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How To Add A Custom Toolbar Item To An ASP.NET Core Rich Text Editor

Sample date Updated on Sep 13, 2025
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aspnetcore aspnetcore-controls aspnetcore-rte components custom-toolbar-item customize editor html markdown richtexteditor rte syncfusion-aspnetcore-rte toolbar

This quick-start project helps users add a custom toolbar item in the Syncfusion® ASP.NET Core Rich Text Editor control. This example explains how to add a new toolbar item and insert a symbol into the editor.

Watch the video: https://www.syncfusion.com/tutorial-videos/aspnet-core/richtexteditor?title=how-to-add-a-custom-toolbar-item-to-an-asp-net-core-rich-text-editor

Refer to the following documentation to learn about the ASP.NET Core RTE control: https://ej2.syncfusion.com/aspnetcore/documentation/rich-text-editor/toolbar#custom-tool

Check out this online example of the ASP.NET Core RTE control: https://ej2.syncfusion.com/aspnetcore/richtexteditor/insertspecialcharacters

Prerequisites

How to run the project

  • Clone this project to a location in your disk.

  • Open the solution file using Visual Studio 2022.

  • Restore the NuGet packages by rebuilding the solution.

  • Run the project.

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