RangedSliders
Used for continuous numeric data, some integer data, and dates. Each grouping presents the user with a histogram approximating the distribution of the data, a 2 handled slider for constraining endpoints, and a min/max box displaying the current endpoints, which also allows a user to manually type the desired endpoints. Some numeric filters are known to have certain values that represent a null or undefined entry, and the filter will alert the user that it is ignoring such a value.