5. Install this package in your project by following command. 1. When present, it specifies that multiple options can be selected at once. Both dropdowns are configured as Multi select choice fields. The tag. Tab can be used when the dropdown is opened as well as when it is closed. 2) Material Multi Select Dropdown with Reactive Form. Answer. This article will guide to through the process of extending the functionality of RadDropDownList to support multi selection with check boxes. Select the latest version of ASP.NET Core in the drop-down (. We are planning on taking the data into Power BI where we will transform the multiple values, just wanting the multi-select for the Excel sheet that will be the source for Power BI. This is because of this CSS--> "MSD FULL WINDOW" is getting override. First things first, it features groups in the drop-down, breaking things down beautifully to boost user experience. Thats not all you can do with the select and