ASP.NET Core PopOver Overview

The Telerik UI PopOver TagHelper and HtmlHelper for ASP.NET Core are server-side wrappers for the Kendo UI PopOver widget.

The PopOver is a transient view that appears when the user clicks on a specified element or hovers within a particular area. It can contain elements such as buttons, icons, lists, and so on.

• Demo page for the PopOver HtmlHelper

• Demo page for the PopOver TagHelper

PopOver vs. Tooltip

The PopOver and Tooltip components share some similar features - you can use both to display some additional content. The following list describes the differences between them.

The PopOver:

• Usually holds more content than the Tooltip (The PopOver has a header and body section).
• Allows you to add a variety of graphical elements.
• Supports action buttons.
• Provides additional context to the parent element.

The Tooltip:

• Usually holds less content than the PopOver.
• Is designed to display a small amount of text.
• Provides clarification to the parent element.

Initializing the PopOver

The PopOver is usually displayed or dismissed as a result of a user action. It exposes various options for positioning.

The following example demonstrates how to define the PopOver.

Razor

   <span id="info" class="k-button k-button-solid-primary k-button-solid k-button-md k-rounded-md">Hover me!</span>

    @(Html.Kendo().Popover()
        .For("#info")
        .Position(PopOverPosition.Right)
        .ShowOn(PopoverShowOn.MouseEnter)
        .Body("Main content")
    )

Razor

	<span id="info" class="k-button k-button-solid-primary k-button-solid k-button-md k-rounded-md">Hover me!</span>

	<kendo-popover for="#info" show-on="mouseenter" position="right" body="Main content"></kendo-popover>

Basic Configuration

The PopOver provides default configuration options such as its height and width, action buttons, header and body content, animations and events that will trigger its opening, and so on.

The following example demonstrates the basic configuration of the PopOver.

Razor

   <span id="info" class="k-button k-button-solid-primary k-button-solid k-button-md k-rounded-md">Click here</span>

    @(Html.Kendo().Popover()
        .For("#info")
        .Width(120)
        .Height(120)
        .Position(PopoverPosition.Top)
        .Header("More Information:")
        .Body("Information content")
        .Actions(a => a.Add().Text("Okay"))
        .ActionsLayout(PopoverActionsLayout.Center)
        .Animation(animation =>
        {
            animation.Open(op => op.Zoom(ZoomDirection.In).Duration(5));
            animation.Close(cl => cl.Zoom(ZoomDirection.Out).Duration(5));
        })
        .ShowOn(PopoverShowOn.Click)
    )

Razor

	<span id="info" class="k-button k-button-solid-primary k-button-solid k-button-md k-rounded-md">Click here</span>

	<kendo-popover for="#info" show-on="click" position="top" width="120" height="120" header="More Information:" body="Information content" actions-layout="center">
		<actions>
			<action text="Okay"></action>
		</actions>
		<animation>
			<open duration="5" effects="zoom:in"/>
			<close duration="5" effects="zoom:out" />
		</animation>
	</kendo-popover>

Functionality and Features

• Templates—The PopOver provides template options that allow you to customize the header and body content.
• Events—The component exposes the Show and Hide events that you can handle and control its behavior.

Next Steps

• Getting Started with the PopOver

• Basic Usage of the PopOver HtmlHelper for ASP.NET Core (Demo)

• Basic Usage of the PopOver TagHelper for ASP.NET Core (Demo)

See Also

• Using the API of the PopOver for ASP.NET Core (Demo)
• Knowledge Base Section