/// <summary>
/// Save metaBriefcase, in case there is a crash before the next Suspend.
/// LOLLO NOTE This is the only method that is not called by SettingsVM, which saves when closing.
/// </summary>
/// <param name="fldDsc"></param>
/// <param name="newFldVal"></param>
/// <param name="save"></param>
/// <returns></returns>
public async Task<FieldValue> AddPossibleValueToFieldDescriptionAsync(FieldDescription fldDsc, string newVaalue)
{
if (fldDsc == null || string.IsNullOrEmpty(newVaalue)) return null;
FieldValue newFldVal = null;
bool isAdded = false;
await RunFunctionIfOpenAsyncT(async delegate
{
if (fldDsc == null || string.IsNullOrEmpty(newVaalue)) return;
var recycledFldVal = _rubbishBin.GetPossibleValue2(fldDsc, newVaalue);
newFldVal = recycledFldVal?.Item2 ?? new FieldValue(newVaalue, true, true);
await RunInUiThreadAsync(() => isAdded = fldDsc.AddPossibleValue(newFldVal)).ConfigureAwait(false);
if (isAdded)
{
isAdded = await Save2Async().ConfigureAwait(false);
if (isAdded) _oneDriveReaderWriter.RaiseUpdateOneDriveMetaBriefcaseRequested();
}
}).ConfigureAwait(false);
if (isAdded) return newFldVal; else return null;
}
