protected void grid_CustomSummaryCalculate(object sender, DevExpress.Data.CustomSummaryEventArgs e)
{
if (!e.IsTotalSummary)
{
return;
}
ASPxGridView g = sender as ASPxGridView;
if ((e.SummaryProcess == CustomSummaryProcess.Finalize))
{
decimal totalValue = 0;
CollectGorups();
foreach (int groupRowIndex in groupRowIndexes)
{
decimal uisCount = (decimal)g.GetGroupSummaryValue(groupRowIndex, grid.GroupSummary["UnitsInStock"]);
decimal uioCount = (decimal)g.GetGroupSummaryValue(groupRowIndex, grid.GroupSummary["UnitsOnOrder"]);
totalValue += uisCount - uioCount;
}
e.TotalValue = totalValue;
}
}