Solution: There is no single solution to your question. The following code is just one approach. Take a look and adapt it to your requirements. The code resets a timer on each keyup, only last timer raises the OnUserFinish event. Remember to dispose timer by implementing IDisposable @using System.Timers; @implements IDisposable; <input type=”text” @bind=”Data” @bind:event=”oninput” … Read more
TL;DR This is because of the prerendering mechanism that initializes the component as a part of the host page _Host.cshtml, so that the first http request would result in a host page that comes not only as a script loader of the blazor application, but also with a statically rendered view. Therefore the user could … Read more
Well, I came across this issue this morning and the way I solved it for server-side Blazor was to create a class that you can then inject as a scoped service on your _host.cshtml, and then access it anywhere on your Blazor components, as Razor pages already have support for this. public class BlazorAppContext { … Read more
I believe that will work… Place the following code snippet in the _Imports.razor file @using Microsoft.AspNetCore.Authorization @attribute [Authorize] In that case, when the Index page is hit, the user will be redirected to the Login page. If you want to perform authentication before the Blazor App is being render, add the code snippet from above … Read more
Maybe you can try running your application from command prompt: dotnet watch run debug
Note: The sample code below was created and tested in a WebAssembly Blazor App stand alone… An object reference is required for the nonstatic field, method, or property ‘member’ Let’s create the object class, whose object reference will be passed to your JavaScript’s object when initialized. When the user clicks on a location on the … Read more
Create a shared service. Subscribe to the service’s RefreshRequested event in the parent and Invoke() from the child. In the parent method call StateHasChanged(); public interface IMyService { event Action RefreshRequested; void CallRequestRefresh(); } public class MyService: IMyService { public event Action RefreshRequested; public void CallRequestRefresh() { RefreshRequested?.Invoke(); } } //child component MyService.CallRequestRefresh(); //parent component … Read more
There are three possibilities for getting the user in a component (a page is a component): Inject IHttpContextAccessor and from it access HttpContext and then User; need to register IHttpContextAccessor in Startup.ConfigureServices, normally using AddHttpContextAccessor. Edit: according to the Microsoft docs you must not do this for security reasons. Inject an AuthenticationStateProvider property, call GetAuthenticationStateAsync … Read more
This is a classic problem, but slightly new in the context of Blazor. You need to make a copy of i because otherwise the lambda “captures the loop variable”. Capturing the copy is OK. @for (int i = 0; i < 3; i++) { int localCopy = i; <li> item @i <button onclick=@(() => clickItem(localCopy))>Click</button> … Read more
You probably don’t want to Invoke() the GetValue(), that would be rather pointless. You can implement the timer like this: System.Threading.Timer timer; protected override void OnInitialized() { timer = new System.Threading.Timer(async _ => // async void { Time = await GetValue(); // we need StateHasChanged() because this is an async void handler // we need … Read more