Using Telerik GridView. If a cell is wrapped multi-lines (the more lines the easier to reproduce), and the grid has both vertical and horizontal scrollbars. 
1) Fill one of the cells with a bunch of text in which will cause multi-line text wrapping of within that column.
2) Set focus to a different grid row
3) scroll the vertical scrollbar all the way to the bottom
4) scroll the horizontal scrollbar far enough away to lose visual of the Column
5) scroll the horizontal bar back to the right
Result: the vertical scrollbar will jump.
Expected: The scrollbars should not jump like this as it does not happen when the cell does not contain word-wrapped text.

Currently, within the LoadItems() method the items are being iterated directly, thus a second query to the database is triggered.  A separate list for this operation should be created.

Available in the 2017 R1 release (2017.1.117).

DataFormatString is not respected when exporting RadGridView to .xlsx file and a GridViewDataColumn is bound to a nested property.

Available in LIB version: 2017.2.605

1.   Run the sample application.

2.   Scroll to the last item.

3.   Begin to resize the window. The direction is irrelevant. Only the horizontal scrollbar needs to be visible.

4.   Observe that in the beginning of the resizing, the scrollbar auto scrolls upwards a little and the last item is half hidden.

I have a custom column based on GridViewBoundColumnBase. In it I override GetCellContent. If I bind the column to a nested property (MyProperty.SubProperty), what I return in GetCellContent is not shown, instead the nested property's "raw" value is shown.

Attached is a project illustrating the issue.

Available in the R1 2017 SP1 Release.

A workaround for the issue is to use RadObservableCollection as a source collection. Before the items are added to it, call the its SuspendNotifications method. Respectively, after that call the ResumeNotifications one. 

Another approach would be to populate the items through the AddRange method of the collection.

Available in R3 2017 Release