realivanjxツ Posts - Answer Overflow

realivanjxツ

•Created by realivanjxツ on 6/8/2023 in #help

❔ unsafe pointer operation

hi. im trying to rewrite code from other c# project to restore the sanity back. there is this one part that i dont quite understand:

byte[] arr = ...;
byte* buffer = arr;
var x = *buffer++; // actual line is much more complicated operations than this

byte[] arr = ...;
byte* buffer = arr;
var x = *buffer++; // actual line is much more complicated operations than this

what does the *buffer++ do? is it equal to buffer[index++] or buffer[index]++. thanks.

10 replies

CC#

•Created by realivanjxツ on 4/17/2023 in #help

❔ change timezone of aspnet docker container

how to change aspnet docker container's timezone? i am using this image mcr.microsoft.com/dotnet/aspnet:7.0.5-jammy. i already tried changing the TZ variable in my docker compose but it is still showing UTC. thanks

4 replies

CC#

•Created by realivanjxツ on 1/8/2023 in #help

✅ httpclient get download stream in blazor

i have this code to download a file from remote source (about 100 MB).

HttpRequestMessage requestMessage = new HttpRequestMessage(HttpMethod.Get, REMOTE_URL);
HttpResponseMessage responseMessage = await Http.SendAsync(
    requestMessage,
    HttpCompletionOption.ResponseHeadersRead);
using Stream remoteStream = await responseMessage.Content.ReadAsStreamAsync();
byte[] buffer = new byte[1024 * 1024];

while (CurrentProgress < MaxProgress)
{
    int read = await remoteStream.ReadAsync(
        buffer,
        0,
        buffer.Length);
    CurrentProgress += read;
    StateHasChanged();
}

HttpRequestMessage requestMessage = new HttpRequestMessage(HttpMethod.Get, REMOTE_URL);
HttpResponseMessage responseMessage = await Http.SendAsync(
    requestMessage,
    HttpCompletionOption.ResponseHeadersRead);
using Stream remoteStream = await responseMessage.Content.ReadAsStreamAsync();
byte[] buffer = new byte[1024 * 1024];

while (CurrentProgress < MaxProgress)
{
    int read = await remoteStream.ReadAsync(
        buffer,
        0,
        buffer.Length);
    CurrentProgress += read;
    StateHasChanged();
}

but it seems that that code above downloads the whole file first at line using Stream remoteStream so i cant really show any progress to the gui. is this a bug with the blazor's httpclient implementation because the code works fine on my wpf app. thanks

5 replies

CC#

•Created by realivanjxツ on 12/23/2022 in #help

❔ xunit field scope

lets say i have a class for unit testing below:

class Tests
{
  Dependency dep1;
  
  public Tests()
  {
    dep1 = new Dependency();
  }

  [Fact]
  public void test1()
  {
    Service s1 = new Service(dep1);
    ...
  }

  [Fact]
  public void test2()
  {
    Service s2 = new Service(dep1);
    ...
  }
}

class Tests
{
  Dependency dep1;
  
  public Tests()
  {
    dep1 = new Dependency();
  }

  [Fact]
  public void test1()
  {
    Service s1 = new Service(dep1);
    ...
  }

  [Fact]
  public void test2()
  {
    Service s2 = new Service(dep1);
    ...
  }
}

will s1 and s2 have the same dep1 instance or will they get different ones? thanks

5 replies

CC#

•Created by realivanjxツ on 12/22/2022 in #help

❔ Path.GetFullPath behavior on linux

17 replies

CC#

•Created by realivanjxツ on 12/20/2022 in #help

❔ StreamWriter weird output

3 replies

CC#

•Created by realivanjxツ on 11/10/2022 in #help

❔ system.text.json source generator in net standard

is it possible to use stj's source generator inside a net standard project (i dont mind 2.1)? according to this https://devblogs.microsoft.com/dotnet/try-the-new-system-text-json-source-generator/ source generator is supported in net standard project

3 replies

CC#

•Created by realivanjxツ on 11/10/2022 in #help

❔ yaml parser with native aot

is there any yaml parser library that supports native aot? i tried yamldotnet but it doesnt work with native aot because it uses system.reflection a lot. thanks

3 replies

CC#

•Created by realivanjxツ on 11/8/2022 in #help

how to use ReflectionAnalyzers

how to check for reflection warnings in my project (net standard 2.0)? it uses some other nuget packages. i want to include this net standard library to my native aot compiled app. thanks.

1 replies

CC#

•Created by realivanjxツ on 11/7/2022 in #help

inter process communication

what is the easiest and most performant way to communicate between 2 c# applications in the same machine? one of them is a wpf app and the other one is a command line app.

9 replies

CC#

•Created by realivanjxツ on 10/1/2022 in #help

rar library

what is the best library/nuget out there to list and extract the content of a rar file? it would be better if it is specifically for rar since i already able to work with zip files via the built in ZipArchive class. thanks.

33 replies

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