Calling function from generated button in Blazor

by

I guess you should add a local variable to your loop as follows:

@for (int i = 0; i < Buttons.Count; i++)
    {
        var local = i;
        <button type="button" class="btn btn-primary btn-lg" style="margin:10px" onclick="@((ui) => ButtonClicked(local))">@Buttons[i]</button>
    }

This is a standard C# behavior, not related to Blazor, where the lambda expression @((ui) => ButtonClicked(i)) has access to a variable and not to its value. You’ve got to define a variable which is local to your loop, otherwise your lambda expression always calls ButtonClicked(i) and i equals 3 when the loop ends.

Hope this helps…

More Related Contents:

  1. Get current URL in a Blazor component
  2. How to add OpenIdConnect via IdentityServer4 to ASP.NET Core ServerSide Blazor web app?
  3. Cannot debug Blazor wasm
  4. NavigationManager – Get current URL in a Blazor component
  5. Blazor component : refresh parent when model is updated from child component
  6. Blazor – How to create Components dynamically
  7. How to map fallback in ASP .NET Core Web API so that Blazor WASM app only intercepts requests that are not to the API
  8. Can’t use Count() in C#
  9. .Net Core 3.0 possible object cycle was detected which is not supported
  10. ASP.NET Core return JSON with status code
  11. ASP.NET Core 2.0 authentication middleware
  12. How to return a specific status code and no contents from Controller?
  13. Asp.Net core long running/background task
  14. How to unapply a migration in ASP.NET Core with EF Core
  15. Manipulating images with .NET Core
  16. Is there an Entity Framework 7 Database-First POCO Generator?
  17. ASP.NET Core disable authentication in development environment
  18. How can I trigger/refresh my main .RAZOR page from all of its sub-components within that main .RAZOR page when an API call is complete?
  19. ASP.NET Core API only returning first result of list
  20. loading a full hierarchy from a self referencing table with EntityFramework.Core
  21. Generate access token with IdentityServer4 without password
  22. Simple token based authentication/authorization in asp.net core for Mongodb datastore
  23. Intercept bad requests before reaching controller in ASP.NET Core
  24. Customize automatic response on validation error
  25. Register AspNetCore 2.1 Identity system with DbContext interface
  26. ‘HttpPostedFileBase’ in Asp.Net Core 2.0
  27. ASP.NET Core – Authorization Using Windows Authentication
  28. Equivalent of UseUrls for .NET Core 3.1/IHostBuilder
  29. Formatting DateTime in ASP.NET Core 3.0 using System.Text.Json
  30. Blazor Textfield Oninput User Typing Delay

Leave a Comment