/// <summary>
/// removes child from list
/// </summary>
/// <param name="child"></param>
public void deleteChild(Child child)
{
XElement childElement = (from n in DataSourceXml.Children.Elements()
where Convert.ToInt32(n.Element("id").Value) == child.id
select n).FirstOrDefault();
if (childElement != null)
{
childElement.Remove();
DataSourceXml.SaveChildren();
}
else
{
throw new Exception("child is not in the system\n");
}
}
/// <summary>
/// updates child info
/// </summary>
/// <param name="child"></param>
public void updateChild(Child child)
{
XElement childElement = (from c in DataSourceXml.Children.Elements()
where Convert.ToInt32(c.Element("id").Value) == child.id
select c).FirstOrDefault();
if (childElement != null)
{
childElement.ReplaceWith(child.toXML());
DataSourceXml.SaveChildren();
}
else
{
throw new Exception("the child is not in the system.\n");
}
}
/// <summary>
/// adds child to list
/// </summary>
/// <param name="child"></param>
public void addChild(Child child)
{
var temp = (from c in DataSourceXml.Children.Elements()
where Convert.ToInt32(c.Element("id").Value) == child.id
select c).FirstOrDefault();
if (temp == null)
{
DataSourceXml.Children.Add(child.toXML());
DataSourceXml.SaveChildren();
}
else
{
throw new Exception("you are trying to add a existing child.\n");
}
}