IcyIme Posts - Answer Overflow

IcyIme

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CC#

•Created by IcyIme on 7/29/2024 in #help

how can i run multiple projects in vscode

4 replies

CC#

•Created by IcyIme on 7/17/2024 in #help

✅ i want get the id of user but id wont show up of user blazor wasm with web api

there is git repo: https://github.com/IcyIme/UniCademyProject page name: Userid.razor

17 replies

CC#

•Created by IcyIme on 7/16/2024 in #help

✅ ClaimTypes.NameIdentifier not retruning id of current user

i want to get id of current user but ClaimTypes.NameIdentifier not working and i dont know why

@page "/profile"
@using System.Security.Claims
@using Microsoft.AspNetCore.Authorization
@using UniCademy.Client.Model
@inject AuthenticationStateProvider AuthenticationStateProvider
@attribute [Authorize]

<PageTitle>Profile</PageTitle>

<h1>@name</h1>
<h2>@userId</h2>

@code {
    private string name;
    private string userId;

    protected override async Task OnInitializedAsync()
    {
        var authState = await AuthenticationStateProvider.GetAuthenticationStateAsync();
        var user = authState.User;

        if (user.Identity.IsAuthenticated)
        {
            name = user.Identity.Name;
            userId = user.FindFirst(c => c.Type == ClaimTypes.NameIdentifier)?.Value;
        }
        else
        {
            name = "User not authenticated";
            userId = "No ID";
        }
    }
}

@page "/profile"
@using System.Security.Claims
@using Microsoft.AspNetCore.Authorization
@using UniCademy.Client.Model
@inject AuthenticationStateProvider AuthenticationStateProvider
@attribute [Authorize]

<PageTitle>Profile</PageTitle>

<h1>@name</h1>
<h2>@userId</h2>

@code {
    private string name;
    private string userId;

    protected override async Task OnInitializedAsync()
    {
        var authState = await AuthenticationStateProvider.GetAuthenticationStateAsync();
        var user = authState.User;

        if (user.Identity.IsAuthenticated)
        {
            name = user.Identity.Name;
            userId = user.FindFirst(c => c.Type == ClaimTypes.NameIdentifier)?.Value;
        }
        else
        {
            name = "User not authenticated";
            userId = "No ID";
        }
    }
}

22 replies

CC#

•Created by IcyIme on 7/15/2024 in #help

identity blazor

i have this code for getting user id of current user but its return null

csharp     protected override async Task OnParametersSetAsync()
    {
        var authState = await AuthenticationStateProvider.GetAuthenticationStateAsync();
        var user = authState.User;

        if (string.IsNullOrEmpty(userId) && user.Identity.IsAuthenticated)
        {
            var userIdClaim = user.FindFirst(c => c.Type == "sub");
            userId = userIdClaim?.Value;
        }

        await LoadProfileData();
    }

csharp     protected override async Task OnParametersSetAsync()
    {
        var authState = await AuthenticationStateProvider.GetAuthenticationStateAsync();
        var user = authState.User;

        if (string.IsNullOrEmpty(userId) && user.Identity.IsAuthenticated)
        {
            var userIdClaim = user.FindFirst(c => c.Type == "sub");
            userId = userIdClaim?.Value;
        }

        await LoadProfileData();
    }

i use blazor wasm and web api

4 replies

CC#

•Created by IcyIme on 7/14/2024 in #help

✅ asp.net web api connection refused

1 replies

CC#

•Created by IcyIme on 7/7/2024 in #help

✅ A second operation was started on this context instance before a previous operation completed.

i have two layoust one for mobile and second for pc and when i use mobile layout it throws me this error

System.InvalidOperationException: A second operation was started on this context instance before a previous operation completed. This is usually caused by different threads concurrently using the same instance of DbContext. For more information on how to avoid threading issues with DbContext, see https://go.microsoft.com/fwlink/?linkid=2097913.
   at Microsoft.EntityFrameworkCore.Infrastructure.Internal.ConcurrencyDetector.EnterCriticalSection()
   at Microsoft.EntityFrameworkCore.Query.Internal.SingleQueryingEnumerable`1.Enumerator.MoveNext()
   at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
   at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
   at GradeProject.Components.Pages.ProfilePage.GetLeaderboardPositionAsync(Int32 score) in c:\Users\peter\Desktop\Grade\GradeProject\GradeProject\Components\Pages\ProfilePage.razor:line 143
   at GradeProject.Components.Pages.ProfilePage.OnInitializedAsync() in c:\Users\peter\Desktop\Grade\GradeProject\GradeProject\Components\Pages\ProfilePage.razor:line 135
   at Microsoft.AspNetCore.Components.ComponentBase.RunInitAndSetParametersAsync()

System.InvalidOperationException: A second operation was started on this context instance before a previous operation completed. This is usually caused by different threads concurrently using the same instance of DbContext. For more information on how to avoid threading issues with DbContext, see https://go.microsoft.com/fwlink/?linkid=2097913.
   at Microsoft.EntityFrameworkCore.Infrastructure.Internal.ConcurrencyDetector.EnterCriticalSection()
   at Microsoft.EntityFrameworkCore.Query.Internal.SingleQueryingEnumerable`1.Enumerator.MoveNext()
   at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
   at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
   at GradeProject.Components.Pages.ProfilePage.GetLeaderboardPositionAsync(Int32 score) in c:\Users\peter\Desktop\Grade\GradeProject\GradeProject\Components\Pages\ProfilePage.razor:line 143
   at GradeProject.Components.Pages.ProfilePage.OnInitializedAsync() in c:\Users\peter\Desktop\Grade\GradeProject\GradeProject\Components\Pages\ProfilePage.razor:line 135
   at Microsoft.AspNetCore.Components.ComponentBase.RunInitAndSetParametersAsync()

csharp @using GradeProject.Components.Account.Shared

<MediaQueryList>
    <ViewTransitionRouter AppAssembly="typeof(Program).Assembly">
        <Found Context="routeData">
            <AuthorizeRouteView RouteData="routeData" DefaultLayout="@(isMobile ? typeof(Layout.MobileLayout) : typeof(Layout.MainLayout))">
                <NotAuthorized>
                    <RedirectToLogin/>
                </NotAuthorized>
            </AuthorizeRouteView>
            <FocusOnNavigate RouteData="routeData" Selector="[autofocus]"/>
        </Found>
    </ViewTransitionRouter>
    <MediaQuery Media="(max-width: 600px)" @bind-Matches="isMobile" />
</MediaQueryList>

@code {
    private bool isMobile;
}

csharp @using GradeProject.Components.Account.Shared

<MediaQueryList>
    <ViewTransitionRouter AppAssembly="typeof(Program).Assembly">
        <Found Context="routeData">
            <AuthorizeRouteView RouteData="routeData" DefaultLayout="@(isMobile ? typeof(Layout.MobileLayout) : typeof(Layout.MainLayout))">
                <NotAuthorized>
                    <RedirectToLogin/>
                </NotAuthorized>
            </AuthorizeRouteView>
            <FocusOnNavigate RouteData="routeData" Selector="[autofocus]"/>
        </Found>
    </ViewTransitionRouter>
    <MediaQuery Media="(max-width: 600px)" @bind-Matches="isMobile" />
</MediaQueryList>

@code {
    private bool isMobile;
}

5 replies

CC#

•Created by IcyIme on 6/26/2024 in #help

i want to migrate db from sqlserver to supabase(postressql) but i have error with entitity framework

SELECT EXISTS (
    SELECT 1 FROM pg_catalog.pg_class c
    JOIN pg_catalog.pg_namespace n ON n.oid=c.relnamespace
    WHERE n.nspname='public' AND
          c.relname='__EFMigrationsHistory'
)
Npgsql.NpgsqlException (0x80004005): Exception while reading from stream
 ---> System.TimeoutException: Timeout during reading attempt
   at Npgsql.Internal.NpgsqlReadBuffer.<Ensure>g__EnsureLong|55_0(NpgsqlReadBuffer buffer, Int32 count, Boolean async, Boolean readingNotifications)
   at System.Runtime.CompilerServices.PoolingAsyncValueTaskMethodBuilder`1.StateMachineBox`1.System.Threading.Tasks.Sources.IValueTaskSource.GetResult(Int16 token)
   at Npgsql.Internal.NpgsqlConnector.ReadMessageLong(Boolean async, DataRowLoadingMode dataRowLoadingMode, Boolean readingNotifications, Boolean isReadingPrependedMessage)
   at System.Runtime.CompilerServices.PoolingAsyncValueTaskMethodBuilder`1.StateMachineBox`1.System.Threading.Tasks.Sources.IValueTaskSource<TResult>.GetResult(Int16 token)
   at Npgsql.NpgsqlDataReader.NextResult(Boolean async, Boolean isConsuming, CancellationToken cancellationToken)
   at Npgsql.NpgsqlDataReader.NextResult(Boolean async, Boolean isConsuming, CancellationToken cancellationToken)
   at Npgsql.NpgsqlDataReader.NextResult()

Exception while reading from stream

SELECT EXISTS (
    SELECT 1 FROM pg_catalog.pg_class c
    JOIN pg_catalog.pg_namespace n ON n.oid=c.relnamespace
    WHERE n.nspname='public' AND
          c.relname='__EFMigrationsHistory'
)
Npgsql.NpgsqlException (0x80004005): Exception while reading from stream
 ---> System.TimeoutException: Timeout during reading attempt
   at Npgsql.Internal.NpgsqlReadBuffer.<Ensure>g__EnsureLong|55_0(NpgsqlReadBuffer buffer, Int32 count, Boolean async, Boolean readingNotifications)
   at System.Runtime.CompilerServices.PoolingAsyncValueTaskMethodBuilder`1.StateMachineBox`1.System.Threading.Tasks.Sources.IValueTaskSource.GetResult(Int16 token)
   at Npgsql.Internal.NpgsqlConnector.ReadMessageLong(Boolean async, DataRowLoadingMode dataRowLoadingMode, Boolean readingNotifications, Boolean isReadingPrependedMessage)
   at System.Runtime.CompilerServices.PoolingAsyncValueTaskMethodBuilder`1.StateMachineBox`1.System.Threading.Tasks.Sources.IValueTaskSource<TResult>.GetResult(Int16 token)
   at Npgsql.NpgsqlDataReader.NextResult(Boolean async, Boolean isConsuming, CancellationToken cancellationToken)
   at Npgsql.NpgsqlDataReader.NextResult(Boolean async, Boolean isConsuming, CancellationToken cancellationToken)
   at Npgsql.NpgsqlDataReader.NextResult()

Exception while reading from stream

3 replies

CC#

•Created by IcyIme on 6/23/2024 in #help

i migrating from sqlserver to mongo db but in login the page throeing an errror ExpressionNotSupport

16 replies

CC#

•Created by IcyIme on 3/23/2024 in #help

I want to make a dynamic compiler of c# code and with that have a console on the web page, using thi

I want to make a dynamic compiler of c# code and with that have a console on the web page, using this it will be possible to interact with the code

14 replies

CC#

•Created by IcyIme on 1/25/2024 in #help

i have problem with ef core in rider

/usr/lib/dotnet/dotnet ef database update --project TeamManager/TeamManager.csproj --startup-project TeamManager/TeamManager.csproj --context TeamManager.Data.ApplicationDbContext --configuration Debug 20240124212353_azure
Could not execute because the specified command or file was not found.
Possible reasons for this include:
  * You misspelled a built-in dotnet command.
  * You intended to execute a .NET program, but dotnet-ef does not exist.
  * You intended to run a global tool, but a dotnet-prefixed executable with this name could not be found on the PATH.

/usr/lib/dotnet/dotnet ef database update --project TeamManager/TeamManager.csproj --startup-project TeamManager/TeamManager.csproj --context TeamManager.Data.ApplicationDbContext --configuration Debug 20240124212353_azure
Could not execute because the specified command or file was not found.
Possible reasons for this include:
  * You misspelled a built-in dotnet command.
  * You intended to execute a .NET program, but dotnet-ef does not exist.
  * You intended to run a global tool, but a dotnet-prefixed executable with this name could not be found on the PATH.

4 replies

CC#

•Created by IcyIme on 1/10/2024 in #help

blazor implementing 404 page

blazor web app .net 8 not triggering <NotFound> tag how to fix it ?

@using BlazorApp33.Components.Account.Shared
<Router AppAssembly="@typeof(Program).Assembly">
    <Found Context="routeData">
        <AuthorizeRouteView RouteData="@routeData" DefaultLayout="@typeof(Layout.MainLayout)">
            <NotAuthorized>
                <RedirectToLogin />
            </NotAuthorized>
        </AuthorizeRouteView>
        <FocusOnNavigate RouteData="@routeData" Selector="h1" />
    </Found>
    <NotFound>
        <h1>404 Not Found</h1>
    </NotFound>
</Router>

@using BlazorApp33.Components.Account.Shared
<Router AppAssembly="@typeof(Program).Assembly">
    <Found Context="routeData">
        <AuthorizeRouteView RouteData="@routeData" DefaultLayout="@typeof(Layout.MainLayout)">
            <NotAuthorized>
                <RedirectToLogin />
            </NotAuthorized>
        </AuthorizeRouteView>
        <FocusOnNavigate RouteData="@routeData" Selector="h1" />
    </Found>
    <NotFound>
        <h1>404 Not Found</h1>
    </NotFound>
</Router>

3 replies

CC#

•Created by IcyIme on 1/4/2024 in #help

Blazor roles

how to make role based auth in blazor server I've been trying to do it for 2 days and I didn't get anywhere, tutorials didn't help either chatgpt

2 replies

CC#

•Created by IcyIme on 1/1/2024 in #help

problem with entityframework migration

error: An error occurred while accessing the Microsoft.Extensions.Hosting services. Continuing without the application service provider. Error: Failed to load configuration from file 'C:\Users\peter\source\repos\BlazingBlog\BlazingBlog\appsettings.json'. Unable to create a 'DbContext' of type ''. The exception 'Unable to resolve service for type 'Microsoft.EntityFrameworkCore.DbContextOptions`1[BlazingBlog.Data.BlogContext]' while attempting to activate 'BlazingBlog.Data.BlogContext'.' was thrown while attempting to create an instance. For the different patterns supported at design time, see https://go.microsoft.com/fwlink/?linkid=851728 code:

using BlazingBlog.Data.Entities;
using Microsoft.EntityFrameworkCore;

namespace BlazingBlog.Data
{
    public class BlogContext : DbContext
    {
        public BlogContext(DbContextOptions<BlogContext> options) : base(options)
        {
            
        }

        public DbSet<Category> Categories { get; set; }
        public DbSet<User> Users { get; set; }
        public DbSet<BlogPost> BlogPosts { get; set; }

        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
        {
            base.OnConfiguring(optionsBuilder);
#if DEBUG
            optionsBuilder.LogTo(Console.WriteLine);
#endif
        }

        protected override void OnModelCreating(ModelBuilder modelBuilder)
        {
            base.OnModelCreating(modelBuilder);

            modelBuilder.Entity<User>()
                .HasData(
                    new User
                    {
                        Id = 1,
                        Email = "[email protected]",
                        FirstName = "Peter",
                        LastName = "Odak",
                        Salt = "dasdasdasd",
                        Hash = "dsalkdjasklfjdsalkjfdsakljfalskjdas"
                    }
                    );
        }
    }
}

using BlazingBlog.Data.Entities;
using Microsoft.EntityFrameworkCore;

namespace BlazingBlog.Data
{
    public class BlogContext : DbContext
    {
        public BlogContext(DbContextOptions<BlogContext> options) : base(options)
        {
            
        }

        public DbSet<Category> Categories { get; set; }
        public DbSet<User> Users { get; set; }
        public DbSet<BlogPost> BlogPosts { get; set; }

        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
        {
            base.OnConfiguring(optionsBuilder);
#if DEBUG
            optionsBuilder.LogTo(Console.WriteLine);
#endif
        }

        protected override void OnModelCreating(ModelBuilder modelBuilder)
        {
            base.OnModelCreating(modelBuilder);

            modelBuilder.Entity<User>()
                .HasData(
                    new User
                    {
                        Id = 1,
                        Email = "[email protected]",
                        FirstName = "Peter",
                        LastName = "Odak",
                        Salt = "dasdasdasd",
                        Hash = "dsalkdjasklfjdsalkjfdsakljfalskjdas"
                    }
                    );
        }
    }
}

4 replies

CC#

•Created by IcyIme on 10/22/2023 in #help

❔ what learn first as beginerr blazor or asp.net

i want to go web dev route with c# and i am confused what is better learn first asp.net or blazor

17 replies

CC#

•Created by IcyIme on 8/10/2023 in #help

❔ asp.net core with angular or blazor which pick?

i wonder what is better to start new projects... asp.net with angular or asp.net with blazor

33 replies

CC#

•Created by IcyIme on 8/9/2023 in #help

next learn step is kinda confusing

I'm choosing between two frameworks, asp.net or .net maui, and I don't know what's better than learning... I thought about asp.net, but the learn path is quite confusing...

33 replies

CC#

•Created by IcyIme on 7/17/2023 in #help

❔ problem with understanding delegates and generics

I have a problem with understanding delegates and generics and I'm already spending a lot of time on it and I don't understand where and in what situations to use it and why it's used and what it's good for... I went through several sources and none of them helped, thanks in advance for your help and i forgot interfaces

65 replies

CC#

•Created by IcyIme on 3/16/2023 in #help

❔ BEST LEARNING PATH FOR ASP.NET

I am confused about asp.net and i do not know where to start with it.

8 replies

Gaming

Programming