I have been following the documentation on Calculated Fields (http://docs.telerik.com/devtools/wpf/controls/radpivotgrid/features/localdatasourceprovider/local-calc-fields) to configure some custom calculated fields that are sums of a set of other fields. For example, I have Fields A, B, and C in my data provider, and I created a calculated field to sum the totals of each of them into one field that they can include in the PivotGrid if they want.
However, I would really like to give my users the ability to setup sums of any number of fields of their choosing. For example, they may want to see a field represented by a sum of Fields A and B, but not C.
Is there a way to offer them the ability to create their own calculated fields? If not, do you any recommendation for how I might achieve something like this?