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Create A File Manager Component In A Blazor Webassembly App

Sample date Updated on Apr 30, 2026
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Repository Description
This repository contains a quick-start Blazor WebAssembly sample that demonstrates how to create and configure the Syncfusion Blazor File Manager component.

The sample shows how to perform common file operations using server-side PhysicalFileProvider logic, including downloading files, uploading files, and displaying image previews directly within the File Manager interface.

Project Overview

The purpose of this project is to help developers learn how to integrate the Syncfusion Blazor File Manager into a Blazor WebAssembly application. It provides a practical example of connecting client-side File Manager interactions to server-side file handling logic.

Features

  • Integration of Syncfusion Blazor File Manager in a Blazor WebAssembly app
  • Perform file operations using server-side PhysicalFileProvider
  • Upload and download files
  • Preview images in the File Manager
  • Web-based file management experience using Blazor

Prerequisites

Ensure the following requirements are met before running this project:

  • Visual Studio 2022
  • .NET SDK compatible with Blazor WebAssembly
  • Syncfusion Blazor packages
  • Valid Syncfusion license key (if required)

How to run the sample

  1. Download or clone this repository to your local machine.
  2. Open the solution file using Visual Studio 2022.
  3. Restore the NuGet packages by rebuilding the solution.
  4. After restoring the dependencies, run the project from Visual Studio.
  5. The Blazor WebAssembly application starts and displays the Syncfusion File Manager component in the browser.

Usage

Once the application is running, you can:

  • Browse files and folders in the File Manager
  • Upload new files to the server
  • Download existing files
  • Preview images directly within the File Manager UI

This setup demonstrates how client-side Blazor components interact with server-side file operations.

Configuration

The File Manager is configured to use server-side file handling logic through PhysicalFileProvider. You can customize this logic to:

  • Change the root directory
  • Restrict file access
  • Extend support for additional file operations

Documentation

Additional Resources

Troubleshooting

  • Ensure NuGet packages are restored successfully.
  • Verify the Syncfusion license key is registered.
  • Rebuild the project if UI changes are not reflected.
  • Check browser and server logs for runtime errors.

Support

For additional help, refer to the official Blazor documentation or the Syncfusion Blazor File Manager documentation linked above. To get more help, check the ASP.NET Core Blazor documentation.

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