can anyone tell me, how I can filter my dataprovider?
I have an dataprovider object with round about 1000 items with attributes like name, startdate, enddate, status, … There could be some entries for one name. I want to count the items to one name, get the average of startdate - enddate (of all items) and want to display it in a gridview like:
name | average time | count
But I don’t know how I can filter my dataprovider. Thanks in advance!