The ASP.NET Core Blazor ComboBox component is a drop-down list with an editable option that also allows users to choose an option from a predefined pop-up list. It can be used as an alternative to the HTML select tag and has several out-of-the-box features such as data binding, filtering, grouping, cascading, templates, UI customization, pop-up list customization, and more.
The editable combo box allows the entry of a custom value when the option the user searched for is not available in the pop-up list. Also, you can set a value for the combo box or get the selected value from the combo box at any time through the interactive APIs.
Built-in filtering support with a rich set of filtering configurations is available to meet all your application needs.
Filter queries are customizable, and you can use your own filter libraries to filter data.
The ComboBox component supports diacritic character sensitivity. This behavior can be turned on or off.
The filter search can be customized with case sensitivity, and can be performed with minimum query string characters.
Group the pop-up list items with a corresponding category that makes it easy for users to pick an item quickly from the drop-down, and also improves the visual experience for users.
The autofill option allows users to easily search through options in the combo box. When a user is typing a query string to search, the available matching options will be filled automatically.
The Blazor ComboBox component provides an option to create multiple cascading combo boxes, which helps users populate data for a child combo box based on the current selected value of the parent combo box.
Since the combo box is a form component, it supports HTML forms, template-driven forms (Angular), and reactive forms.
The Blazor ComboBox component supports a responsive mode that provides an adaptive, redesigned UI appearance for mobile devices and touch actions.
Fully supports WAI-ARIA accessibility guidelines to work with screen readers and assistive devices.
Follows WAI-ARIA best practices for implementing keyboard interaction.
Designs the UI element visuals such as foreground color, background color, line spacing, text, and images based on WCAG 2.0 standard.
Supports right-to-left (RTL) direction for users working in right-to-left languages like Hebrew, Arabic, or Persian.
Developers can customize all UI elements and control their behaviors according to the end user’s requirements using its rich set of client-side APIs.
As a pure JavaScript component, our ComboBox integrates easily with any web frameworks.
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