We have upgraded from WinControl UI 2010 to 2019 R2.
we have a lot of non-data bound radgridview that we process our data and add each row manually.
The radgridView.Rows.Add(rowdatacolumn1, rowdatacolumn2, rowdatacolumn3) used to return the row index of the added row. It is now returning -1 .
This is breaking a lot of our code.