The srcText property is read-only and returns the full text of the line containing the error as a string. It returns an empty string if the error is because of XML that is not well-formed, and cannot be pinned down to a specific line.

In the following example the file 'currencies.xml' is loaded which includes an error: the slash character (/) is missing from the closing tag of the fourth 'currency' element. If a parse error occurs, as it does in this case, an alert displays the number of the line where it occurs, and the complete text of that line.

Note:
Where no parse error occurs, the errorCode property returns 0.

XML:
<currencies>
   <currency>CHF Swiss Francs</currency>
   <currency>DEM German Deutsche Marks</currency>
   <currency>GBP United Kingdom Pounds</currency>
   <currency>JPY Japanese Yen<currency>
   <currency>USD United States Dollars</currency>
</currencies>

Code (JavaScript):
xml_doc = new ActiveXObject("Microsoft.XMLDOM");
xml_doc.async = false;
xml_doc.load("currencies.xml");
err = xml_doc.parseError;
if (err.errorCode != 0)
   alert("Error on line " + err.line + "\n" + err.srcText);

The alert displays the following message:

Output:
Error on line 8
   <currency>JPY Japanese Yen<currency>