private void WriteXmlStartTagsForPackageProperties()
{
_xmlWriter.WriteStartDocument();
// <coreProperties
_xmlWriter.WriteStartElement(PackageXmlStringTable.GetXmlString(PackageXmlEnum.CoreProperties), // local name
PackageXmlStringTable.GetXmlString(PackageXmlEnum.PackageCorePropertiesNamespace)); // namespace
// xmlns:dc
_xmlWriter.WriteAttributeString(PackageXmlStringTable.GetXmlString(PackageXmlEnum.XmlNamespacePrefix),
PackageXmlStringTable.GetXmlString(PackageXmlEnum.DublinCorePropertiesNamespacePrefix),
null,
PackageXmlStringTable.GetXmlString(PackageXmlEnum.DublinCorePropertiesNamespace));
// xmlns:dcterms
_xmlWriter.WriteAttributeString(PackageXmlStringTable.GetXmlString(PackageXmlEnum.XmlNamespacePrefix),
PackageXmlStringTable.GetXmlString(PackageXmlEnum.DublincCoreTermsNamespacePrefix),
null,
PackageXmlStringTable.GetXmlString(PackageXmlEnum.DublinCoreTermsNamespace));
// xmlns:xsi
_xmlWriter.WriteAttributeString(PackageXmlStringTable.GetXmlString(PackageXmlEnum.XmlNamespacePrefix),
PackageXmlStringTable.GetXmlString(PackageXmlEnum.XmlSchemaInstanceNamespacePrefix),
null,
PackageXmlStringTable.GetXmlString(PackageXmlEnum.XmlSchemaInstanceNamespace));
}
// This method validates xsi:type="dcterms:W3CDTF"
// The valude of xsi:type is a qualified name. It should have a prefix that matches
// the xml namespace (ns) within the scope and the name that matches name
// The comparisons should be case-sensitive comparisons
internal static void ValidateXsiType(XmlTextReader reader, Object ns, string name)
{
// Get the value of xsi;type
String typeValue = reader.GetAttribute(PackageXmlStringTable.GetXmlString(PackageXmlEnum.Type),
PackageXmlStringTable.GetXmlString(PackageXmlEnum.XmlSchemaInstanceNamespace));
// Missing xsi:type
if (typeValue == null)
{
throw new XmlException(SR.Get(SRID.UnknownDCDateTimeXsiType, reader.Name),
null, reader.LineNumber, reader.LinePosition);
}
int index = typeValue.IndexOf(':');
// The valude of xsi:type is not a qualified name
if (index == -1)
{
throw new XmlException(SR.Get(SRID.UnknownDCDateTimeXsiType, reader.Name),
null, reader.LineNumber, reader.LinePosition);
}
// Check the following conditions
// The namespace of the prefix (string before ":") matches "ns"
// The name (string after ":") matches "name"
if (!Object.ReferenceEquals(ns, reader.LookupNamespace(typeValue.Substring(0, index))) ||
String.CompareOrdinal(name, typeValue.Substring(index + 1, typeValue.Length - index - 1)) != 0)
{
throw new XmlException(SR.Get(SRID.UnknownDCDateTimeXsiType, reader.Name),
null, reader.LineNumber, reader.LinePosition);
}
}
// Write the property elements and clear _dirty.
private void SerializeDirtyProperties()
{
// In streaming mode, nullify dictionary values.
// As no property can be set to null through the API, this makes it possible to keep
// track of all properties that have been set since the CoreProperties object was created.
KeyValuePair <PackageXmlEnum, Object>[] entriesToNullify = null;
int numEntriesToNullify = 0;
if (_package.InStreamingCreation)
{
entriesToNullify = new KeyValuePair <PackageXmlEnum, Object> [_propertyDictionary.Count];
}
// Create a property element for each non-null entry.
foreach (KeyValuePair <PackageXmlEnum, Object> entry in _propertyDictionary)
{
// If we are NOT in streaming mode, the property value should NOT be null
Debug.Assert(entry.Value != null || _package.InStreamingCreation);
if (_package.InStreamingCreation &&
entry.Value == null) // already saved
{
continue;
}
PackageXmlEnum propertyNamespace = PackageXmlStringTable.GetXmlNamespace(entry.Key);
_xmlWriter.WriteStartElement(PackageXmlStringTable.GetXmlString(entry.Key),
PackageXmlStringTable.GetXmlString(propertyNamespace));
if (entry.Value is Nullable <DateTime> )
{
if (propertyNamespace == PackageXmlEnum.DublinCoreTermsNamespace)
{
// xsi:type=
_xmlWriter.WriteStartAttribute(PackageXmlStringTable.GetXmlString(PackageXmlEnum.Type),
PackageXmlStringTable.GetXmlString(PackageXmlEnum.XmlSchemaInstanceNamespace));
// "dcterms:W3CDTF"
_xmlWriter.WriteQualifiedName(_w3cdtf,
PackageXmlStringTable.GetXmlString(PackageXmlEnum.DublinCoreTermsNamespace));
_xmlWriter.WriteEndAttribute();
}
// Use sortable ISO 8601 date/time pattern. Include second fractions down to the 100-nanosecond interval,
// which is the definition of a "tick" for the DateTime type.
_xmlWriter.WriteString(XmlConvert.ToString(((Nullable <DateTime>)entry.Value).Value.ToUniversalTime(), "yyyy-MM-ddTHH:mm:ss.fffffffZ"));
}
else
{
// The following uses the fact that ToString is virtual.
_xmlWriter.WriteString(entry.Value.ToString());
}
_xmlWriter.WriteEndElement();
if (_package.InStreamingCreation)
{
entriesToNullify[numEntriesToNullify++] = entry;
}
}
// Mark properties as saved.
_dirty = false;
// Detailed marking of saved properties for the streaming mode.
if (_package.InStreamingCreation)
{
for (int i = 0; i < numEntriesToNullify; ++i)
{
_propertyDictionary[entriesToNullify[i].Key] = null;
}
}
}