public void Initialize()
{
this._dds = new DomainDataSource();
this._dds.Loaded += new RoutedEventHandler(this.DomainDataSourceLoaded);
this._dds.LoadingData += new EventHandler <OpenRiaServices.Controls.LoadingDataEventArgs>(this.DomainDataSourceLoadingData);
this._dds.LoadedData += new EventHandler <LoadedDataEventArgs>(this.DomainDataSourceLoadedData);
this._dds.SubmittingChanges += new EventHandler <SubmittingChangesEventArgs>(this.DomainDataSourceSubmittingChanges);
this._dds.SubmittedChanges += new EventHandler <SubmittedChangesEventArgs>(this.DomainDataSourceSubmittedChanges);
this._view = this._dds.DataView;
this._view.PageChanged += this.ViewPageChanged;
this._collectionView = this._view;
this._collectionView.CollectionChanged += this.ViewCollectionChanged;
this._editableCollectionView = this._view;
this._pagedCollectionView = this._view;
this._comboBox = new ComboBox {
Name = "_comboBox"
};
this._comboBox.Loaded += new RoutedEventHandler(this.ComboBoxLoaded);
this._textBox = new TextBox {
Name = "_textBox"
};
this._textBox.Loaded += new RoutedEventHandler(this.TextBoxLoaded);
this.ResetLoadState();
this.ResetPageChanged();
this.ResetSubmitState();
this._asyncEventFailureMessage = null;
}
/// <summary>
/// Updates the query by calling <see cref="SortBy{TEntity}(QueryBuilder{TEntity},ICollectionView)"/> and <see cref="PageBy{TEntity}(QueryBuilder{TEntity},IPagedCollectionView)"/> in sequence.
/// </summary>
/// <typeparam name="TEntity">The generic type of the entity</typeparam>
/// <param name="query">The query to update</param>
/// <param name="collectionView">The collection view to pass to each method</param>
/// <returns>An updated query</returns>
public static QueryBuilder <TEntity> SortAndPageBy <TEntity>(this QueryBuilder <TEntity> query, ICollectionView collectionView) where TEntity : Entity
{
IPagedCollectionView pagedCollectionView = collectionView as IPagedCollectionView;
if (pagedCollectionView == null)
{
throw new ArgumentException(Resources.MustImplementIpcv, "collectionView");
}
query = CollectionViewExtensions.SortBy(query, collectionView);
query = CollectionViewExtensions.PageBy(query, pagedCollectionView);
return(query);
}
/// <summary>
/// Pages the query using the page size and index of the specified <paramref name="collectionView"/>.
/// </summary>
/// <remarks>
/// The paged query will request the total item count if it is not already known to the specified
/// <paramref name="collectionView"/>.
/// </remarks>
/// <typeparam name="TEntity">The generic type of the entity</typeparam>
/// <param name="query">The query to page</param>
/// <param name="collectionView">The view containing the paging information</param>
/// <returns>A query paged according to the specified <paramref name="collectionView"/></returns>
public static QueryBuilder <TEntity> PageBy <TEntity>(this QueryBuilder <TEntity> query, IPagedCollectionView collectionView) where TEntity : Entity
{
if (collectionView.TotalItemCount == -1)
{
query.RequestTotalItemCount = true;
}
if (collectionView.PageSize > 0)
{
query = query.Skip(collectionView.PageIndex * collectionView.PageSize);
query = query.Take(collectionView.PageSize);
}
return(query);
}
/// <summary>
/// Pages the query using the page size and index of the specified <paramref name="collectionView"/>.
/// </summary>
/// <remarks>
/// The paged query will request the total item count if it is not already known to the specified
/// <paramref name="collectionView"/>.
/// </remarks>
/// <typeparam name="TEntity">The generic type of the entity</typeparam>
/// <param name="query">The query to page</param>
/// <param name="collectionView">The view containing the paging information</param>
/// <returns>A query paged according to the specified <paramref name="collectionView"/></returns>
public static EntityQuery <TEntity> PageBy <TEntity>(this EntityQuery <TEntity> query, IPagedCollectionView collectionView) where TEntity : Entity
{
return(CollectionViewExtensions.PageBy(new QueryBuilder <TEntity>(), collectionView).ApplyTo(query));
}
