protected void SetXmlAttributeProcessingIndex(string attributeName, int positionIndex)
{
if (!_AttributeInfoCollection.Contains(attributeName))
{
throw new Exception("Cannot change the processing index for attribute \"" + attributeName + "\" because no such attribute has been registered.");
}
QXAttributeInfo <T> ai = _AttributeInfoCollection[attributeName];
_AttributeInfoCollection.Remove(attributeName);
_AttributeInfoCollection.Insert(positionIndex, ai);
}
protected void ReadXmlAttributes(T owner, XmlReader reader)
{
reader.MoveToElement();
HashSet <string> encounteredAttributes = new HashSet <string>();
int attributeCount = reader.AttributeCount;
for (int i = 0; i < attributeCount; i++)
{
reader.MoveToAttribute(i);
string attributeName = reader.Name;
string attributeValue = reader.Value;
if (!_AttributeInfoCollection.Contains(attributeName))
{
if (!this.IgnoreUnregisteredAttributes)
{
throw new Exception("Unregistered attribute \"" + attributeName + "\" encountered while reading attribues.");
}
else
{
continue;
}
}
QXAttributeInfo <T> attributeInfo = this.GetAttributeInfo(attributeName);
if (attributeInfo.ProcessingMode == QXProcessingMode.Ignore)
{
continue;
}
// Process the attribute value
attributeInfo.Decoder(owner, attributeValue);
encounteredAttributes.Add(attributeName);
}
foreach (QXAttributeInfo <T> ai in _AttributeInfoCollection)
{
if (ai.ProcessingMode == QXProcessingMode.Required && !encounteredAttributes.Contains(ai.AttributeName))
{
throw new Exception("Required attribute \"" + ai.AttributeName + "\" not present.");
}
}
}
protected override string GetKeyForItem(QXAttributeInfo <T> item) => item.AttributeName;