Process XML in C# using external entity file -

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i processing xml file (which not contain dtd or ent declarations) in c# contains entities such é , à. receive following exception when attempting load xml file...

xmldocument xmldoc = new xmldocument(); xmldoc.loadxml(record);

reference undeclared entity 'eacute'.

i able track down proper ent file here. how tell xmldocument use ent file when loading xml file?

in versions of framework prior .net 4 use prohibitdtd of xmlreadersettings instance.

var settings = new xmlreadersettings();  settings.prohibitdtd = false;  string dtd = @"<!doctype doc [     <!entity % iso-lat1 public ""iso 8879:1986//entities added latin 1//en//xml""     ""http://www.oasis-open.org/docbook/xmlcharent/0.3/iso-lat1.ent"">     %iso-lat1;     ]> ";  string xml = string.concat(dtd,"<xml><txt>ren&eacute;</txt></xml>");  xmldocument xd = new xmldocument(); xd.load(xmlreader.create(new memorystream(         utf8encoding.utf8.getbytes(xml)), settings));

from .net 4.0 onward use dtdprocessing property value of dtdprocessing.parse set on xmltextreader.

xmldocument xd = new xmldocument(); using (var rdr = new xmltextreader(new stringreader(xml))) {     rdr.dtdprocessing = dtdprocessing.parse;     xd.load(rdr); }

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