Like what if the column is a number column or a date column, I want to make it so that the filter box for the datetime column is a datetimepicker textbox. How can I achieve this?
Are you using GridDateTimeColumn? If not, try binding data to a datetimecolumn, as the filtering item for this column(prometheus version of RadGrid) consists of a textbox with a datetimepicker which need not be set manually.