Only one top level element is allowed in an XML document.

Hello,

I have a webservice that returns an XML data but I get this error "Only one top level element is allowed in an XML document. Error processing resource".

I validate the xml using "http://validator.w3.org/check" and it was well formed but I still get the error above.

shoes.xml

<?xml version="1.0" encoding="iso-8859-1" ?>
<shoes>
    <type>
        <name>Nike</name>
        <stock>166</stock>
    </type>
    <type>
        <name>Puma</name>
        <stock>152</stock>
    </type>
    <type>
        <name>Sketchers</name>
        <stock>310</stock>
    </type>
</shoes>

Webservice

    <WebMethod()> _
    Public Function myShoesInfo() As System.Xml.XmlElement
        Dim doc As New System.Xml.XmlDocument

        doc.Load(Server.MapPath("~/xml-files/shoes.xml"))

        Return doc.DocumentElement
    End Function

HomeController

        Public Function DisplayShoesInformation() As System.Xml.XmlElement

            Return IRepositoryWebService.myShoesInfo()
        End Function

Index

  $.get("/Home/DisplayShoesInformation", function (e) {
        $(xml).find("shoes").each(function () {
            var test = $(this).find("type").text();

            alert(test);
        });
    }, "xml");

Thank You,

-imperialx

Re: Only one top level element is allowed in an XML document.

Take a look at following links

http://forums.asp.net/t/1062792.aspx/1

http://www.webmasterworld.com/forum26/325.htm

Re: Only one top level element is allowed in an XML document.

Set a breakpoint on webservice at this line "

Return doc.DocumentElement

Check the value returned and post here.

Re: Only one top level element is allowed in an XML document.

devensawant
Take a look at following links

Thanks for those links but I don't have any missing tags.

Re: Only one top level element is allowed in an XML document.

Yes i have seen that your xml dont have any problem, but have read that links properly, there is a possibility that before returning the xml string it is getting altered/changed somewhere

as suggested by tiagosalgado add a break point to your web service and check what exactly you are getting

Re: Only one top level element is allowed in an XML document.

tiagosalgado
Check the value returned and post here.

Hi tiagosalgado,

There are quite a number of properties in there, which one should I post?

Thank You,

-imperialx

Re: Only one top level element is allowed in an XML document.

tiagosalgade is asking you to post value returned by

return doc.DocumentElement statement

Re: Only one top level element is allowed in an XML document.

devensawant
tiagosalgade is asking you to post value

sorry for the misinterpretation, here is the returned value.

{Element, Name="shoes"}

Re: Only one top level element is allowed in an XML document.

Is the returned statement returning you just a single element

Re: Only one top level element is allowed in an XML document.

imperialx

devensawant
tiagosalgade is asking you to post value

sorry for the misinterpretation, here is the returned value.

{Element, Name="shoes"}

Hum, okey, so where do you get that error? On your webservice? Or on your javascript code?

Re: Only one top level element is allowed in an XML document.

tiagosalgado
where do you get that error? On your webservice? Or on your javascript code?

It's on the webservice. Did I correctly return a type of System.Xml.XmlElement or should it be on another type?

Re: Only one top level element is allowed in an XML document.

insted of xmlelement return string from there

Re: Only one top level element is allowed in an XML document.

devensawant
return string from there

It returns a literal string "System.Xml.XmlElement".

<WebMethod()> _
    Public Function myShoesInfo() As String
        Dim doc As New System.Xml.XmlDocument
 
        doc.Load(Server.MapPath("~/xml-files/shoes.xml"))
 
        Return doc.DocumentElement.ToString
    End Function

Re: Only one top level element is allowed in an XML document.

return the text inside shoes.xml, i.e total xml as a string

Re: Only one top level element is allowed in an XML document.

imperialx

devensawant
return string from there

It returns a literal string "System.Xml.XmlElement".

<WebMethod()> _
    Public Function myShoesInfo() As String
        Dim doc As New System.Xml.XmlDocument
 
        doc.Load(Server.MapPath("~/xml-files/shoes.xml"))
 
        Return doc.DocumentElement.ToString
    End Function

Change to return doc.InnerXml;

Re: Only one top level element is allowed in an XML document.

devensawant
return the text inside shoes.xml

sorry, but, how can i return the text from shoes.xml? I get this error 'Invalid at the top level of the document'

Re: Only one top level element is allowed in an XML document.

return doc.InnerXml as suggested by tiagosalgado

Re: Only one top level element is allowed in an XML document.

tiagosalgado

Change to return doc.InnerXml;

That part works, thanks!

But if you look at code for the Index page above, no alert dialog box pops-up.

Re: Only one top level element is allowed in an XML document.

Check out the below link for parsing xml using jQuery

http://www.switchonthecode.com/tutorials/xml-parsing-with-jquery

Re: Only one top level element is allowed in an XML document.

Thank All for the help Guys! Appreciate it!