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ASP.NET Core MultiSelect Select All

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HtmlHelper
TagHelper
Files:
select_all.cshtml
Select_AllController.cs
Select_All_TagHelper.cshtml

Also available for:

CLIENT-SIDE API HTML HELPER API

Description

The Telerik UI for ASP.NET Core MultiSelect provides a built-in Select All functionality through the SelectAll configuration option. When enabled, a sticky header item appears at the top of the dropdown that allows users to select or deselect all items with a single click. Combined with the Checkboxes option, the header displays a checkbox that reflects the aggregate selection state: unchecked, indeterminate, or checked. When filtering is active, the Select All action applies only to the currently visible items.

Additional Apps

This MultiSelect example is part of unique collection of hundreds of ASP.NET Core demos, with which you can see all Telerik ASP.NET Core components and their features in action. View the source code of the demos from the library or directly adapt, and edit them and their theme appearance in Telerik REPL for ASP.NET Core or ThemeBuilder.

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