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Parser Errors

by Jan Egil Refsnes

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The parseError Object

If you try to open an XML document, the XML Parser might generate an error. By accessing the parseError object, the exact error code, the error text, and even the line that caused the error can be retrieved:


File Error

In this example we let the XML parser try to load a non existing file, and display some of its error properties:

var xmlDoc = new ActiveXObject("Microsoft.XMLDOM")
xmlDoc.async="false"
xmlDoc.load("ksdjf.xml")

document.write("<br>Error Code: ")
document.write(xmlDoc.parseError.errorCode)
document.write("<br>Error Reason: ")
document.write(xmlDoc.parseError.reason)
document.write("<br>Error Line: ")
document.write(xmlDoc.parseError.line)

Try it Yourself


XML Error

Now we let the parser load an XML document that is not well formed. (if you don't know what well formed XML is, read the XML part of this Web)

var xmlDoc = new ActiveXObject("Microsoft.XMLDOM")
xmlDoc.async="false"
xmlDoc.load("note_error.xml")

document.write("<br>Error Code: ")
document.write(xmlDoc.parseError.errorCode)
document.write("<br>Error Reason: ")
document.write(xmlDoc.parseError.reason)
document.write("<br>Error Line: ")
document.write(xmlDoc.parseError.line)

Try it Yourself or just look at the XML file


The parseError Properties

Property Description
errorCode Returns a long integer error code
reason Returns a string explaining the reason for the error
line Returns a long integer representing the line number for the error
linePos Returns a long integer representing the line position for the error
srcText Returns a string containing the line that caused the error
url Returns the url pointing the loaded document
filePos Returns a long integer file position of the error


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