c# - Update Word (OpenXml) Content Control DataBinding programmatically - figure out XPath -


update: solved problem (with of code http://dbe.codeplex.com).

i have issue metadata xml file not being shown in word file. says [myfieldname] rather example 3354.

i figured out reason quick part not working databinding.

  • if add second quick part in word , link same document property show metadata property fine.
  • if add "working" databinding not working sdtblock (sdtproperties) - original control work well!

the following code fixes second field control has invalid databinding.

databinding validbinding = null; int count = 0; foreach (openxmlelement openxmlelement in _contentcontrols) {     sdtproperties sdtproperties = openxmlelement.elements<sdtproperties>().firstordefault();     if (sdtproperties == null)     {         throw new exception("expected find sdt properties!");     }      tag tag = sdtproperties.elements<tag>().firstordefault();     console.writeline("\nprocessing sdt: {0}.", tag.val);      sdtcontentrun sdtcontent = openxmlelement.elements<sdtcontentrun>().single();     console.writeline("current value: " + sdtcontent.innertext);      if (!sdtcontent.innertext.startswith("["))     {         // working control         console.writeline("found working control");         validbinding = sdtproperties.elements<databinding>().single();     }     else     {         console.writeline("found not working control");         databinding databinding = sdtproperties.elements<databinding>().firstordefault();         if (databinding != null) databinding.remove();          databinding = new databinding();         //databinding.prefixmappings = validbinding.prefixmappings;         databinding.xpath = validbinding.xpath;         databinding.storeitemid = _customxmlpart.customxmlpropertiespart.datastoreitem.itemid;         sdtproperties.append(databinding);     } }

how create new working databinding without creating quick part in ms word , copying settings?

databinding databinding = new databinding(); //databinding.prefixmappings = validbinding.prefixmappings; //databinding.xpath = validbinding.xpath; databinding.storeitemid = _customxmlpart.customxmlpropertiespart.datastoreitem.itemid;

how xpath?
working databinding looks <w:databinding w:xpath="/ns0:properties[1]/documentmanagement[1]/ns6:myfieldname[1]" w:storeitemid="{45c2489e-0875-4e37-ae02-cfeafc2294dc}" />

  1. why there no prefixmapping? apparently not required.
  2. still uses ns6:myfieldname , wonder ns6 defined..?

why /ns6:myfieldname[1]? how know not ns374?

the ns#: entries references namespaces nodes belong (namespace prefixes). these assigned word @ run-time , unpredictable. means that, @ point in future, ns6 may not work.

therefore have namespace management @ run-time prefix given namespace. you'll need namespace literals in order this.

ns0, example, may one: xmlns="http://schemas.openxmlformats.org/officedocument/2006/custom-properties

if you've used namespace in custom xml in customxmlpart you're linking content controls, 1 assigned ns6.


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