public bool SaveTree(string fileName, GenTree tree)
{
XDocument xmlTree = new XDocument();
XElement root = new XElement("tree");
try
{
root.SetAttributeValue("name", tree.Name);
root.SetAttributeValue("createDate", tree.DateOfCreate.ToString());
root.SetAttributeValue("lastEditDate", tree.DateOfLastEdit.ToString());
root.SetAttributeValue("id", tree.ID);
root.SetAttributeValue("information", tree.Information);
XElement xPersons = new XElement("persons");
List<Person> persons = tree.Persons.GetPersonsList();
PersonToXml personToXml = new PersonToXml();
XElement xPerson;
foreach (Person person in persons)
{
if (personToXml.AddToElement(person, out xPerson))
{
xPersons.Add(xPerson);
}
else return false;
}
root.Add(xPersons);
XElement xTable = new XElement("table");
List<RelationBetweenTwoPerson> relations = tree.Relations.GetRelationList();
RelationToXml relationToXml = new RelationToXml();
XElement xRelation;
foreach(RelationBetweenTwoPerson relation in relations)
{
if (!relationToXml.AddToElement(relation, out xRelation))
{
return false;
}
else
xTable.Add(xRelation);
}
root.Add(xTable);
xmlTree.Add(root);
xmlTree.Save(fileName);
return true;
}
catch (Exception)
{
return false;
}
}
public bool OpenTree(string fileName, out GenTree tree,bool isReadInformationOnly=false)
{
try
{
if (File.Exists(fileName))
{
XmlTextReader xmlFile = new XmlTextReader(fileName);
XDocument xmlTree = XDocument.Load(xmlFile);
XElement root = xmlTree.Root;
string treename = root.Attribute("name").Value;
DateTime createTime = DateTime.Parse(root.Attribute("createDate").Value);
DateTime lastEditTime = DateTime.Parse(root.Attribute("lastEditDate").Value);
int id = Int32.Parse(root.Attribute("id").Value);
string information = root.Attribute("information").Value;
if (isReadInformationOnly)
{
tree = new GenTree(createTime, lastEditTime, treename, information, id,null, null);
return true;
}
List<Person> personList = new List<Person>();
Person somePerson;
PersonToXml readPerson = new PersonToXml();
foreach(XElement xmlPerson in root.Elements("persons").Elements())
{
if (readPerson.GetFromElement(xmlPerson, out somePerson))
{
personList.Add(somePerson);
}
else
{
tree = null;
return false;
}
}
PersonList.GetPersonList(personList);
List<RelationBetweenTwoPerson> relationList = new List<RelationBetweenTwoPerson>();
RelationBetweenTwoPerson relation;
RelationToXml readRelation = new RelationToXml();
foreach (XElement xmlRelation in root.Element("table").Elements())
{
if(readRelation.GetFromElement(xmlRelation,out relation))
{
relationList.Add(relation);
}
else
{
tree = null;
return false;
}
}
tree = new GenTree(createTime,lastEditTime,treename,information,id,personList,relationList);
return true;
}
else
{
throw new FileNotFoundException();
}
}
catch(Exception)
{
tree = null;
return false;
}
}
public bool SetCurrentTree(GenTree tree)
{
_currentTree = tree;
return true;
}
public bool SetCurrentTree(int index)
{
if (!isFromBase)
{
try
{
GenTree curTreeInfo = _listOfTreeInfo[index];
return (new TreeToXml().OpenTree(_treeCatalogName + "\\" + curTreeInfo.Name + ".xml", out _currentTree));
}
catch
{
_currentTree = null;
return false;
}
}
else
{
try
{
GenTree curTreeInfo = _listOfTreeInfo[index];
_currentTree = new TreeDB().OpenTree(curTreeInfo.ID, _builder);
return true;
}
catch
{
_currentTree = null;
return false;
}
}
}
public bool GetTreeInfoFromIndex(int index, out GenTree tree)
{
try
{
tree = _listOfTreeInfo[index];
return true;
}
catch (Exception)
{
tree = null;
return false;
}
}
public bool GetTreeFromID(int ID, out GenTree tree)
{
try
{
tree = _listOfTreeInfo.Single<GenTree>(x => x.ID == ID);
if (tree != null)
return true;
else
throw new FieldAccessException();
}
catch (Exception)
{
tree = null;
return false;
}
}