private void DisplayPage(int nextPage)
{
if (NumPages == 0)
{
return;
}
CurrentPage = nextPage;
if (CurrentPage > NumPages)
{
CurrentPage = 1;
}
else if (CurrentPage < 1)
{
CurrentPage = NumPages;
}
int iFirst = ((CurrentPage - 1) * NumGroupsPerPage);
int iNextPage = iFirst + NumGroupsPerPage;
if (iNextPage > _allItemsToShow.Count)
{
iNextPage = _allItemsToShow.Count;
}
ItemsToShow.Clear();
for (int i = iFirst; i < iNextPage; i++) // Remember these are groups, not individual items
{
ItemsToShow.Add(_allItemsToShow[i]);
}
OnPropertyChanged("PageNumberText");
}
private void RefreshBindingSourceForChart()
{
// I need to show top N items sorted by Characteristic, so we use appropriate comparer for sorting
_tables.Sort(GetComparer());
_tables.Reverse();
// and linq to select items needed
List <TableInfoViewItem> items = _tables
.Take(NumValues.Value)
.Select(x => new TableInfoViewItem(x, _characteristicToDisplay))
.ToList();
ItemsToShow.Clear();
foreach (TableInfoViewItem item in items)
{
ItemsToShow.Add(item);
}
}
void UpdateShownItems()
{
ItemsToShow.Clear();
if (Feeds == null || Feeds.Count <= 0)
{
ListViewPlaceholderText = "No Feeds Available";
return;
}
foreach (var item in Feeds.SelectMany(f => f.GetItemsBySearchTerm(SearchTerm)))
{
ItemsToShow.Add(item);
}
if (ItemsToShow.Count <= 0)
{
ListViewPlaceholderText = "No Feeds to Show";
}
else
{
ListViewPlaceholderText = string.Empty;
}
}
