This is related to my current issue : http://www.telerik.com/forums/override-gridtimedatetimecolumn-autofilling-to-current-time. But, it is not helping as not able to reset the value to null...
RadDateTimeEditor dtPicker = e.ActiveEditor asRadDateTimeEditor;if(dtPicker != null){ var wasNull = dtPicker.Value == null; RadDateTimePickerElement el = dtPicker.EditorElement asRadDateTimePickerElement; el.TextBoxElement.MaskType = MaskType.FreeFormDateTime; if(wasNull) { el.NullDate = newDateTime(1800, 1, 1, 0, 0, 0); el.SetToNullValue(); dtPicker.Value = null; }}