/// <summary>
/// Loads the data.
/// </summary>
/// <param name="filterSelector">The filter selector.</param>
public void LoadData(Func<TransferingItem, bool> filterSelector)
{
ThreadPool.QueueUserWorkItem((o) =>
{
var list = o as ObservableCollection<TransferingItem>;
System.Collections.Generic.IEnumerable<TransferingItem> query = null;
if (TargetAccount != null)
{
query = AccountBookDataContext.TransferingItems
.Where(filterSelector)
.Where(p => p.ToAccountName == TargetAccount.Name
|| p.FromAccountName == TargetAccount.Name);
}
else
{
query = AccountBookDataContext.TransferingItems
.Where(filterSelector).OrderByDescending(p => p.TransferingDate);
}
var dates = query.Select(p => p.TransferingDate.Date)
.OrderByDescending(p => p)
.Distinct().ToList();
var tempGroups = new List<DateTimeBasedGroupingViewModel<TransferingItem>>();
foreach (var date in dates)
{
var group = new DateTimeBasedGroupingViewModel<TransferingItem>(date);
group.AddRange(query.Where(p => p.TransferingDate.Date == date));
tempGroups.Add(group);
}
Deployment.Current.Dispatcher.BeginInvoke(() =>
{
GroupItems = tempGroups;
});
IsDataLoaded = true;
});
}
private void AddItemToGroup(TransferingItem entry)
{
var group = this.GroupItems.FirstOrDefault(p => p.Key == entry.TransferingDate.Date);
if (group == null)
{
group = new DateTimeBasedGroupingViewModel<TransferingItem>(entry.TransferingDate);
this.GroupItems.AddRange(group);
}
group.Add(entry);
}
