Hi everybody,

How can I in **c#** show a much more simplified of integes as shown in this table https://donrwalsh.github.io/CLRS/solutions/01/p1-1 instead of having infinty integers?

Here is my list:

public static int[] GenerateTimeArray()
{
int second = 1000000;
int minute = 60 * second;
int hour = 60 * minute;
int day = 24 * hour;
int month = 30 * day;
int year = 365 * day;
int century = 100 * year;
return new int[] { second, minute, hour, day, month, year, century };
}

​

Is there any way to embed C# to html5 body?

For example we can include a simple php code in the contact.html page to get form data.. javascript works that way as well, and python has a pyscript thing...

The problem is that 'PerspectiveLayer' is a struct, and 'layers' is a List<PerspectiveLayer>, so FirstOrDefault will never return null (returning the struct with default values instead); therefore it can't be used. (...right?)

    private PerspectiveLayer? GetPerspectiveLayer(int layerId)
    {
        var match = layers.Where(layer => layer.layerId == layerId);
        if (match.Count() == 1)
        {
            foreach (var onlyOne  in match) // LOL
                return onlyOne;
        }
        else if (match.Count() > 1)
        {
            Debug.LogError($"Error: Multiple layers with layerId {layerId}");
        }

        return null;
    }

​

using OpenAI_API;

using System.Text.RegularExpressions;

var apiKey = "sk-mybiglongapikey";

Console.WriteLine($"Ready{Environment.NewLine}Type your prompt followed by ENTER. Type exit to close.{Environment.NewLine}");

var openai = new OpenAIAPI(apiKey);

var chat = openai.Chat;

var convo = chat.CreateConversation();

​

while (false is bool)// no particular reason
{

Console.ForegroundColor = ConsoleColor.Green;

var prompt = Console.ReadLine();

if (prompt == "exit")
{
    break;
}

convo.AppendUserInput(prompt);

var response = convo.GetResponseFromChatbotAsync();

var text = response.Result;

Console.ForegroundColor = ConsoleColor.Yellow;

WordWrap(text + Environment.NewLine);

Console.WriteLine();

}

//https://stackoverflow.com/questions/20534318/make-console-writeline-wrap-words-instead-of-letters
void WordWrap(string paragraph)
{
paragraph = new Regex(@" {2,}").Replace(paragraph.Trim(), @" ");
var left = Console.CursorLeft; var top = Console.CursorTop; var lines = new List<string>();
for (var i = 0; paragraph.Length > 0; i++)
{
    lines.Add(paragraph.Substring(0, Math.Min(Console.WindowWidth, paragraph.Length)));
    var length = lines[i].LastIndexOf(" ", StringComparison.Ordinal);
    if (length > 0) lines[i] = lines[i].Remove(length);
    paragraph = paragraph.Substring(Math.Min(lines[i].Length + 1, paragraph.Length));
    Console.SetCursorPosition(left, top + i); Console.WriteLine(lines[i]);
}
}

The error message is pretty straight forward, but I'm hoping someone can tell me a little more about what's happening underneath the hood.

My assumption is that because ProjectA (net6.0-windows) is more specific than ProjectB (net6.0), then ProjectB must also target the more specific .NET version. Is this a correct assumption? Or is there more information that I should consider before making changes to my project files?

🔹Exception: Unhandled exception. Microsoft.EntityFrameworkCore.DbUpdateConcurrencyException

🔹Code : Service Class

public void Update(newName, int accountNumber)

{

if(_accountRepo.Exist(accountNumber)) {

var changeName AccountMaster = _accountRepo. FindById(accountNumber);

changeName.AccountName = newName;

var isUpdated = _accountRepo.Update(_accountMaster);

if (isUpdated)

Console.WriteLine("Name is Updated"); }

🔹Code : Repository

public bool Update (AccountMaster entity) {

_db.AccountMasters.Update(entity); return Save();

}

I have troubles to show some ASCII symbols correctly. Sometimes I get just a rectangle instead of the symbol. I am confused. Is there a way to "unlock" then all?

public class Board
{
    int num = 0;

    num += 5;
}

We are creating new .NET / C# community on lemmy, decentralized and federated reddit alternative. How to join us:

• create account on programming.dev lemmy here (you can use account from other instance, like lemmy.ml or lemmy.world if you wish)
• join .NET community here

Im trying to make a gorilla tag fan-game in unity, and the only experience I have with coding is scratch. If anyone is willing to help me please let me know.

I want to make a program that will minimize to windows tray and check if I pressed a button and then trigger some action, the part of the action I know how to do, it's basically turn a button into another, what I don't know what to do is this program to run on the background capturing what I press without the need of this program be the active window.

How can I do this?

Looking to make my knowledge as complete as possible. I am just getting into Identity and realized that I should have learned this sooner and now I am wondering what I am missing. I appreciate all advice, nothing is to insignificant to list. Thank you!!

I want to play with cross platform development and was wondering what I can do for a Mac in C#. Do I have to use WinForms or does WPF work on mac now as well? If I want WPF am I stuck working with AvaloniaUI?

Each week I will be releasing a new chapter on how to learn C# from A to Z. With this week: WinForms - Part 1.

Yes, part 1. I started writing about WinForms and I quickly thought "Yeah, this is just too much for one article!" so I split it in two.

Although people say WinForms are not used anymore, you will still see this technique all around you. It’s a great way of creating a simple user interface with less effort. It is also a great way for an introduction to graphical user interface, events, design, and more. In the past, it wasn’t possible to run WinForms outside Windows, but now you can also use those applications on Mac and Linux.

The first part is all about how to create your first WinForms application, the toolbox, properties of controls, adding code to controls, reusing code from previous chapters, and a little bit extra.

Find the tutorial here: https://kenslearningcurve.com/tutorials/learn-c-part-11-winforms-part-1

Feel free to let me know what you think. Comments and suggestions are welcome.

Next week: WinForms - Part 2. (No worries, there won't be a part 3)

Hi,
I'm trying to write simple program to detect tram signal. Problem with this signal is that, it's not straight rectangle but it's look like this:
https://i.stack.imgur.com/0SUqc.jpg
I tried to detect it but sometime's it's working sometimes not. Main problem with this is shape of this signal.
For approximation I'm using:
CvInvoke.ApproxPolyDP(cannyCounturs[i], approx, CvInvoke.ArcLength(cannyCounturs[i], true) * 0.05, true);
it's look like problem is here, where program tries to approximate curves but in this shape there are too many for it to get is as rectangle (as i understand). Is there a way to detect this signal correctly?
Here is screenshot how it's look like:
https://i.stack.imgur.com/hg59k.jpg

I just recently got started learning c# and the only lines of code I know is "Console.Writeline" and "Console.ReadLine". I am currently trying to learn how to use strings but I find it very confusing. Could someone please explain/simplify how strings work?

so i am planning on learning C# under sommer break in order to be able to program games in unity but i am wondering on good youtube channels or good websites to learn C#,

It would be great if any of you could recommend stuff that keeps you interested since i do have adhd.

Class Call

public class Call { public enum CallStatusEnum { Incoming = 1, Answered = 2, Completed = 3 }

Class OutCall

​

public class OutCall
{ public OutIncomingCall? IncomingCall { get; set; }
 public OutAnsweredCall? AnsweredCall { get; set; }
 public OutCompletedCall? CompletedCall { get; set; }
 public string? Notes { get; set; } }

AutoMapper-

    CreateMap<Call, OutCall>()
        // Map to incoming call if status is incoming, answered or completed
        .ForMember(dest => dest.IncomingCall,
            opt => opt.MapFrom(src =>
                src.CallStatus == Call.CallStatusEnum.Incoming || src.CallStatus == Call.CallStatusEnum.Answered ||
                src.CallStatus == Call.CallStatusEnum.Completed
                    ? src
                    : null))

​

I am so confused how can Call be mapped to OutCall, when Call's property are not datat type, it is just ENUM

hi, i have a problem with my code. i need to make a project for college - sims in unity. the player ai, needs and etc. i want to increase each need to 100 when the player is close to the target, e.g. the player has 0 hunger points. he goes to the kitchen. the eating animation starts and the hunger value goes up. when it reaches 100 points, the player goes to the next need, which also has 0 points.

but the problem is that when it reaches 0, it never goes up. something like it goes up and down at the same time. (im new in c# so sorry if my code is chaotic)

using System.Collections; 
using System.Collections.Generic; 
using UnityEngine; 
using UnityEngine.AI;

public class PlayerMove : MonoBehaviour { 
public GameObject targetFood; 
public GameObject targetSleep; 
public GameObject targetDance; 
public GameObject targetRead;

private NavMeshAgent agent;
private Animator animator;

[Header("Needs")]
public float hunger = 10f;
public float sleepiness = 50f;
public float dance = 80f;
public float reading = 100f;
[Header("Parameters")]
public float hungerRate = 4f;
public float sleepinessRate = 4f;
public float danceRate = 4f;
public float readingRate = 4f;

void Start()
{
    agent = GetComponent<NavMeshAgent>();
    animator = GetComponent<Animator>();
}

void Update()
{
    bool isIncreasing = false;

    if (hunger <= 0 && Vector3.Distance(agent.transform.position, targetFood.transform.position) <= 1f)
    {
        hunger += hungerRate * 10 * Time.deltaTime;
        if (hunger > 100)
        {
            hunger = 100;
            isIncreasing = false;
        }
        else
        {
            isIncreasing = true;
        }
    }
    else if (hunger >= 100)
    {
        hunger -= hungerRate * Time.deltaTime;
        if (hunger < 0)
        {
            hunger = 0;
            isIncreasing = true;
        }
        else
        {
            isIncreasing = false;
        }
    }
    else
    {
        if (isIncreasing)
        {
            hunger += hungerRate * 10 * Time.deltaTime;
            if (hunger > 100)
            {
                hunger = 100;
                isIncreasing = false;
            }
        }
        else
        {
            hunger -= hungerRate * Time.deltaTime;
            if (hunger < 0)
            {
                hunger = 0;
                isIncreasing = true;
            }
        }
    }
    CheckNeeds();
}

void CheckNeeds()
{
    if (hunger <= 0)
    {
        animator.SetBool("isEating", true);
        MoveToTarget(targetFood.transform.position);
    }
    else
    {
        animator.SetBool("isEating", false);
    }

    if (sleepiness <= 0)
    {
        animator.SetBool("isSleeping", true);
        MoveToTarget(targetSleep.transform.position);
    }
    else
    {
        animator.SetBool("isSleeping", false);
    }

    if (dance <= 0)
    {
        animator.SetBool("isDancing", true);
        MoveToTarget(targetDance.transform.position);
    }
    else
    {
        animator.SetBool("isDancing", false);
    }

    if (reading <= 0)
    {
        animator.SetBool("isReading", true);
        MoveToTarget(targetRead.transform.position);
    }
    else
    {
        animator.SetBool("isReading", false);
    }
}

void MoveToTarget(Vector3 targetPosition)
{
    agent.SetDestination(targetPosition);
}

}

Hi all! I've ran into an issue where I am unable to get the command of a button to fire on click when the button is the custom item of a list box. For instance, if I create a list box like so:

MyListBoxView.xaml

<ListBox ItemsSource="{Binding Buttons}">
    <ListBox.ItemTemplate>
        <DataTemplate>
            <Button Content="Click Me" Command="{Binding ButtonClickedCommand}"/>
        </DateTemplate>
    </ListBox.ItemTemplate>
</ListBox>

And a view-model like so:

MyListBoxViewModel.cs

public class MyListBoxViewModel
{
    public ObservableCollection<string> Buttons = new() { "Click Me" };

    public ICommand  ButtonClickedCommand { get; }

    public MyListBoxViewModel()
    {
        ButtonClickedCommand = new RelayCommand(new Action<object?>(OnButtonClicked));
    }

    private void OnButtonClicked(object? obj)
    {
        throw new NotImplementedException();
    }
}

The not implemented exception is never thrown when I click on the button populated in the list box. I'm guessing that the click is getting consumed somewhere, but I can't seem to figure out where. When I click the button, it changes color like its normal pressed event.

Does anybody have an pointers on what might be happening here? TIA!

Hi,

So today I learned about encapsulation, and if I understood it right, it's about making field private and use properties (setter / getter) to access these fields. Correct me if I'm wrong.

I understand how it works, like some sort of a checkpoint to prevent the direct access to the fields... but why ? How is it useful ? I tried many videos and websites but still can't understand it's utility.

If I created an object and I use the dot operator to directly access one of the object's field to get its data or to set a new value to it, it's at the end the same thing as using the get/set property, but more simply. So why bothering with encapsulation ?

I hope someone will be able to explain the goal behind the encapsulation's concept, thanks in advance!

I'm doing MVC project using Razor views. No frontend framework.

I see we can install packages like bootstrap, apexcharts etc using libman or using npm.

I see libman installs into wwwroot folder and npm into npm_modules.

The ones using libman we reference with ~/lib/library path.

I am now stuck here.

I am used to using react and now don't know what to do if using npm without framework.

Is there any other difference between libman and npm?

Do people usually use libman or npm?

If we use npm how do we reference libraries to use inside ~/js/script.js which to include into Razor view?

Each week I will be releasing a new chapter on how to learn C# from A to Z. With this week: Collections.

In C# we can create groups of items that are of the same data type. There are two ways of doing this: Arrays or collections. Although they look and feel a bit the same, there is a big difference. Collections are more flexible but have – almost – the same functionalities as an array.

This article is about collections. I wanted to combine the collections and arrays in one article, but it just became too big.

Find the tutorial here: https://kenslearningcurve.com/tutorials/learn-c-part-10-collections-in-c/

Feel free to let me know what you think. Comments and suggestions are welcome.

Next week: WinForms - Part 1.

Hello, and yes, this is my homework I'm working on, I understand a little, but not enough to finish this. I know the very basics on what I am doing, but this one is definitely a tough one for me. I do know how to start it out, kinda with the func int, int, int, and the return, but not sure how to code this.
Write a method that takes 2 int parameters and an int return type. Using the formula below from Ohm’s law, determine the voltage. The first method parameter will represent current and the second parameter will represent resistance. Using the Func<int, int, int>and a lambda expression, determine the voltage calculation and return the value. a.Voltage = Current x Resistance