I have been working wit the RadGridView for about 6 years now and it works great!
The only thing that still bugs me after all these years is the GridViewComboBoxColumn. The sorting and "Search as you type" features are not working for us. The fact that it uses the DataMemberBinding is something we do not get.
The fact that it is not ordered or searched into the shown value instead of the DataMemberPath is beyond me.
I mean, why would I, as a user, want to search into or sort a value that is not visible to me?
Adding a feature like a string property on the GridViewComboBoxColumn that is used for displaying, searching, filtering and sorting would be awesome!
The filter's distinct values work well, but the field filters show the enum value and that's not good.
I have attached a sample project to demonstrate the problems with sorting, filtering and searching.
There are also print screens attached to clarify each feature mentioned
When adding a new row and we click inside a DropDownContent of a DropDown control, the RadGridView loses focus. This way RowValidating event is called which is not expected.
In Office2016 when we increase the DPI of the Windows a left border in the header of column disappears. As a workaround you can set the Width property of all columns.
Group rows which are not present in the view are not visualized when the window is maximized.
A possible solution here is to set the GroupRenderMode property to Flat.
This happens only if there are many columns outside of the viewport (a scrollviewer is shown), with their TabStopMode property set to Skip.
In this case, the navigation needs some time in order to get to the next row and select the first available cell.
A possible workaround for this would be to implement a custom Keyboard Command Provider, and to replace the MoveNext command with a custom one, that moves the current cell, by setting the CurrentCellInfo property of RadGridView.