Cshtml5 !exclusive! May 2026

ResultText.Text = $"Hello, InputBox.Text!";

– your C# runs in the browser! 6. CSHTML5 vs OpenSilver vs Blazor | Feature | Legacy CSHTML5 | OpenSilver (modern) | Blazor WebAssembly | |--------|----------------|----------------------|---------------------| | Active | ❌ No | ✅ Yes (MIT) | ✅ Yes | | .NET Version | .NET Framework 4.x | .NET 6,7,8 | .NET 6+ | | Language | C# + XAML | C# + XAML | C# + Razor/HTML | | Runs as | JS + HTML | JS + WebAssembly | WebAssembly | | Best for | Silverline migration | Silverlight/WPF migration | New .NET web apps | | UI Framework | WPF/Silverlight | WPF/Silverlight | Blazor components | Recommendation: If you're starting today , use OpenSilver (not legacy CSHTML5). If you're building a new web app from scratch, consider Blazor instead – but for migrating existing XAML code, OpenSilver is excellent. 7. Sample Output (What the User Sees) When you run the above code, the browser renders: cshtml5

[____________________] (TextBox) [ Say Hello ] (Button) Hello, World! (TextBlock) ResultText