DataModelExtension class
Office 2013 and later
Defines the DataModelExtension Class. When the object is serialized out as xml, its qualified name is a:ext.
System.Object
DocumentFormat.OpenXml.OpenXmlElement
DocumentFormat.OpenXml.OpenXmlCompositeElement
DocumentFormat.OpenXml.Drawing.DataModelExtension
DocumentFormat.OpenXml.OpenXmlElement
DocumentFormat.OpenXml.OpenXmlCompositeElement
DocumentFormat.OpenXml.Drawing.DataModelExtension
Namespace: DocumentFormat.OpenXml.Drawing
Assembly: DocumentFormat.OpenXml (in DocumentFormat.OpenXml.dll)
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