In radgrid, the excel style filtering shows a checkbox list of values to filter a column.  This has limited use on a date + time column of a grid, because such a list would show basically every grid row value in the list.  I can bind date only to the filter checkboxes to shorten that list, but if I apply a selected checkbox to filter then there will be no records returned.  This checkbox filtering needs to work with the grid column attribute EnableTimeIndependentFiltering (when it is filtering a datetime column) but it does not - that attribute only works with the datepicker calendar and text entry.