private void DataModel_DataChanging(object sender, PropertyChangingEventArgs e)
{
if (!OriginalData.ContainsKey(e.PropertyName))
{
OriginalData[e.PropertyName] = this[e.PropertyName];
}
}
public List <string> GetDeltaFields()
{
return(Data.Where(x => !OriginalData.ContainsKey(x.Key) ||
!OriginalData[x.Key].Equals(x.Value)).Select(x => x.Key).ToList());
}
