//
// Summary:
// When overridden in a derived class, writes the specified start tag and associates
// it with the given namespace and prefix.
//
// Parameters:
// localName:
// The local name of the element.
//
// prefix:
// The namespace prefix of the element.
//
// ns:
// The namespace URI to associate with the element.
//
// Exceptions:
// System.InvalidOperationException:
// The writer is closed.
public string WriteStartElement(string prefix, string localName, string ns)
{
if (_WriteState == WriteState.Attribute)
throw new InvalidOperationException("writer is closed");
if (prefix == "xmlns")
throw new ArgumentException("Prefix \"xmlns\" is reserved for use by XML.");
if (localName == null || localName.Length == 0)
throw new ArgumentException("The empty string '' is not a valid local name.");
// Check to see if a started attribute need finished
if (_WriteState == WriteState.Attribute)
this.WriteEndAttribute();
string localPrefix = "";
string localNS = "";
string childPrefix = "";
if(prefix != null && prefix.Length == 0) prefix = null;
// if prefix == null and ns == null, only localName will write
// if prefix == null and ns != null, prefix is set to xmlns and ns will be writen
// if prefix != null && ns == null, use prefix
if (prefix != null && ns != null)
{
localPrefix = prefix + ":";
localNS = " xmlns:" + prefix + "=" + "\"" + ns + "\"";
childPrefix = prefix;
}
else if (prefix != null && ns == null)
localPrefix = prefix + ":";
else if (prefix == null && ns != null)
{
if (_ElementStack.Count > 0)
{
if(((ElementInfo)_ElementStack.Peek()).NameSpaceName != ns)
{
childPrefix = "b" + _autoPrefixIndex++;
localNS = " xmlns:" + childPrefix + "=" + "\"" + ns + "\"";
}
else
{
prefix = ((ElementInfo)_ElementStack.Peek()).ChildNSPrefix;
if(prefix != null && prefix != "")
{
localPrefix = prefix + ":";
childPrefix = prefix;
}
}
}
else
{
localNS = " xmlns" + "=" + "\"" + ns + "\"";
}
}
else if(_ElementStack.Count > 0)
{
prefix = ((ElementInfo)_ElementStack.Peek()).ChildNSPrefix;
if(prefix != null && prefix != "")
{
localPrefix = prefix + ":";
}
else
{
prefix = null;
}
}
// Check to see if we need to close a previous start tag
if (_ElementStack.Count > 0)
if (((ElementInfo)_ElementStack.Peek()).State == WriteState.Element)
this.WriteRaw(">");
// Write the element
this.WriteRaw("<" + localPrefix + localName + localNS);
// Create a new Element and Push the element onto the ElementStack
ElementInfo currentElement = new ElementInfo();
currentElement.Name = localName;
currentElement.NSPrefix = prefix;
currentElement.ChildNSPrefix = childPrefix;
currentElement.NameSpaceName = ns;
currentElement.IsEmpty = true;
// Anytime a new Element is added the previous must have its last known state and IsEmpty
// state updated to reflect we are adding Content and the element is no longer Empty
if (_ElementStack.Count > 0)
{
ElementInfo ei = (ElementInfo)_ElementStack.Pop();
ei.State = _WriteState = WriteState.Content;
// Signal that this element has content
ei.IsEmpty = false;
_ElementStack.Push(ei);
}
// Update the local WriteState and new Element State
currentElement.State = _WriteState = WriteState.Element;
// Push the new element onto the stack
_ElementStack.Push(currentElement);
return prefix;
}
public void Push(ElementInfo element)
{
_ElementList.Insert(0, (ElementInfo)element);
}
public ElementInfo Pop()
{
if (_ElementList.Count == 0)
throw new ArgumentException("Token EndElement in state EndRootElement would result in an invalid XML document.");
ElementInfo tempElement = new ElementInfo();
tempElement = (ElementInfo)_ElementList[0];
_ElementList.RemoveAt(0);
return tempElement;
}
//
// Summary:
// When overridden in a derived class, writes the specified start tag and associates
// it with the given namespace and prefix.
//
// Parameters:
// localName:
// The local name of the element.
//
// prefix:
// The namespace prefix of the element.
//
// ns:
// The namespace URI to associate with the element.
//
// Exceptions:
// System.InvalidOperationException:
// The writer is closed.
public void WriteStartElement(string prefix, string localName, string ns)
{
if (_WriteState == WriteState.Attribute)
{
throw new InvalidOperationException("writer is closed");
}
if (prefix == "xmlns")
{
throw new ArgumentException("Prefix \"xmlns\" is reserved for use by XML.");
}
if (localName == null || localName.Length == 0)
{
throw new ArgumentException("The empty string '' is not a valid local name.");
}
// Check to see if a started attribute need finished
if (_WriteState == WriteState.Attribute)
{
this.WriteEndAttribute();
}
string localPrefix = "";
string localNS = "";
string childPrefix = "";
// if prefix == null and ns == null, only localName will write
// if prefix == null and ns != null, prefix is set to xmlns and ns will be writen
// if prefix != null && ns == null, use prefix
if (prefix != null && ns != null)
{
localPrefix = prefix + ":";
localNS = " xmlns:" + prefix + "=" + "\"" + ns + "\"";
childPrefix = prefix;
}
else if (prefix != null && ns == null)
{
localPrefix = prefix + ":";
}
else if (prefix == null && ns != null)
{
if (_ElementStack.Count > 0)
{
if (((ElementInfo)_ElementStack[0]).NameSpaceName != ns)
{
childPrefix = "b" + _autoPrefixIndex++;
localNS = " xmlns:" + childPrefix + "=" + "\"" + ns + "\"";
}
else
{
prefix = ((ElementInfo)_ElementStack[0]).ChildNSPrefix;
if (prefix != null && prefix != "")
{
localPrefix = prefix + ":";
}
}
}
else
{
localNS = " xmlns" + "=" + "\"" + ns + "\"";
}
}
else if (_ElementStack.Count > 0)
{
prefix = ((ElementInfo)_ElementStack[0]).ChildNSPrefix;
if (prefix != null && prefix != "")
{
localPrefix = prefix + ":";
}
}
// Check to see if we need to close a previous start tag
if (_ElementStack.Count > 0)
{
if (_ElementStack[0].State == WriteState.Element)
{
this.WriteRaw(">");
}
}
// Write the element
this.WriteRaw("<" + localPrefix + localName + localNS);
// Create a new Element and Push the element onto the ElementStack
ElementInfo currentElement = new ElementInfo();
currentElement.Name = localName;
currentElement.NSPrefix = prefix;
currentElement.ChildNSPrefix = childPrefix;
currentElement.NameSpaceName = ns;
currentElement.IsEmpty = true;
// Anytime a new Element is added the previous must have its last known state and IsEmpty
// state updated to reflect we are adding Content and the element is no longer Empty
if (_ElementStack.Count > 0)
{
_ElementStack[0].IsEmpty = false;
_ElementStack[0].State = WriteState.Content;
}
// Update the local WriteState and new Element State
currentElement.State = _WriteState = WriteState.Element;
// Push the new element onto the stack
_ElementStack.Push(currentElement);
}
public void Push(ElementInfo element)
{
_ElementList.Insert(0, (ElementInfo)element);
}