private async Task<bool> RemoveDocument2Async(Document doc)
{
if (doc != null && doc.ParentId == Id)
{
await DBManager.DeleteFromDocumentsAsync(doc);
int countBefore = _documents.Count;
await RunInUiThreadAsync(delegate { _documents.Remove(doc); }).ConfigureAwait(false);
await doc.OpenAsync().ConfigureAwait(false);
await doc.RemoveContentAsync().ConfigureAwait(false);
await doc.CloseAsync().ConfigureAwait(false);
doc.Dispose();
return _documents.Count < countBefore || _documents.Count == 0;
}
return false;
}
private async Task<bool> AddDocument2Async(Document doc)
{
if (doc != null)
{
if (Document.Check(doc))
{
var dbM = DBManager;
if (dbM != null && await dbM.InsertIntoDocumentsAsync(doc))
{
await RunInUiThreadAsync(delegate { _documents.Add(doc); }).ConfigureAwait(false);
await doc.OpenAsync().ConfigureAwait(false);
return true;
}
}
}
return false;
}