Question 1

How do I update a chart in real-time with BlazorChartjs?

Accepted Answer

Use the AddData or AddDataset methods on the chart reference. For instance, call _chart1.AddData() with new labels and data points to append values dynamically, as demonstrated in the README's real-time update examples.

Question 2

Is BlazorChartjs free for commercial use?

Accepted Answer

Yes, it's open-source under the MIT license and available on NuGet, so you can freely use it in commercial projects. Always verify the license terms for compliance.

Question 3

BlazorChartjs vs Syncfusion Blazor Charts - which is better?

Accepted Answer

BlazorChartjs is ideal if you prefer Chart.js's flexibility and a free, type-safe C# wrapper, while Syncfusion offers a richer, paid component suite with more built-in features but at a cost. Evaluate based on budget and charting needs.

Question 4

Can I use custom Chart.js plugins with this library?

Accepted Answer

Partially - it officially supports plugins like chartjs-plugin-datalabels, but for unsupported plugins, you may need to write custom JavaScript interop, as the C# API might not cover all configurations.

Question 5

How to handle click events on charts in Blazor?

Accepted Answer

Define a C# async function and assign it to the OnClickAsync property in the chart options. The function receives a CallbackGenericContext with dataset and data indices, allowing server-side handling, as shown in the OnClickAsync section.

Question 6

Does BlazorChartjs work with .NET 8 and Blazor WebAssembly?

Accepted Answer

Yes, it fully supports .NET 8, 7, and 6 for both Blazor WebAssembly and Blazor Server, ensuring compatibility with modern .NET ecosystems.

Question 7

What are the performance implications for Blazor Server apps?

Accepted Answer

Real-time updates involve JavaScript interop, which can add overhead in Blazor Server due to SignalR communication. For high-frequency updates, monitor performance and consider throttling or WebAssembly for client-side heavy lifting.

ChartJs for Blazor

What is ChartJs for Blazor?

Overview

Use Cases

Best For

Related Projects

Found a gem we're missing?

Not Ideal For

Pros & Cons

Pros

Cons

Frequently Asked Questions