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Overview
The ASP.NET Core Range Slider is an HTML5 input control that is used to select a value or range of values. Select a relative quantity value by moving a thumb along a bar. The control has major/minor ticks, thumb, and tooltip that can be fully customized. Also, the control can be aligned horizontally or vertically.
Numeric Range Slider
Select a range of numeric values intuitively by using two handles. A range slider usually fills a color between the handles to indicate selection.


Single value Slider
This simple slider control allows users to select a specific numeric value from a range. Fill selection option is available to indicate the selected range visually.
Touch-friendly and responsive
The Range Slider control recognizes touch gestures, allowing the user to swipe left or right to change the value of the slider. The responsive, touch-friendly design provides the best user experience on all phone, tablet, and desktop form factors.


Formatting values
Users can format slider values with a prefix (e.g. $10) and postfix (e.g. 10 km), and prettify the given values (e.g. 10000 to 10,000).
Custom slider
Users can customize the slider as needed and change it to a date range slider, time range slider, price range slider, rating slider, custom values, and more.

Vertical slider
The Range Slider control can be aligned both horizontally and vertically.
Floating and negative values
The Range Slider control follows the HTML5 input type range standards, and supports numbers, and also floating and negative values regardless of the format.

The Form Tag Helper
The ASP.NET Core Slider seamlessly supports form tag helper and validation.
Tooltips
The tooltip displays slide value information when the mouse pointer moves the thumb over the bar. The same can be done on mobile devices by touch events.

Snap to increment
Allows users to select a value or range between precise intervals by configuring the step interval value.
UI customization
The slider bar, thumbs, ticks, and tooltips can be completely customized using CSS and callback events.
Built-in and customizable themes
Several built-in, Sass-based themes are available: Fluent, Tailwind CSS, Bootstrap 5, Bootstrap, Material, and high contrast. Users can customize these themes by either overriding the existing Sass styles or creating custom themes using the Theme Studio application.
Globalization and Localization
The Range Slider control is designed to work in multiple cultures, and can also be localized for a specific culture.
Other frameworks
The ASP.NET Core Range Slider control is also available in Blazor, JavaScript, Angular, React and Vue frameworks that are built from their own TypeScript libraries.
Web Accessibility
- Fully supports WAI-ARIA accessibility that helps sliders be accessible by on-screen readers and assistive devices.
- Designed UI visual elements such as foreground color, background color, line spacing, text, and images based on the WCAG 2.0 standard.
- Follows WAI-ARIA best practices for implementing keyboard interaction.
Developer-friendly APIs
Developers can customize all UI elements and control its behaviors. A rich set of developer-friendly APIs provides the best user experience.
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