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Getting System.Xml.XmlException: Name cannot begin with the ' ' character, hexadecimal value 0x20. Line 42, position 36

Tags:

c#

asp.net

I'm getting this error and all i've found so far is "remove the space", but there is no space. It is a script i found that will take a resume from any file format and extract the data (parse it) in order to put it into a SQL database...haven't gotten that far yet

ASP.net Code:

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="ResumeParser.aspx.cs"       Inherits="CsharpSamCodeResumeParser_USAResume" Debug="true" ValidateRequest="false" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
    <table style="width: 574px; height: 95px">
        <tr>
            <td style="width: 507px">
                Resume
                URL</td>
            <td style="width: 737px">
                <asp:TextBox ID="TxtUrl" runat="server" Width="424px"></asp:TextBox>
            </td>
        </tr>            
        <tr>
           <td colspan="2" align="center">                  
                    <asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Resume parser" /></td>
            </tr>
        </table>

    <table>
        <tr>
            <td style="width: 247px; height: 287px">
                PARSING RESULTS</td>
            <td style="width: 568px; height: 287px">
                <asp:TextBox ID="TxtOutput" runat="server" Height="276px" TextMode="MultiLine" Width="565px"></asp:TextBox></td>
        </tr>
    </table>

</div>
</form>

C#:

public partial class CsharpSamCodeResumeParser_USAResume : System.Web.UI.Page
{
//////////Configuration Setting/////////////////// 
string ServiceUrl = (string)ConfigurationSettings.AppSettings["webServiceUrl"];
protected void Page_Load(object sender, EventArgs e)
{

}

protected void Button1_Click(object sender, EventArgs e)
{
    ///////////////////Variable Start///////////////
    string url = TxtUrl.Text;        
    StringBuilder  strRequest =new StringBuilder();
    string userkey = (string)ConfigurationSettings.AppSettings["userKey"];
    string version = (string)ConfigurationSettings.AppSettings["Version"];
    string countryKey=(string)ConfigurationSettings.AppSettings["CountryKey"];
    /////////////////Variable End///////////////////


    strRequest.Append("<?xml version='1.0' encoding='utf-8'?>");
    strRequest.Append("<soap:Envelope xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xsd='http://www.w3.org/2001/XMLSchema' xmlns:soap='http://schemas.xmlsoap.org/soap/envelope/'>");
    strRequest.Append("<soap:Body>");
    strRequest.Append("<ParseResume xmlns='http://tempuri.org/'>");
    strRequest.Append("<url>" + url + "</url>");
    strRequest.Append("<key>" + userkey + "</key>");
    strRequest.Append("<version>" + version + "</version>");
    strRequest.Append("<countryKey>" + countryKey + "</countryKey>");
    strRequest.Append("</ParseResume>");
    strRequest.Append("</soap:Body>");
    strRequest.Append("</soap:Envelope>");
    ///////////////SOAP XML END///////////////////


    /////////////////XML PROCESSED//////////////////////
    byte[] byteArray = Encoding.ASCII.GetBytes(strRequest.ToString());
    HttpWebRequest httpRequest = (HttpWebRequest)WebRequest.Create(ServiceUrl);
    httpRequest.Credentials = CredentialCache.DefaultCredentials;
    httpRequest.Method = "POST";
    httpRequest.ContentType = "text/xml";
    httpRequest.ContentLength = byteArray.Length;
    Stream dataStream = httpRequest.GetRequestStream();
    dataStream.Write(byteArray, 0, byteArray.Length);
    dataStream.Close();
    /////////////////////PROCESS END////////////////

    //////////////////RESPONSE RECEIVED///////////////////////
    HttpWebResponse httpResponse = (HttpWebResponse)httpRequest.GetResponse();
    StreamReader streamReader = new StreamReader(httpResponse.GetResponseStream(), System.Text.Encoding.UTF8);
    string ack = string.Empty;
    //ack = streamReader.ReadToEnd().ToString();
    ////////////////////GET NODE VALUE FROM RESPONSE XML/////////////
    using (XmlReader reader = XmlReader.Create(streamReader))
    {
        while (reader.Read())
        {

            if (reader.NodeType == XmlNodeType.Element)
            {

                for (int count = 1; count <= reader.Depth; count++)
                {
                    if (reader.Name == "ParseResumeResult")
                    {
                        ack = reader.ReadElementContentAsString();
                    }

                }

            }
        }

        TxtOutput.Text = ack;
    }
    /////////////////API CALL PROCESS END///////////////////

}

}
like image 822
user1574685 Avatar asked Sep 19 '12 15:09

user1574685


1 Answers

I suspect that because you are creating your xml document via string concatenation, that you are inadvertently adding malformed xml from one of your variables. Maybe one of them has a less than sign, which is causing the Xml parser to bomb. You should try creating the document via a DOM, or possibly using CDATA sections for the configurable values.

string url = TxtUrl.Text;        
string userkey = (string)ConfigurationSettings.AppSettings["userKey"];
string version = (string)ConfigurationSettings.AppSettings["Version"];
string countryKey=(string)ConfigurationSettings.AppSettings["CountryKey"];    

strRequest.Append("<url>" + url + "</url>");
strRequest.Append("<key>" + userkey + "</key>");
strRequest.Append("<version>" + version + "</version>");
strRequest.Append("<countryKey>" + countryKey + "</countryKey>");

I would try writing the strRequest StringBuilder to a file, and then just open it in an xml editor, and track down where the problem is.

like image 179
Seth Flowers Avatar answered Oct 04 '22 01:10

Seth Flowers