private object GetObjectFromFormatter(XElement element)
{
var formatterAttrib = element.Attribute(XmlConstants.FORMATTER);
if (formatterAttrib == null)
{
return(null);
}
var valueAttrib = element.Attribute(XmlConstants.VALUE);
if (valueAttrib == null)
{
throw new XmlException("Missing value attribute for formattable element " + GetFullPath(element));
}
var formatterType = _typeCache[formatterAttrib.Value];
SerializationFormatter formatter = (SerializationFormatter)formatterType.GetConstructor(Type.EmptyTypes).Invoke(Type.EmptyTypes);
return(formatter.FromString(XmlHelper.UnEscapeInvalidCharacters(valueAttrib.Value)));
}
/// <summary>
/// Creates and populates an object from the given XML element.
/// </summary>
/// <param name="element">The element containing the object description</param>
/// <param name="parent">The parent.</param>
/// <returns>
/// A populated object specified by the given XML element.
/// </returns>
private object ReadObject(XElement element, object parent)
{
// See if this element is an object reference
var refElement = element.Attribute(XmlConstants.REF);
if (refElement != null)
{
return(_references[refElement.Value]);
}
object result = GetObjectFromFormatter(element);
if (result != null)
{
return(result);
}
Type type = GetType(element);
string value = GetValue(element);
if (type == null)
{
// must be a plugin
throw new ArgumentNullException("Couldn't find the assembly that contains the type that was serialized into that element");
}
else if (type.IsPrimitive)
{
result = value != "NaN" ? Convert.ChangeType(value, type, CultureInfo.InvariantCulture) : Convert.ChangeType(Double.NaN, type);
}
else if (type.IsEnum)
{
result = Enum.Parse(type, value);
}
else if (type.Equals(typeof(string)))
{
result = XmlHelper.UnEscapeInvalidCharacters(value);
}
else if (type == typeof(DateTime))
{
result = Convert.ToDateTime(value);
}
else if (type.Equals(typeof(Color)))
{
result = ColorTranslator.FromHtml(value);
}
else if (type.Equals(typeof(PointF)))
{
string[] vals = XmlHelper.UnEscapeInvalidCharacters(value).Split('|');
result = new PointF(float.Parse(vals[0]), float.Parse(vals[1]));
}
else
{
if (parent == null)
{
result = ConstructObject(type, element);
}
else
{
result = parent;
}
FillObject(element, result, false);
}
return(result);
}
/// <summary>
/// Creates and populates an object from the given XML element.
/// </summary>
/// <param name="element">The element containing the object description</param>
/// <param name="parent">The parent.</param>
/// <returns>
/// A populated object specified by the given XML element.
/// </returns>
private object ReadObject(XElement element, object parent)
{
// See if this element is an object reference
var refElement = element.Attribute(XmlConstants.Ref);
if (refElement != null)
{
return(_references[refElement.Value]);
}
object result = GetObjectFromFormatter(element);
if (result != null)
{
return(result);
}
Type type = GetType(element);
string value = GetValue(element);
if (type == null)
{
// must be a plugin
throw new FileNotFoundException("Couldn't find the assembly that contains the type that was serialized into that element.");
}
if (type.IsPrimitive)
{
result = value != "NaN" ? Convert.ChangeType(value, type, CultureInfo.InvariantCulture) : Convert.ChangeType(double.NaN, type);
}
else if (type.IsEnum)
{
result = Enum.Parse(type, value);
}
else if (type == typeof(string))
{
result = XmlHelper.UnEscapeInvalidCharacters(value);
}
else if (type == typeof(DateTime))
{
result = Convert.ToDateTime(value, CultureInfo.InvariantCulture);
}
else if (type == typeof(Color))
{
result = ColorTranslator.FromHtml(value);
}
else if (type == typeof(PointF))
{
string[] vals = XmlHelper.UnEscapeInvalidCharacters(value).Split('|');
result = new PointF(float.Parse(vals[0]), float.Parse(vals[1]));
}
else
{
if (parent == null)
{
try
{
result = ConstructObject(type, element);
}
catch
{
// If a project file (such as a layer) is missing, this exception is thrown.
// We still want to be able to open the project; setting result to null seems to make this work.
result = null;
}
}
else
{
result = parent;
}
if (result != null)
{
FillObject(element, result, false);
}
}
return(result);
}