For files generated in C# (like CSVs or Excel reports) or retrieved from a secure API, Microsoft recommends using to bridge the gap between .NET and the browser's download engine. Implementation Steps:
Call this function using IJSRuntime and DotNetStreamReference . blazor download file to browser
The easiest way to allow a user to download a file is to use a standard HTML anchor tag. This works best for files already hosted in your wwwroot folder or available via a public URL. Download Report Use code with caution. Static files, small files, and public assets. For files generated in C# (like CSVs or
Create a script (e.g., in wwwroot/js/download.js ) to create a temporary URL for your data. javascript This works best for files already hosted in
It cannot easily be used for files protected by custom authentication headers or dynamically generated byte arrays. 2. Streaming Files via JavaScript Interop (Recommended)