Issue de-serializing XML to Object - There is an error in XML document (0, 0)

.net, c#, serialization, xml

Solution

I'm not too familiar with the `from select` statement, but it seems you just pass in `xml` which is the whole `XDocument`, instead of the `XElement` that is your `RewriteRule`. That is why you get the error message that `RewriteRules` is unknown - the `XmlSerializer` expects a single `RewriteRule`.

I managed to rewrite your code using `LINQ` instead (but if you know how to get the single element from the `from select` statement, that should work equally well).

This should give you the correct result - `rr` is the `XElement` that is returned from `Descendants`:

public static IEnumerable<Url> GetRewriteXML()
{
    XDocument xml = XDocument.Load(HttpContext.Current.Server.MapPath(fileName));

    var xmlSerializer = new XmlSerializer(typeof(Url));

    var nodes = xml.Descendants("RewriteRule")
                .Select(rr => xmlSerializer.Deserialize(rr.CreateReader()) as Url);

    return nodes;
}

Problem

I'm trying to read in element values from a simple XML doc and bind these to an object however I'm running into problems with my XML document. I have validated it and can confirm there are no issues with the document itself however expanding the results on the line: ``` var nodes = from xDoc in xml.Descendants("RewriteRule") select xmlSerializer.Deserialize(xml.CreateReader()) as Url; ``` Show "There is an error in XML document (0, 0)" The inner exceptions reads `<RewriteRules xmlns=''> was not expected.` I'm not sure what I'm doing wrong here? My XML is below: ``` <?xml version="1.0" encoding="utf-8" ?> <RewriteRules> <RewriteRule> <From>fromurl</From> <To>tourl</To> <Type>301</Type> </RewriteRule> </RewriteRules> ``` The code that loads the XML file and attempts to de-serialize it: - ``` public static UrlCollection GetRewriteXML(string fileName) { XDocument xml = XDocument.Load(HttpContext.Current.Server.MapPath(fileName)); var xmlSerializer = new XmlSerializer(typeof(Url)); var nodes = from xDoc in xml.Descendants("RewriteRule") select xmlSerializer.Deserialize(xml.CreateReader()) as Url; return nodes as UrlCollection; } ``` My Url object class: - ``` [Serializable] [XmlRoot("RewriteRule")] public class Url { [XmlElement("From")] public string From { get; set; } [XmlElement("To")] public string To { get; set; } [XmlElement("Type")] public string StatusCode { get; set; } public Url() { } public Url(Url url) { url.From = this.From; url.To = this.To; url.StatusCode = this.StatusCode; } } ``` Can anyone see what I'm doing wrong here? Thanks

Original source