For the first Big thanks for awesome tool.
How can i use aggregation function like a sum, avg, count in the grid?
I have field with Sum field value in multipage grid. I wanted to calculate sum of Sum field in all pages and with appled filters. At now i "hacked" some sources and added two function to GridBase and use it in PrepareItemsToDisplay() function.
Then i ise it in
@Html.Grid(Model).GetSumForItems(item => (filteredsum += item.invoice_sum.Value)).GetCountForItems(item => (filteredcount++))
But how can i do this without hacking any functions?