private void DocumentManagementForm_Closing(object sender, FormClosingEventArgs e)
{
DialogResult dlg = MessageBox.Show("Save changes?", "Document Management System", MessageBoxButtons.YesNo);
if (dlg == DialogResult.Yes)
{
string type = ConfigurationManager.AppSettings["PersistingType"];
switch (type)
{
case "1":
DataStorage ds = DataStorage.GetInstance();
ds.UpdateCollections();
ds.PersistDataChanges();
break;
case "2":
break;
case "3":
SerializationDataStorage sds = SerializationDataStorage.GetInstance();
sds.PersistData();
break;
}
e.Cancel = false;
}
if (dlg == DialogResult.No)
{
e.Cancel = false;
}
}
public static SerializationDataStorage GetInstance()
{
if (storage == null)
{
storage = new SerializationDataStorage();
}
return(storage);
}
