having a datagrid with columns and setting the celleditor style to text column, then setting SelectionOnFocus to some value, then enter the edit mode, for example select all or cursor at start do not apply., always cursor at end applies.

The behavior also happens when using CellEditTemplate and there is RadEntry in it. The SelectionOnFocus does not apply. 

when loading same page without navigating to another page, there are some left instances of the DataGrid and the memory increase. 

When a monospace font is applied to cells, the cell content does not align as expected. Instead of maintaining consistent horizontal alignment typical of monospace typefaces (where each character occupies equal width), the text appears misaligned or uneven across cells.