public void GetHubCompositionsAsync()
{
DataServiceRepository<Composer.Repository.DataService.Composition> repository =
new DataServiceRepository<Composer.Repository.DataService.Composition>();
DataServiceQuery<Composer.Repository.DataService.Composition> qry =
repository.RetrieveAll<Composer.Repository.DataService.Composition>()
as DataServiceQuery<Composer.Repository.DataService.Composition>;
qry = qry.Expand(composition =>
composition.Verses);
qry = qry.Expand(composition =>
composition.Collaborations);
qry.BeginExecute(new AsyncCallback(a =>
{
try
{
IEnumerable<Composer.Repository.DataService.Composition> results = qry.EndExecute(a);
if (HubCompositionsLoadingComplete != null)
{
HubCompositionsLoadingComplete(this, new HubCompositionsLoadingEventArgs(results));
}
}
catch (Exception ex)
{
if (HubCompositionsLoadingError != null)
{
HubCompositionsLoadingError(this, new HubCompositionsErrorEventArgs(ex));
}
}
}), null);
}
public void GetCompositionAsync()
{
DataServiceRepository<Composer.Repository.DataService.Composition> repository =
new DataServiceRepository<Composer.Repository.DataService.Composition>();
Guid guid;
Guid.TryParse(this.CompositionId, out guid);
DataServiceQuery<Composer.Repository.DataService.Composition> qry =
repository.RetrieveAll<Composer.Repository.DataService.Composition>().Where(c => c.Id == guid)
as DataServiceQuery<Composer.Repository.DataService.Composition>;
qry = qry.Expand(composition =>
composition.Staffgroups.SubExpand(staffgroup =>
staffgroup.Staffs.SubExpand(staff =>
staff.Measures).SubExpand(measure =>
measure.Chords).SubExpand(chord =>
chord.Notes)));
qry = qry.Expand(composition =>
composition.Verses);
qry = qry.Expand(composition =>
composition.Collaborations);
qry = qry.Expand(composition =>
composition.Arcs);
qry.BeginExecute(new AsyncCallback(a =>
{
try
{
IEnumerable<Composer.Repository.DataService.Composition> results = qry.EndExecute(a);
if (CompositionLoadingComplete != null)
{
CompositionLoadingComplete(this, new CompositionLoadingEventArgs(results));
}
}
catch (Exception ex)
{
if (CompositionLoadingError != null)
{
CompositionLoadingError(this, new CompositionErrorEventArgs(ex));
}
}
}), null);
}