DataChecksum

CustomXmlPart.DataChecksum property

Specifies a cyclic redundancy check (CRC) checksum of the Data content.

public long DataChecksum { get; }

Examples

Shows how the checksum is calculated in a runtime.

Document doc = new Document();

StructuredDocumentTag richText = new StructuredDocumentTag(doc, SdtType.RichText, MarkupLevel.Block);
doc.FirstSection.Body.AppendChild(richText);

// The checksum is read-only and computed using the data of the corresponding custom XML data part.
richText.XmlMapping.SetMapping(doc.CustomXmlParts.Add(Guid.NewGuid().ToString(),
    "<root><text>ContentControl</text></root>"), "/root/text", "");

long checksum = richText.XmlMapping.CustomXmlPart.DataChecksum;
Console.WriteLine(checksum);

richText.XmlMapping.SetMapping(doc.CustomXmlParts.Add(Guid.NewGuid().ToString(),
    "<root><text>Updated ContentControl</text></root>"), "/root/text", "");

long updatedChecksum = richText.XmlMapping.CustomXmlPart.DataChecksum;
Console.WriteLine(updatedChecksum);

// We changed the XmlPart of the tag, and the checksum was updated at runtime.
Assert.AreNotEqual(checksum, updatedChecksum);

See Also

CustomXmlPart.Data CustomXmlPart.Id