I'm having an intermittent issue since upgrading to the latest 2016 R3.
Sometimes when filtering a grid and then clicking a row in that grid I get a '[Arg_ArgumentOutOfRangeException]' exception. My application has many grids and they all seem to be affected. I don't think it was an issue before R3 but it is very rare so its hard to say for certain when it started.
I understand I'm not giving you much to go on here but I can barely recreate the issue myself. About 1 in 20 times I filter my grid and then click on a row I'll get this error.
Here is some of the stack trace I retrieved, any help at all would be greatly appreciated.
Parameter name: count
at System.Linq.Enumerable.Range(Int32 start, Int32 count)
at Telerik.Windows.Controls.GridView.Selection.CellRegionsPartitioner.CalculateAffectedRegions(Pair`2 firstAndLastSelectedIndices, Int32 columnCount)
at Telerik.Windows.Controls.GridView.Selection.CompositeSelectionHandler.UpdateSelectedCells(IList`1 items, Boolean isSelected)
at Telerik.Windows.Controls.GridView.Selection.CompositeSelectionHandler.UpdateCellSelectionOnSelectedItemsChanged(SelectionChangeEventArgs selectionChangeArgs)
at Telerik.Windows.Controls.GridView.Selection.CompositeSelectionHandler.OnOwnerSelectionChangedDispatch(Object sender, SelectionChangeEventArgs e)