ASP.NET Core ColorPicker Overview

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

The ColorPicker is a drop-down list for selecting colors.

• Demo page for the ColorPicker HtmlHelper

• Demo page for the ColorPicker TagHelper

Initializing the ColorPicker

The following example demonstrates how to define the ColorPicker.

Razor

    @(Html.Kendo().ColorPicker()
          .Name("colorpicker") // The name of the ColorPicker is mandatory. It specifies the "id" attribute of the widget.
          .Value("#ff0000") // Set the value of the ColorPicker.
    )

Razor

        <kendo-colorpicker name="colorpicker" value="#ff0000">
			<messages apply="Change" cancel="Close" />
		</kendo-colorpicker>

Starting with the 2024 Q3 release, the HtmlHelper version of the component supports declarative initialization.

Basic Configuration

The following example demonstrates how to configure the tile size, columns, Change event, and palette colors.

Razor

        @(Html.Kendo().ColorPalette()
			.Name("palette")
			.Columns(4)
			.TileSize(s => s.Width(34).Height(19))
			.Palette(new string[] {
				"#f0d0c9", "#e2a293", "#d4735e", "#65281a",
				"#eddfda", "#dcc0b6", "#cba092", "#7b4b3a",
				"#fcecd5", "#f9d9ab", "#f6c781", "#c87d0e",
				"#e1dca5", "#d0c974", "#a29a36", "#514d1b",
				"#c6d9f0", "#8db3e2", "#548dd4", "#17365d"
			})
			.Events(events => events.Change("preview"))
		)

Razor

		@{
			string[] colorPickerPalette = new string[] {
                                        "#f0d0c9", "#e2a293", "#d4735e", "#65281a",
                                        "#eddfda", "#dcc0b6", "#cba092", "#7b4b3a",
                                        "#fcecd5", "#f9d9ab", "#f6c781", "#c87d0e",
                                        "#e1dca5", "#d0c974", "#a29a36", "#514d1b",
                                        "#c6d9f0", "#8db3e2", "#548dd4", "#17365d"
                                    };
		}
        <kendo-colorpalette name="palette" columns="4" on-change="preview" palette-colors="colorPickerPalette">
			<tile-size height="19" width="34" />
		</kendo-colorpalette>

Functionality and Features

Feature	Description
Appearance	Customize the ColorPicker appearance by using the available options.
Views	The component allows you to choose between gradient or palette view types.
Contrast Tool	The ColorPicker supports a contrast tool.
Formats	Configure the ColorPicker input formats.
Palettes	Define a color palette that the user can pick from.
Events	The ColorPicker allows you to handle its events and implement any custom logic.
[Adaptive Mode](% slug htmlhelpers_colorpicker_adaptive_mode_aspnetcore %)	The ColorPicker supports an adaptive mode that renders a mobile-friendly popup.

Next Steps

• Getting Started with the ColorPicker

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

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

• ColorPicker in Razor Pages

See Also

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