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Appearance

Updated on Feb 4, 2026

In this article, you will find information about the styling options and rendering of the Telerik UI for ASP.NET MVC Button.

For a complete example, refer to the Appearance Demo of the Button.

Options

The Button component provides the following options for styling:

Size()—Configures the overall size of the component.
ThemeColor()—Sets what color will be applied to the component.
FillMode()—Defines how the color is applied to the Button.
Rounded()—Determines the border radius of the component.

Size

To control the size of the Button, configure the Size option with any of the following values:

Small
Medium
Large

When not explicitly set, the applied theme controls the default size.

Razor

@(Html.Kendo().Button()
    .Name("textButton")
    .Size(ComponentSize.Medium)
    .HtmlAttributes( new {type = "button"} )
    .Content("Text Button")
)

FillMode

The FillMode() method specifies how the color is applied to the component.

When not explicitly set, the applied theme controls the default fill mode.

Razor

@(Html.Kendo().Button()
    .Name("textButton")
    .FillMode(ButtonFillMode.Solid)
    .HtmlAttributes( new {type = "button"} )
    .Content("Text Button")
)

The following options are available for the FillMode configuration:

Solid
Outline
Flat
Link
Clear

The None value is deprecated. Use custom CSS to achieve an unstyled appearance.

ThemeColor

The ThemeColor configuration provides a variety of colors that can be applied to the Button. The available options are:

Base
Primary
Secondary
Tertiary
Info
Success
Warning
Error
Dark
Light
Inverse

When not explicitly set, the applied theme controls the default theme color.

Razor

@(Html.Kendo().Button()
    .Name("textButton")
    .ThemeColor(ThemeColor.Base)
    .HtmlAttributes( new {type = "button"} )
    .Content("Text Button")
)

Rounded

The border radius of the Button can be customized through the Rounded() method.

When not explicitly set, the applied theme controls the default border radius.

Razor

@(Html.Kendo().Button()
    .Name("textButton")
    .Rounded(ButtonRounded.Medium)
    .HtmlAttributes( new {type = "button"} )
    .Content("Text Button")
)

The following values are available for the Rounded option:

Small
Medium
Large
Full

The None value is deprecated. Use custom CSS to remove border radius.

Rendering

Starting with version R1 2022, the component has a new rendering. For additional information on the decision behind these changes, visit the Components Rendering Overview article.

To review the latest rendering of the component, refer to the HTML specifications in the Kendo UI Themes Monorepo. The tests folder of the repository contains the rendering for all flavors of the components, providing a clear reference for how their elements are structured. The rendering information can help you customize a component's appearance and behavior by applying custom CSS or JavaScript to suit specific design or functional requirements.