute >> > 2. create the XSL so that it can cope with it. >> > >> > I think 2. is not for this newsgroup, so my question is: is it >> > possible to have WriteXML omit the namespace attribute? Is it wise? It >> > is my understanding that the namespace is used for disambiguation of >> > the xml elements, but in my case, I don't need to (I think). >> >> Can you share the code creating and populating the DataSet with data? I >> don't think any namespace is the default with WriteXml thus if you want >> help to avoid the namespace in the result of WriteXml we first need to >> understand why you get XML with a default namespace declaration. >> >> As for dealing with the namespace when writing XSLT to process the XML >> see http://www.dpawson.co.uk/xsl/sect2/N5536.html#d7035e187 or ask in >> microsoft.public.dotnet.xml showing us the exact XML. >
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