/// <summary>
/// removes a nanny from DS
/// </summary>
/// <param name="nanny"></param>
public void deleteNanny(Nanny nanny)
{
XElement nannyElement = (from n in DataSourceXml.Nannys.Elements()
where Convert.ToInt32(n.Element("id").Value) == nanny.id
select n).FirstOrDefault();
if (nannyElement != null)
{
nannyElement.Remove();
DataSourceXml.SaveNannys();
}
else
{
throw new Exception("nanny is not in list\n");
}
}
/// <summary>
/// gets a nanny from UI and updates the information in the DS
/// </summary>
/// <param name="nanny"></param>
public void updateNanny(Nanny nanny)
{
XElement nannyElement = (from n in DS.DataSourceXml.Nannys.Elements()
where Convert.ToInt32(n.Element("id").Value) == nanny.id
select n).FirstOrDefault();
if (nannyElement != null)
{
nannyElement.ReplaceWith(nanny.toXML());
DataSourceXml.SaveNannys();
}
else
{
throw new Exception("the nanny is not in the system.\n");
}
}
/// <summary>
/// checks if nanny exists in DS and then adds to DS
/// </summary>
/// <param name="nanny"></param>
public void addNanny(Nanny nanny)
{
var temp = (from n in DataSourceXml.Nannys.Elements()
where Convert.ToInt32(n.Element("id").Value) == nanny.id
select n).FirstOrDefault();
if (temp == null)
{
DataSourceXml.Nannys.Add(nanny.toXML());
DataSourceXml.SaveNannys();
}
else
{
throw new Exception("nanny already in list\n");
}
}