private static string CreateCustomXmlPropertiesPart(CustomXmlPart customXmlPart)
{
XElement rootElement = customXmlPart.GetXElement();
if (rootElement == null)
{
throw new InvalidOperationException();
}
string storeItemId = "{" + Guid.NewGuid().ToString().ToUpper() + "}";
// Create a ds:dataStoreItem associated with the custom XML part's root element.
var dataStoreItem = new DataStoreItem
{
ItemId = storeItemId,
SchemaReferences = new SchemaReferences()
};
if (rootElement.Name.Namespace != XNamespace.None)
{
dataStoreItem.SchemaReferences.AppendChild(new SchemaReference {
Uri = rootElement.Name.NamespaceName
});
}
// Create the custom XML properties part.
var propertiesPart = customXmlPart.AddNewPart <CustomXmlPropertiesPart>();
propertiesPart.DataStoreItem = dataStoreItem;
propertiesPart.DataStoreItem.Save();
return(storeItemId);
}
private static void AssertValuesAreAsExpected(
WordprocessingDocument wordDocument,
string expectedValue)
{
// Retrieve inner text of w:sdt element.
MainDocumentPart mainDocumentPart = wordDocument.MainDocumentPart;
XElement sdt = FindSdtWithTag("Node", mainDocumentPart.GetXElement());
string sdtInnerText = GetInnerText(sdt);
// Retrieve inner text of custom XML element, making the simplifying
// assumption that we only have a single custom XML part. In reality,
// we would have to find the custom XML part to which our w:sdt elements
// are bound among any number of custom XML parts. Further, in our
// simplified example, we also assume there is a single ex:Node element.
CustomXmlPart customXmlPart = mainDocumentPart.CustomXmlParts.Single();
XElement root = customXmlPart.GetXElement();
XElement node = root.Elements(Ns + "Node").Single();
string nodeInnerText = node.Value;
// Assert those inner text are indeed equal.
Assert.Equal(expectedValue, sdtInnerText);
Assert.Equal(expectedValue, nodeInnerText);
}
public void CanUpdateCustomXmlAndMainDocumentPart()
{
// Define the initial and updated values of our custom XML element and
// the data-bound w:sdt element.
const string initialValue = "VALUE1";
const string updatedValue = "value2";
// Create the root element of the custom XML part with the initial value.
var customXmlRoot =
new XElement(Ns + "Root",
new XAttribute(XNamespace.Xmlns + NsPrefix, NsName),
new XElement(Ns + "Node", initialValue));
// Create the w:sdtContent child element of our w:sdt with the initial value.
var sdtContent =
new XElement(W.sdtContent,
new XElement(W.p,
new XElement(W.r,
new XElement(W.t, initialValue))));
// Create a WordprocessingDocument with the initial values.
using var stream = new MemoryStream();
using (WordprocessingDocument wordDocument = WordprocessingDocument.Create(stream, Type))
{
InitializeWordprocessingDocument(wordDocument, customXmlRoot, sdtContent);
}
// Assert the WordprocessingDocument has the expected, initial values.
using (WordprocessingDocument wordDocument = WordprocessingDocument.Open(stream, true))
{
AssertValuesAreAsExpected(wordDocument, initialValue);
}
// Update the WordprocessingDocument, using the updated value.
using (WordprocessingDocument wordDocument = WordprocessingDocument.Open(stream, true))
{
MainDocumentPart mainDocumentPart = wordDocument.MainDocumentPart;
// Change custom XML element, again using the simplifying assumption
// that we only have a single custom XML part and a single ex:Node
// element.
CustomXmlPart customXmlPart = mainDocumentPart.CustomXmlParts.Single();
XElement root = customXmlPart.GetXElement();
XElement node = root.Elements(Ns + "Node").Single();
node.Value = updatedValue;
customXmlPart.PutXDocument();
// Change the w:sdt contained in the MainDocumentPart.
XElement document = mainDocumentPart.GetXElement();
XElement sdt = FindSdtWithTag("Node", document);
sdtContent = sdt.Elements(W.sdtContent).Single();
sdtContent.ReplaceAll(
new XElement(W.p,
new XElement(W.r,
new XElement(W.t, updatedValue))));
mainDocumentPart.PutXDocument();
}
// Assert the WordprocessingDocument has the expected, updated values.
using (WordprocessingDocument wordDocument = WordprocessingDocument.Open(stream, true))
{
AssertValuesAreAsExpected(wordDocument, updatedValue);
}
}
