/// <summary>
/// Method to initialize page content asynchronously.
/// </summary>
public override async void InitializeModel()
{
Model = new PageAlbumModel(this);
AlbumEntity album = null;
if (ItemId > 0)
{
AlbumOptionsSelect options = new AlbumOptionsSelect
{
Dependencies = { EnumEntitiesDependencies.All },
PrimaryKey = ItemId
};
album = await PageAlbumModel.Db.Albums.SingleOrNullAsync(options);
}
Model.AlbumEntity = album ?? new AlbumEntity();
/*UcDataGridSections.OnAdd += SectionsDataGrid_OnAdd;
* UcDataGridSections.OnChange += SectionsDataGrid_OnChange;
* UcDataGridSections.OnCancel += SectionsDataGrid_OnCancel;*/
// Add picture add handler.
PicturesCollection.Added -= PicturesCollection_Added;
PicturesCollection.Added += PicturesCollection_Added;
// Add picture delete handler.
PicturesCollection.Deleted -= PicturesCollection_Deleted;
PicturesCollection.Deleted += PicturesCollection_Deleted;
}
/// <summary>
/// Method to get a single <see cref="AlbumEntity"/>.
/// </summary>
/// <param name="op"><see cref="AlbumOptionsSelect"/> filters options for the query.</param>
/// <returns>An <see cref="AlbumEntity"/> or null.</returns>
public AlbumEntity SingleOrNull(AlbumOptionsSelect op)
{
if (op == null)
{
ArgumentNullException e = new ArgumentNullException(nameof(op));
log.Error(e.Output(), e);
throw e;
}
using (Db.Context)
{
return(AlbumManager.Select(op));
}
}
/// <summary> /// Method to get a single <see cref="AlbumEntity"/> asynchronously. /// </summary> /// <param name="op"><see cref="AlbumOptionsSelect"/> filters options for the query.</param> /// <returns>An <see cref="AlbumEntity"/> or null.</returns> public Task <AlbumEntity> SingleOrNullAsync(AlbumOptionsSelect op) => Task.Run(() => SingleOrNull(op));
/// <summary> /// Method to get a single <see cref="AlbumEntity"/>. /// </summary> /// <param name="op"><see cref="AlbumOptionsSelect"/> filters options for the query.</param> /// <returns>An <see cref="AlbumEntity"/> or a dafault entity.</returns> public Task <AlbumEntity> SingleOrDefaultAsync(AlbumOptionsSelect op) => Task.Run(() => SingleOrDefault(op));