Expand Mode in ASP.NET MVC Accordion Control

19 Dec 20223 minutes to read

The Accordion supports the two listed types of expand modes while expanding or collapsing the item.

  • Single
  • Multiple

Single

The property enables to expand only one Accordion item at a time. If you expand any new item, the previously expanded one is collapsed and new item changed to expanded state.

@using Syncfusion.EJ2.Navigations;

@(Html.EJS().Accordion("defaultAccordion")
    .ExpandMode(ExpandMode.Single)
    .Items(new List<AccordionAccordionItem> {
        new AccordionAccordionItem { Header = "ASP.NET", Expanded = true, Content = "Microsoft ASP.NET is a set of technologies in the Microsoft .NET Framework for building Web applications and XML Web services. ASP.NET pages execute on the server and generate markup such as HTML, WML, or XML that is sent to a desktop or mobile browser. ASP.NET pages use a compiled,event-driven programming model that improves performance and enables the separation of application logic and user interface." },
        new AccordionAccordionItem { Header = "ASP.NET MVC", Content = "The Model-View-Controller (MVC) architectural pattern separates an application into three main components: the model, the view, and the controller. The ASP.NET MVC framework provides an alternative to the ASP.NET Web Forms pattern for creating Web applications. The ASP.NET MVC framework is a lightweight, highly testable presentation framework that (as with Web Forms-based applications) is integrated with existing ASP.NET features, such as master pages and membership-based authentication." },
        new AccordionAccordionItem { Header = "JavaScript", Content = "JavaScript (JS) is an interpreted computer programming language.It was originally implemented as part of web browsers so that client-side scripts could interact with the user, control the browser, communicate asynchronously, and alter the document content that was displayed.More recently, however, it has become common in both game development and the creation of desktop applications." }
    })
    .Render()
)
public ActionResult Index()
{
    return View();
}

Accordion Control with expand mode of single type

Multiple

Default expand mode of the Accordion is Multiple. It enables you to expand more than one Accordion item at a time. Expand or collapse action can also be toggled by clicking on it again. For example, expanded item is collapsed when you click on it again.

@using Syncfusion.EJ2.Navigations;

@(Html.EJS().Accordion("defaultAccordion")
    .ExpandMode(ExpandMode.Multiple)
    .Items(new List<AccordionAccordionItem> {
        new AccordionAccordionItem { Header = "ASP.NET", Expanded = true, Content = "Microsoft ASP.NET is a set of technologies in the Microsoft .NET Framework for building Web applications and XML Web services. ASP.NET pages execute on the server and generate markup such as HTML, WML, or XML that is sent to a desktop or mobile browser. ASP.NET pages use a compiled,event-driven programming model that improves performance and enables the separation of application logic and user interface." },
        new AccordionAccordionItem { Header = "ASP.NET MVC", Expanded = true, Content = "The Model-View-Controller (MVC) architectural pattern separates an application into three main components: the model, the view, and the controller. The ASP.NET MVC framework provides an alternative to the ASP.NET Web Forms pattern for creating Web applications. The ASP.NET MVC framework is a lightweight, highly testable presentation framework that (as with Web Forms-based applications) is integrated with existing ASP.NET features, such as master pages and membership-based authentication." },
        new AccordionAccordionItem { Header = "JavaScript", Expanded = true, Content = "JavaScript (JS) is an interpreted computer programming language.It was originally implemented as part of web browsers so that client-side scripts could interact with the user, control the browser, communicate asynchronously, and alter the document content that was displayed.More recently, however, it has become common in both game development and the creation of desktop applications." }
    })
    .Render()
)
public ActionResult Index()
{
    return View();
}

Accordion Control with expand mode of multiple type

NOTE

View Sample in GitHub.

See also