Deserialization error in XML document(1,1)

Question

I have an XML file that I deserialize, the funny part is the XML file is the was serialized using the following code:

enter code here
var serializer = new XmlSerializer(typeof(CommonMessage));
var writer = new StreamWriter("OutPut.txt");
serializer.Serialize(writer, commonMessage);
writer.Close();

And i m trying to deserialized it again to check if the output match the input. anyhow here is my code to deserialize:

var serializer = new XmlSerializer(typeof(CommonMessage));
var reader = new StringReader(InputFileName);
CommonMessage commonMessage = (CommonMessage)serializer.Deserialize(reader);

Have you serialized it using one encoding and now are trying to deserialize with another encoding? — Oded, Jan 18 '11 at 16:08
no here is what i use the serialized var serializer = new XmlSerializer(typeof(CommonMessage)); var writer = new StreamWriter("OutPut.txt"); serializer.Serialize(writer, commonMessage); writer.Close(); — jprbest, Jan 18 '11 at 16:13
@jprbest - if you want to add information, please _edit_ the question and add the detail there instead of a comment. — Oded, Jan 18 '11 at 16:14
from my experience, error at (1,1) most often results from me opening a document with a notepad and accidentally putting a space or a new line at the top. — THX-1138, Jan 18 '11 at 16:20
There should be better details in the InnerException. Can you share those details? — Austin Salonen, Jan 18 '11 at 16:34

score 36 · Accepted Answer · answered Jan 18 '11 at 17:03

36

Replace StringReader with StreamReader and it will work fine. StringReader reads value from the string (which is file name in your case).

answered Jan 18 '11 at 17:03

Alexei Levenkov

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this was the problem because the stream reader/writer encode/decode using UTF 8 while string reader/writer encode/decode usng UTF 16 – jprbest Jan 18 '11 at 18:08
So many thanks for this! This is an error so subtle, for sure you can search it for long time without finding the problem... – JoeFox Jun 02 '15 at 14:10
Worked well for me. Had to ignore DtDProcessing as well. – Stephen Pefanis Apr 04 '19 at 10:35

score 2 · Answer 2 · answered Sep 25 '13 at 11:43

I just had the same error message but different error source. In case someone has the same problem like me. I chopped off the very first char of my xml string by splitting strings. And the xml string got corrupted:

"?xml version="1.0" encoding="utf-16"?> ..." // my error
"<?xml version="1.0" encoding="utf-16"?> ..." // correct

(1,1) means basically first char of the first line is incorrect and the string can't be deserialized.

score 1 · Answer 3 · answered Jun 19 '17 at 07:32

1

include in your CommonMessage class the XmlRoot element tag with your xmlroot eg:[XmlRoot("UIIVerificationResponse")]

answered Jun 19 '17 at 07:32

asams

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score 0 · Answer 4 · answered Mar 02 '22 at 22:36

You should disable the order mark in the StreamWriter constructor like this:

UTF8Encoding(false)

Full sample:

        using (MemoryStream stream = new MemoryStream())
        using (StreamWriter writer = new StreamWriter(stream, new UTF8Encoding(false)))
        {
            xmlSerializer.Serialize(writer, objectToSerialize, ns);

            return Encoding.UTF8.GetString(stream.ToArray());
        }

Deserialization error in XML document(1,1)

4 Answers4

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