c# - Redirecting in blazor with parameter

Question

Hello how can you redirect to another page in Blazor with a parameter?

@page "/auth"
@using Microsoft.AspNetCore.Blazor.Services;
@inject AuthService auth
@inject IUriHelper urihelper;

<input type="text" bind="@Username" />
<button onclick="@AuthAsync">Authenticate</button>



@functions{

    public string Username { get; set; }
    public string url = "/home";

    public async Task AuthAsync()
    {
        var ticket=await this.auth.AuthenticateAsync(Username);
        urihelper.NavigateTo(url); //i see no overload that accepts parameters
    }
}

In this case i want to navigate to the /home page giving it a string as parameter.

Answer 1

Do this:

• Create a home.cshtml file page like this: Note that two @page directive are employed since optional parameters are not supported yet. The first permits navigation to the component without a parameter. The second @page directive takes the {username} route parameter and assigns the value to the Username property.

Pages/home.cshtml

@page "/home"
@page "/home/{username}"

<h1>@Username is authenticated!</h1>

@functions {
    // Define a property to contain the parameter passed from the auth page
    [Parameter]
    private string Username { get; set; };
}

• Do this in your auth.cshtml

    @functions{

        public string Username { get; set; }
        public string url = "/home";

        public async Task AuthAsync()
        {
            var ticket=await this.auth.AuthenticateAsync(Username);
            // Attach the parameter to the url
            urihelper.NavigateTo(url + "/" + Username); 
        }
    }

Hope this helps...