internal DataPointer( DataPointer pointer ) {
this.doc = pointer.doc;
this.node = pointer.node;
this.column = pointer.column;
this.fOnValue = pointer.fOnValue;
this.bNeedFoliate = false;
this._isInUse = true;
AssertValid();
}
internal DataPointer(DataPointer pointer)
{
_doc = pointer._doc;
_node = pointer._node;
_column = pointer._column;
_fOnValue = pointer._fOnValue;
_bNeedFoliate = false;
_isInUse = true;
AssertValid();
}
internal void MoveTo( DataPointer pointer ) {
AssertValid();
// You should not move outside of this document
Debug.Assert( node == this.doc || node.OwnerDocument == this.doc );
this.doc = pointer.doc;
this.node = pointer.node;
this.column = pointer.column;
this.fOnValue = pointer.fOnValue;
AssertValid();
}
internal void MoveTo(DataPointer pointer)
{
AssertValid();
// You should not move outside of this document
Debug.Assert(_node == _doc || _node.OwnerDocument == _doc);
_doc = pointer._doc;
_node = pointer._node;
_column = pointer._column;
_fOnValue = pointer._fOnValue;
AssertValid();
}
private static void WriteTo(DataPointer dp, XmlWriter w)
{
switch (dp.NodeType)
{
case XmlNodeType.Attribute:
if (!dp.IsDefault)
{
w.WriteStartAttribute(dp.Prefix, dp.LocalName, dp.NamespaceURI);
if (dp.MoveToFirstChild())
{
do
{
WriteTo(dp, w);
}while (dp.MoveToNextSibling());
dp.MoveToParent();
}
w.WriteEndAttribute();
}
break;
case XmlNodeType.Element:
WriteBoundElementTo(dp, w);
break;
case XmlNodeType.Text:
w.WriteString(dp.Value);
break;
default:
Debug.Assert(((IXmlDataVirtualNode)dp).IsOnColumn(null));
if (dp.GetNode() != null)
{
dp.GetNode().WriteTo(w);
}
break;
}
}
private static void WriteBoundElementTo(DataPointer dp, XmlWriter w)
{
w.WriteStartElement(dp.Prefix, dp.LocalName, dp.NamespaceURI);
int attributeCount = dp.AttributeCount;
if (attributeCount > 0)
{
for (int i = 0; i < attributeCount; i++)
{
dp.MoveToAttribute(i);
WriteTo(dp, w);
dp.MoveToOwnerElement();
}
}
WriteBoundElementContentTo(dp, w);
if (dp.IsEmptyElement)
{
w.WriteEndElement();
}
else
{
w.WriteFullEndElement();
}
}
private XmlNode CloneNode(DataPointer dp)
{
switch (dp.NodeType)
{
//for the nodes without value and have no children
case XmlNodeType.DocumentFragment:
return CreateDocumentFragment();
case XmlNodeType.DocumentType:
return CreateDocumentType(dp.Name, dp.PublicId, dp.SystemId, dp.InternalSubset);
case XmlNodeType.XmlDeclaration:
return CreateXmlDeclaration(dp.Version, dp.Encoding, dp.Standalone);
//for the nodes with value but no children
case XmlNodeType.Text:
return CreateTextNode(dp.Value);
case XmlNodeType.CDATA:
return CreateCDataSection(dp.Value);
case XmlNodeType.ProcessingInstruction:
return CreateProcessingInstruction(dp.Name, dp.Value);
case XmlNodeType.Comment:
return CreateComment(dp.Value);
case XmlNodeType.Whitespace:
return CreateWhitespace(dp.Value);
case XmlNodeType.SignificantWhitespace:
return CreateSignificantWhitespace(dp.Value);
//for the nodes that don't have values, but might have children -- only clone the node and leave the children untouched
case XmlNodeType.Element:
return CreateElement(dp.Prefix, dp.LocalName, dp.NamespaceURI);
case XmlNodeType.Attribute:
return CreateAttribute(dp.Prefix, dp.LocalName, dp.NamespaceURI);
case XmlNodeType.EntityReference:
return CreateEntityReference(dp.Name);
}
throw new InvalidOperationException(SR.Format(SR.DataDom_CloneNode, dp.NodeType.ToString()));
}
public override XmlNode CloneNode(bool deep)
{
XmlDataDocument clone = (XmlDataDocument)(base.CloneNode(false));
clone.Init(DataSet.Clone());
clone._dataSet.EnforceConstraints = _dataSet.EnforceConstraints;
Debug.Assert(clone.FirstChild == null);
if (deep)
{
DataPointer dp = new DataPointer(this, this);
try
{
dp.AddPointer();
for (bool fMore = dp.MoveToFirstChild(); fMore; fMore = dp.MoveToNextSibling())
{
XmlNode cloneNode;
if (dp.NodeType == XmlNodeType.Element)
cloneNode = clone.CloneTree(dp);
else
cloneNode = clone.CloneNode(dp);
clone.AppendChild(cloneNode);
}
}
finally
{
dp.SetNoLongerUse();
}
}
return clone;
}
private static void WriteTo( DataPointer dp, XmlWriter w ) {
switch ( dp.NodeType ) {
case XmlNodeType.Attribute:
if ( !dp.IsDefault ) {
w.WriteStartAttribute( dp.Prefix, dp.LocalName, dp.NamespaceURI );
if ( dp.MoveToFirstChild() ) {
do {
WriteTo( dp, w );
}
while ( dp.MoveToNextSibling() );
dp.MoveToParent();
}
w.WriteEndAttribute();
}
break;
case XmlNodeType.Element:
WriteBoundElementTo( dp, w );
break;
case XmlNodeType.Text:
w.WriteString(dp.Value);
break;
default:
Debug.Assert( ((IXmlDataVirtualNode)dp).IsOnColumn( null ) );
if ( dp.GetNode() != null )
dp.GetNode().WriteTo( w );
break;
}
}
private static void WriteBoundElementContentTo( DataPointer dp, XmlWriter w ) {
if ( !dp.IsEmptyElement && dp.MoveToFirstChild() ) {
do {
WriteTo( dp, w );
}
while ( dp.MoveToNextSibling() );
dp.MoveToParent();
}
}
private static void WriteBoundElementTo( DataPointer dp, XmlWriter w ) {
Debug.Assert( dp.NodeType == XmlNodeType.Element );
w.WriteStartElement( dp.Prefix, dp.LocalName, dp.NamespaceURI );
int cAttr = dp.AttributeCount;
if ( cAttr > 0 ) {
for ( int iAttr = 0; iAttr < cAttr; iAttr++ ) {
dp.MoveToAttribute( iAttr );
WriteTo( dp, w );
dp.MoveToOwnerElement();
}
}
WriteBoundElementContentTo( dp, w );
// Force long end tag when the elem is not empty, even if there are no children.
if ( dp.IsEmptyElement )
w.WriteEndElement();
else
w.WriteFullEndElement();
}
private void WriteRootBoundElementTo(DataPointer dp, XmlWriter w)
{
XmlDataDocument ownerDocument = (XmlDataDocument) this.OwnerDocument;
w.WriteStartElement(dp.Prefix, dp.LocalName, dp.NamespaceURI);
int attributeCount = dp.AttributeCount;
bool flag = false;
if (attributeCount > 0)
{
for (int i = 0; i < attributeCount; i++)
{
dp.MoveToAttribute(i);
if ((dp.Prefix == "xmlns") && (dp.LocalName == "xsi"))
{
flag = true;
}
WriteTo(dp, w);
dp.MoveToOwnerElement();
}
}
if ((!flag && ownerDocument.bLoadFromDataSet) && ownerDocument.bHasXSINIL)
{
w.WriteAttributeString("xmlns", "xsi", "http://www.w3.org/2000/xmlns/", "http://www.w3.org/2001/XMLSchema-instance");
}
WriteBoundElementContentTo(dp, w);
if (dp.IsEmptyElement)
{
w.WriteEndElement();
}
else
{
w.WriteFullEndElement();
}
}
internal void MoveTo(DataPointer pointer)
{
this.doc = pointer.doc;
this.node = pointer.node;
this.column = pointer.column;
this.fOnValue = pointer.fOnValue;
}
public override void WriteTo(XmlWriter w)
{
DataPointer dp = new DataPointer((XmlDataDocument)OwnerDocument, this);
WriteRootBoundElementTo(dp, w);
}
private static void WriteTo(DataPointer dp, XmlWriter w)
{
switch (dp.NodeType)
{
case XmlNodeType.Element:
WriteBoundElementTo(dp, w);
return;
case XmlNodeType.Attribute:
if (dp.IsDefault)
{
break;
}
w.WriteStartAttribute(dp.Prefix, dp.LocalName, dp.NamespaceURI);
if (dp.MoveToFirstChild())
{
do
{
WriteTo(dp, w);
}
while (dp.MoveToNextSibling());
dp.MoveToParent();
}
w.WriteEndAttribute();
return;
case XmlNodeType.Text:
w.WriteString(dp.Value);
return;
default:
if (dp.GetNode() != null)
{
dp.GetNode().WriteTo(w);
}
break;
}
}
// This creates a tree and synchronize ROM w/ the created tree.
// It requires the populated mode to be on - in case we are not in populated mode, it will make the XmlDataDocument be in populated mode.
// It takes advantage of the fAssociateDataRow flag for populated mode, which allows creation of XmlBoundElement w/o associating DataRow objects.
internal XmlNode CloneTree(DataPointer other)
{
EnsurePopulatedMode();
bool oldIgnoreDataSetEvents = _ignoreDataSetEvents;
bool oldIgnoreXmlEvents = _ignoreXmlEvents;
bool oldFoliationEnabled = IsFoliationEnabled;
bool oldAssociateDataRow = _fAssociateDataRow;
// Caller should ensure that the EnforceConstraints == false. See 60486 for more info about why this was changed from DataSet.EnforceConstraints = false to an assert.
Debug.Assert(DataSet.EnforceConstraints == false);
XmlNode newNode;
try
{
_ignoreDataSetEvents = true;
_ignoreXmlEvents = true;
IsFoliationEnabled = false;
_fAssociateDataRow = false;
// Create the diconnected tree based on the other navigator
newNode = CloneTreeInternal(other);
Debug.Assert(newNode != null);
// Synchronize DataSet from XML
LoadRows(null, newNode);
SyncRows(null, newNode, false);
}
finally
{
_ignoreDataSetEvents = oldIgnoreDataSetEvents;
_ignoreXmlEvents = oldIgnoreXmlEvents;
IsFoliationEnabled = oldFoliationEnabled;
_fAssociateDataRow = oldAssociateDataRow;
}
return newNode;
}
private XmlNode CloneTreeInternal(DataPointer other)
{
Debug.Assert(_ignoreDataSetEvents == true);
Debug.Assert(_ignoreXmlEvents == true);
Debug.Assert(IsFoliationEnabled == false);
// Create the diconnected tree based on the other navigator
XmlNode newNode = CloneNode(other);
DataPointer dp = new DataPointer(other);
try
{
dp.AddPointer();
if (newNode.NodeType == XmlNodeType.Element)
{
int cAttributes = dp.AttributeCount;
for (int i = 0; i < cAttributes; i++)
{
dp.MoveToOwnerElement();
if (dp.MoveToAttribute(i))
{
newNode.Attributes.Append((XmlAttribute)CloneTreeInternal(dp));
}
}
dp.MoveTo(other);
}
for (bool fMore = dp.MoveToFirstChild(); fMore; fMore = dp.MoveToNextSibling())
newNode.AppendChild(CloneTreeInternal(dp));
}
finally
{
dp.SetNoLongerUse();
}
return newNode;
}
public override void WriteTo( XmlWriter w ) {
DataPointer dp = new DataPointer( (XmlDataDocument)OwnerDocument, this );
try {
dp.AddPointer();
WriteRootBoundElementTo( dp, w );
}
finally {
dp.SetNoLongerUse();
}
}
private void WriteRootBoundElementTo(DataPointer dp, XmlWriter w) {
Debug.Assert( dp.NodeType == XmlNodeType.Element );
XmlDataDocument doc = (XmlDataDocument)OwnerDocument;
w.WriteStartElement( dp.Prefix, dp.LocalName, dp.NamespaceURI );
int cAttr = dp.AttributeCount;
bool bHasXSI = false;
if ( cAttr > 0 ) {
for ( int iAttr = 0; iAttr < cAttr; iAttr++ ) {
dp.MoveToAttribute( iAttr );
if ( dp.Prefix == "xmlns" && dp.LocalName == XmlDataDocument.XSI )
bHasXSI = true;
WriteTo( dp, w );
dp.MoveToOwnerElement();
}
}
if ( !bHasXSI && doc.bLoadFromDataSet && doc.bHasXSINIL )
w.WriteAttributeString( "xmlns", "xsi", "http://www.w3.org/2000/xmlns/", Keywords.XSINS );
WriteBoundElementContentTo( dp, w );
// Force long end tag when the elem is not empty, even if there are no children.
if ( dp.IsEmptyElement )
w.WriteEndElement();
else
w.WriteFullEndElement();
}
private static void WriteBoundElementTo(DataPointer dp, XmlWriter w)
{
w.WriteStartElement(dp.Prefix, dp.LocalName, dp.NamespaceURI);
int attributeCount = dp.AttributeCount;
if (attributeCount > 0)
{
for (int i = 0; i < attributeCount; i++)
{
dp.MoveToAttribute(i);
WriteTo(dp, w);
dp.MoveToOwnerElement();
}
}
WriteBoundElementContentTo(dp, w);
if (dp.IsEmptyElement)
{
w.WriteEndElement();
}
else
{
w.WriteFullEndElement();
}
}
