public void AddField(ContractFormField newFiled)
{
Fields.Add(newFiled);
migrator.Notify(
() => Fields,
() => Fields.Add(newFiled),
() => Fields.Remove(newFiled), MigratorMode.EveryChange);
}
public void RemoveField(ContractFormField removeField)
{
var position = Fields.IndexOf(removeField);
Fields.Remove(removeField);
migrator.Notify(
() => Fields,
() => Fields.Remove(removeField),
() => Fields.Insert(position, removeField), MigratorMode.EveryChange);
}