/// <summary>
/// Formats group header information.
/// </summary>
/// <param name="e"></param>
private void GroupAggregate(C1GroupTextEventArgs e)
{
if (CalculateAggragateSums)
{
var groupColumnIndex = Grid.GroupedColumns.IndexOf(e.GroupCol);
var listIndex = (Grid.PageIndex * Grid.PageSize) + e.StartItemIndex;
if (listIndex > Page.Data.Count - 1)
{
listIndex = e.StartItemIndex;
}
var refValue = Page.Data[listIndex];
var list = Page.Data.ToList();
//var key = groupColumnIndex + listIndex;
var key = string.Empty;
for (var j = 0; j <= groupColumnIndex; j++)
{
var col = Grid.GroupedColumns[j] as C1BoundField;
string dataField;
if (col != null)
{
dataField = col.DataField;
}
else
{
var temp = Grid.GroupedColumns[j] as C1TemplateField;
if (temp == null)
{
continue;
}
var originalIndex = GetOriginalColumnIndex(Grid.Columns.IndexOf(Grid.GroupedColumns[j]));
var properties = from p in typeof(T).GetProperties()
let atts = p.GetGridMappingAttributes()
where atts.Count() > 0 &&
atts.First().IsTemplate &&
atts.First().Index == originalIndex
select p.Name;
if (properties.Count() == 0)
{
continue;
}
dataField = properties.First();
}
key += string.Concat("[", refValue.GetReflectedValue(dataField).ToString(), "]");
list = (from o in list
let data = o.GetReflectedValue(dataField)
where data != null && data.Equals(refValue.GetReflectedValue(dataField))
select o).ToList();
}
var subtotales = CalcularSubTotales(list, key);
if (subtotales.Count >= Aggregates.Count)
{
for (var i = 0; i < Aggregates.Count; i++)
{
var aggregate = Aggregates[i];
var aggregateIndex = aggregate.OriginalColumnIndex;
var columnIndex = GetOriginalColumnIndex(GetColumnIndex(e.Col));
if (aggregateIndex.Equals(columnIndex))
{
e.Text = GetFormatedTotalString((double)subtotales[i], aggregate, list);
}
}
}
}
}
void Grid_GroupAggregate(object sender, C1GroupTextEventArgs e)
{
GroupAggregate(e);
}
