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Does ASP.NET Core have regular pelpers?

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jules last edited by

I'm learning ASP.NET Core and I can't understand the old ASP. Do you still have pelpers Razor? Intellisence, when I inject @helper, it doesn't light at all.
In 4.6 versions, I created a folder of App_Code and made cshtml a file with choppers. @helper... after any bush, those choppers could use. What about this at ASP.NET Core?
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baileigh last edited by

Directive @helper She was. https://github.com/aspnet/Razor/pull/323 Razor. Instead, it would have to be either partial or partial. https://docs.asp.net/en/latest/mvc/views/view-components.html ♪
_{Many developers are dissatisfied with this fact, so maybe the hillpers will return in the future.}
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How to capture multiple exceptions with C# switch?
Software Programming • c sharp exc languageeption switc languageh • • gionna

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switch does not serve to capture exception, catch That'll do.If you have an action for each captured exception then just use several catches. They work analogously to switch and will run the block from which exception was released.If the following exceptions were more general than the previous then more than one catch can be executed since you can still have what to do in a wider context, the opposite does not work, since if you first treat the most general the most specific will be treated together.You can treat an exception among many too (only one is executed) if they have no direct relation, for example:} catch (SenhaNaoNumericaException) { WriteLine("A senha não é numérica"); } catch (SenhaMuitoPequenaException) { WriteLine("Senha não numérica."); } catch (SenhaInicioAbaixoDe4Exception) { WriteLine("Não pode começar com número abaixo de 4."); } catch (SenhaSemCaractereEspecialException) { WriteLine("Não foi encontrado nenhum caractere especial"); } If you want to capture a more general exception and differently treat certain specificities of the exception then you need to use the somewhat different mechanism. I'll play one https://stackoverflow.com/a/31542237/221800 using automatic translator :D:If you can update your app to C# 6, you are in luck. This version C# implemented exception filters. Then you can write this:catch (Exception ex) when (ex is CommunicationException || ex is SystemException) { //lidar com isso } Some people think that this code is the same as thatcatch (Exception ex) { if (ex is CommunicationException || ex is SystemException) { //lidar com isso } throw; } But it's not. In fact, this is the only new C# 6 feature that is not possible to emulate in previous versions. First, a re-release means more https://pt.stackoverflow.com/q/198252/101 than skip the catch. Secondly, it is not semantically equivalent. The new feature preserves the stack intact when you are debugging your code. Without this feature, the dumping memory is less useful or even useless. http://www.volatileread.com/Wiki/Index?id=1087 .Another example:catch (Exception ex) when (ex is IOException || ex is UnauthorizedAccessException || ex is NotSupportedException || ex is SecurityException || ex is DirectoryNotFoundException || ex is PathTooLongException) { WriteLine("deu erro"); } https://github.com/maniero/SOpt/blob/master/CSharp/Exception/MultipleCatches.cs .So it falls on the same catch in all these exceptions but not in others. Ouras conditions can be used, need not be only exceptions, is as if it were a if even, but it's something better.Read also: https://pt.stackoverflow.com/q/30124/101 . And still: https://pt.stackoverflow.com/q/21933/101 . In general people use exceptions mistakenly, I suggest giving a good search here before using them. You can start https://pt.stackoverflow.com/search?tab=votes&q=user%3A101%20%5Bexce%C3%A7%C3%A3o%5D .
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Asp classico with Asp .net
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Although the two programming languages have the same nomenclature:ASP (extension: asp)ASP.NET (extension: aspx)They are totally different languages in sessions and methods, to try to sane this problem try to terrify the bridge between one language and another. When I want to share data from one *.asp page to another *.php, I make the first page generate a file XML XML XML which any other programming language can recover the data and treat and/or display.
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Problem solved! UpdateLayout(); GC.Collect(); Special thanks to Tykac'u.
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Error trying to Edit PK and UK in ASP .NET Core
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The error is occurring because you are trying to give update by creating a new record, with the PK of an existing one.Ex, here you are creating a new UnidadeDtoDomain.DTO. Unit unidadeDTO = new Domain.DTO. Unit();and soon after is passing to give UPDATE, in a new record:_unitRepository. Update(unidadeDTO);Being the right way to update your unidadeDTO, it should first be to bring the existing data from the +- database as follows:var unidadeDTO = _unidadeRepository.GetUnidadeById(unidadeDto.IdUnidade); unidadeDTO.NomeUnidade = collection["nomeUnidade"]; unidadeDTO.EnderecoUnidade = enderecoDTO; unidadeDTO.ImagemUnidade = "/img/Recebido/Perfil/Unidade/" + nomeArquivo; and now yes pass to the UPDATE:_unitRepository. Update(unidadeDTO);
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There are several issues in your code that is not to be addressed here, but my suggestion is that you study .NET Core and the MVC (Model-View-Controller) software architecture standard and understand how each of them works.Do it like this:View (JS):function getValue() { var obj = { "email": 'teste@TesteViewModel.com' } var data = JSON.stringify(obj); $.ajax({ type: 'POST', contentType: 'application/json; charset=utf-8', dataType: 'json', url: '/Home/GetValue', cache: false, data: data, success: (e) => { console.log('success') }, error: (e) => { console.log('error') }, complete: (e) => { console.log('complete'); } }); } Controller:[HttpPost] public JsonResult GetValue([FromBody] TesteViewModel dados) { var teste = new TesteViewModel { Email = dados.Email }; return Json(teste); } Model (ViewModel):public class TesteViewModel { public string Email { get; set; } }
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How can I occupy a model several times on asp.net core?
Software Programming • net asp.net mvc asp.net asp.net mvc 5 asp.net c languageore • • amarantha

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You can add a class only for the login in fact you can see that by creating a new project you are given the option to create it with individual authentication accounts and ah uses the table class to register users and a class for the login something like that would remain: public class LoginViewModel { [Required] [Display(Name = "Correo")] public string Correo{ get; set; } [Required] [DataType(DataType.Password)] [Display(Name = "Contraseña")] public string Contrasena{ get; set; } } View in the line where you make use of the user model you change it by LoginViewModel@model WORK.Models.LoginViewModel@model TRABAJO.Models.LoginViewModel @{ ViewData["Title"] = "Login"; } <h2>Login</h2> <form class="form-horizontal" asp-controller="Home" asp-action="Login" method="post"> <div asp-validation-summary="ModelOnly" class="text-danger"></div> <div class="form-group"> <label asp-for="Correo" class="col-md-2 control-label"></label> <div class="col-md-10"> <input asp-for="Correo" class="form-control" /> <span asp-validation-for="Correo" class="text-danger"></span> </div> </div> <div class="form-group"> <label asp-for="Contrasena" class="col-md-2 control-label"></label> <div class="col-md-10"> <input asp-for="Contrasena" class="form-control" /> <span asp-validation-for="Contrasena" class="text-danger"></span> </div> </div> <div class="form-group"> <div class="col-md-offset-2 col-md-10"> <button type="submit" class="btn btn-success">Iniciar</button> </div> </div> </form>Controller change the received model you have usuario by which we believe InicioSesion That's how you compare it within the controller public ActionResult Login(LoginViewModel HomeSesion) [HttpPost] public ActionResult Login(LoginViewModel InicioSesion) { if(ModelState.IsValid) { var account = _context.Usuario.Where(u => u.Correo == InicioSesion.Correo && u.Contrasena == InicioSesion.Contrasena).FirstOrDefault(); if(account != null) { HttpContext.Session.SetString("Curp", account.Curp.ToString()); HttpContext.Session.SetString("Nombre", account.Nombre.ToString()); return RedirectToAction("Welcome"); } else { ModelState.AddModelError("", "El usuario o la contraseña son incorrectos."); } } return View(); } the class can add it to the model folder
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Implementation of Unit of work in Asp.Net core 1.0
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Each repository provides a unit of information: this may be one table or associated tables or another information container.Competences of the Unit Of Work : connect these repository in one logically linked container and contain those tubes that are in the abstract for all repositories. For example, at some point in time, we must preserve the changing Entities. Then u Unit of Work'a should be a method. Save() Here's a piece of code from my real program: public interface IUnitOfWork : IDisposable { IEventRepository Events { get; set; } Task<int> SaveAsync(); int Save(); } //Isolation from Concrete Info Container public interface IRepository<TEntity, TPrimaryType> where TPrimaryType : struct where TEntity : class { Task<TEntity> GetAsync(TPrimaryType id); Task<IEnumerable<TEntity>> GetAllAsync(); IEnumerable<TEntity> Find(Expression<Func<TEntity, bool>> predicate); Task<TEntity> SingleOrDefaultAsync(Expression<Func<TEntity, bool>> predicate); Task AddAsync(TEntity entity); Task AddRangeAsync(IEnumerable<TEntity> entities); void Remove(TEntity entity); void RemoveRange(IEnumerable<TEntity> entities); } public class Repository<TEntity, TPrimaryKey> : IRepository<TEntity, TPrimaryKey> where TPrimaryKey : struct where TEntity : class { protected readonly AccreditationDbContext Context; public Repository(AccreditationDbContext context) { Context = context; } /// <summary> /// Gets Item by id /// </summary> /// <param name="id"></param> /// <returns></returns> public async Task<TEntity> GetAsync(TPrimaryKey id) { return await Context.Set<TEntity>().FindAsync(id); } /// <summary> /// Get All Data as List /// </summary> /// <returns></returns> public async Task<IEnumerable<TEntity>> GetAllAsync() { return await Context.Set<TEntity>().ToListAsync(); } /// <summary> /// Finds data using Expression tree predicate /// </summary> /// <param name="predicate"></param> /// <returns></returns> public IEnumerable<TEntity> Find(Expression<Func<TEntity, bool>> predicate) { return Context.Set<TEntity>().Where(predicate); } /// <summary> /// Gets first item matching predicate /// </summary> /// <param name="predicate"></param> /// <returns></returns> public async Task<TEntity> SingleOrDefaultAsync(Expression<Func<TEntity, bool>> predicate) { return await Context.Set<TEntity>().SingleOrDefaultAsync(predicate); } /// <summary> /// Add data to Context /// </summary> /// <param name="entity"></param> public async Task AddAsync(TEntity entity) { await Context.Set<TEntity>().AddAsync(entity); } /// <summary> /// Add data range to Context /// </summary> /// <param name="entities"></param> public async Task AddRangeAsync(IEnumerable<TEntity> entities) { await Context.Set<TEntity>().AddRangeAsync(entities); } /// <summary> /// Remove data from Context /// </summary> /// <param name="entity"></param> public void Remove(TEntity entity) { Context.Set<TEntity>().Remove(entity); } /// <summary> /// Remove range of data from Context /// </summary> /// <param name="entities"></param> public void RemoveRange(IEnumerable<TEntity> entities) { Context.Set<TEntity>().RemoveRange(entities); } } public interface IEventRepository : IRepository<Event,int>,IDbDependency<Event> { //TODO: add Event methods } public class UnitOfWork : IUnitOfWork { private readonly AccreditationDbContext _context; public IEventRepository Events { get; set; } public UnitOfWork(AccreditationDbContext context) { _context = context; Events = new EventRepository(_context); } public void Dispose() { _context.Dispose(); } public async Task<int> SaveAsync() { return await _context.SaveChangesAsync(); } public int Save() { return _context.SaveChanges(); } }
How to access an Asp.Net Core App Api controller?
Software Programming • c sharp asp.net asp.net c languageore asp.net web api • • morde

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Remove from the controller the attribute [Route("api/[controller]")]Place the route on the method [Route("api/UploadFileMethod")]The url remains for example something like this: http://localhost:4200/api/UploadFileMethodCode:namespace ChilePlacer.Controllers { [ApiController] public class ExternalController : ControllerBase { [HttpPost] [AllowAnonymous] [Route("api/UploadFileMethod")] public string UploadFileMethod(IFormFile file) { if (file != null) { try { var respuesta = new RespuestaModel(); if (!file.FileName.ToUpperInvariant().Contains(".JPG") || file.FileName.ToUpperInvariant().Contains(".JPEG") || file.FileName.ToUpperInvariant().Contains(".BMP") || file.FileName.ToUpperInvariant().Contains(".PNG")) return "El archivo debe ser de tipo: ( .jpg .jpeg .bmp .png )"; string path = Path.Combine("Archivos", file.FileName); var stream = System.IO.File.Create(path); file.CopyTo(stream); stream.Dispose(); } catch (Exception ex) { return ex.ToString(); ; } } else { return "El valor no puede ser nulo"; } return "OK"; } } }
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Remediate audio with ASP.NET Core server in Flutter Annex
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There's a suspicion that the problem is the same, https://ru.stackoverflow.com/a/605311/178988 ♪File Gives data without positioning support, and he doesn't even build it. I recommend that we try streaming and add support Range♪
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502 error in updating asp.net core from 2.0 to 2.1
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Helped. https://github.com/aspnet/IISIntegration/issues/945 :Open the command line.Go to the bin catalogue of your project. Let's say the name of your "test" project.Start 'dotnet. Microsoft.Aspnetcore.all version 2.1.2 was not found♪Let's go. dotnet -info And you'll see the version of the set rank. In my case, it was 2.1.1. Then lower the Microsoft package.Aspnetcore.all to 2.1.1 and make it work. Alternatively, you can update your version of the puncture, but it's bigger than the frost :I had one of those:C:\...\src\WebApp\bin\Debug\netcoreapp2.1>dotnet .\Company.ProjName.WebApp.dll It was not possible to find any compatible framework version The specified framework 'Microsoft.AspNetCore.All', version '2.1.3' was not found. - Check application dependencies and target a framework version installed at: C:\Program Files\dotnet\ - Installing .NET Core prerequisites might help resolve this problem: http://go.microsoft.com/fwlink/?LinkID=798306&clcid=0x409 - The .NET Core framework and SDK can be installed from: https://aka.ms/dotnet-download - The following versions are installed: 2.1.2 at [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.All] Turned back from 2.1.3. to 2.1.2, everything worked.Strange, the studio is the last, with all the updates.
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One-time (synchronous) three ScrollView
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DEAD! _ScrollViewLeft.ScrollChange += _ScrollViewLeft_ScrollChange; _ScrollViewMedium.ScrollChange += _ScrollViewMedium_ScrollChange; _ScrollViewRight.ScrollChange += _ScrollViewRight_ScrollChange; } private void _ScrollViewLeft_ScrollChange(object sender, ScrollChangeEventArgs e) { int ScrollX = _ScrollViewLeft.ScrollX; int ScrollY = _ScrollViewLeft.ScrollY; _ScrollViewMedium.ScrollTo(ScrollX, ScrollY); _ScrollViewRight.ScrollTo(ScrollX, ScrollY); } private void _ScrollViewMedium_ScrollChange(object sender, ScrollChangeEventArgs e) { int ScrollX = _ScrollViewMedium.ScrollX; int ScrollY = _ScrollViewMedium.ScrollY; _ScrollViewLeft.ScrollTo(ScrollX, ScrollY); _ScrollViewRight.ScrollTo(ScrollX, ScrollY); } private void _ScrollViewRight_ScrollChange(object sender, ScrollChangeEventArgs e) { int ScrollX = _ScrollViewRight.ScrollX; int ScrollY = _ScrollViewRight.ScrollY; _ScrollViewLeft.ScrollTo(ScrollX, ScrollY); _ScrollViewMedium.ScrollTo(ScrollX, ScrollY); }
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How do you test the Windows 8.1 applications?
Software Programming • c sharp visual studio 2015 uwp • • Cleofas

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UWP applications do not work in the early versions of the LO. I mean, to put the app on, you have to put the wine in 10. Why don't 8.1 be updated by 10? Objective reasons not to do so in my opinion.
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What is a better practice - RSA Encryption vs Windows authentication
Security, Penetration Testing • encryption asp.net iis • • juvenalb

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There isn't really enough information here to answer that. If you have a secure means of key storage (such as a good TPM (Trusted Platform Module) or an HSM (Hardware Security Module) that can store keys in hardware, then having an encrypted config file would be more secure than having the authentication in the clear. That said, the information necessary to break either system is present on the computer since IIS can access it. If an attacker has sufficient control of the system, neither system will help you that much since they can masquerade as IIS and submit the decryption. Honestly, I think the Windows Authentication setup properly would be ok, but I would do it by having the site run as a particular user. Then only give that user permission to connect to the DB. For an attacker to breach the system, they would need to gain access to an account that has access to the credentials of the service account (at which point they would have control of the application either way) and if they have control of the application, getting the key isn't going to be that hard. I don't know of any more elaborate ways to add security to the setup, though someone else may have a better idea than I do.
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javascript problems in applications ASP.Net MVC - Minification failed
Software Programming • c sharp asp.net mvc visual studio • • amarantha

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You are miniifying Javascript files with StyleBundle. Use ScriptBundle for files Javascript
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How to communicate API between each other with JWT(asp.net core 2.2)
Software Programming • c sharp rest asp.net core jwt • • Saumya

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You, with JWT, are trying to solve task that he doesn't fit. JWT is intended to transfer the context of implementation of the annex (e.g. security context) between independent services. The concept of execution is the nature of the environment in which a request exists at this time. Usually it's a vocabulary with, for example, the following:RS Tenantor IdentifierUser IDof the userThe JWT information is analog to the variable environment in the operating system.For example, you have the following configuration:Annex A: client (web or mobile)Annex B: Services 1 (web-api)Annex B: Services 2 (web-api)Token receives Annex A and goes with him to Annex B and B. If you have a Token transmits Annex B when approaching Annex B, this may indicate wrong architectural solutions - information specific to a specific request shall not enter JWT.Two independent web-based services usually use either direct challenges through service detection technology (service discovery) or an intermediate link in the form of a broker.

Does ASP.NET Core have regular pelpers?

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