protected void OnItemsRealized(ItemsRealizedEventArgs e)
{
var handler = ItemsRealized;
if (handler != null)
{
handler(this, e);
}
}
private void HandleItemsRealized(object sender, ItemsRealizedEventArgs e)
{
var viewableDocument = Documents[e.StartingIndex].Item;
// collection may have been reset (and hence the item cleared) since the event was raised, thus the null check
if (viewableDocument != null)
DocumentsHaveId = !string.IsNullOrEmpty(viewableDocument.Id);
// When a view is refreshed, items can be realized in different orders (depending on the order the query responses come back from the db)
// So to stabilise the column set, we keep a list of 60 most recently used documents, and then sort them in index order.
mostRecentDocuments.AddRange(Enumerable.Range(e.StartingIndex, e.Count).Select(i => Documents[i]));
if (Columns.Source == ColumnsSource.Automatic)
{
var newColumns = GetCurrentColumnsSuggestion();
if (!Columns.Columns.Select(c => c.Binding).SequenceEqual(newColumns.Select(c => c.Binding)))
Columns.LoadFromColumnDefinitions(newColumns);
}
}
