Getting started with ASP.NET Core DropDownButton control

This section briefly explains about how to create a simple DropDownButton in your ASP.NET Core application. You can refer ASP.NET Core Getting Started documentation page for introduction part of the system requirements and configure the common specifications.

Add DropDownButton to the project

To create DropDownButton add the ejs-dropdownbutton tag with id attribute as element in your Index.cshtml page.

<ejs-dropdownbutton id="element" content="Edit" items="ViewBag.items"></ejs-dropdownbutton>

ViewBag.items variable is used for bounding the items property in view page.

Bind dataSource

Populate the action items in SplitButton by using the items property. Here, the JSON values are passed to the DropDownButton component are generated in default.cs and assigned to ViewBag variable.

public IActionResult Index()
{
    List<object> items = new List<object>();
    items.Add(new
    {
        text = "Cut"
    });
    items.Add(new
    {
        text = "Copy"
    });
    items.Add(new
    {
        text = "Paste"
    });
    ViewBag.items = items;
    return View();
}

Output be like the below.

Run the application

After successful compilation of your application, simply press F5 to run the application.

The following example shows a basic DropDownButton.

<ejs-dropdownbutton id="element" content="Edit" items="ViewBag.items"></ejs-dropdownbutton>

public ActionResult Index()
{
    List<object> items = new List<object>();
    items.Add(new
    {
        text = "Cut"
    });
    items.Add(new
    {
        text = "Copy"
    });
    items.Add(new
    {
        text = "Paste"
    });
    ViewBag.items = items;
    return View();
}