c.Singularize

@inject HttpClient httpClient

@if (States != null)
{

<select id="SearchStateId" name="stateId" @onchange="DoStuff" class="form-control1">
    <option>@InitialText</option>
    @foreach (var state in States)
    {
        <option value="@state.Name">@state.Name</option>
    }
</select>
}


@code {
[Parameter] public string InitialText { get; set; } = "Select State";
private KeyValue[] States;
private string selectedString { get; set; }
protected override async Task OnInitializedAsync()
{
    States = await httpClient.GetJsonAsync<KeyValue[]>("/sample-data/State.json");
}

private void DoStuff(ChangeEventArgs e)
{
    selectedString = e.Value.ToString();
    Console.WriteLine("It is definitely: " + selectedString);
}

public class KeyValue
{
    public int Id { get; set; }

    public string Name { get; set; }
}
}

// Parsing json as a stream
await using FileStream file = File.OpenRead ( "data.json" ) ;
var options = new JsonSerializerOptions {
    PropertyNaming Policy = JsonNaming Policy.CamelCase
} ;
IAsyncEnumerable < JsonNode ? > enumerablesonSerializer
    .DeserializeAsyncEnumerable < JsonNode > ( file , options ) ;
await foreach ( JsonNode ? obj in enumerable ) {
    var id = obj ? [ "id" ] ?.GetValue <int> () ;
    // do things
}

using Microsoft.Extensions.Caching.Memory;

if (_memoryCache.TryGetValue("IME MEMORY CACHE", out var STA CUVAMO))
   {
       return STA CUVAMO;
   }
   else
   {
       STA CUVAMO = await _Provider.GetAsync();
     //VREME KOLIO CUVAMO TRECI PARAMETAR
       _memoryCache.Set("IME MEMORY CACHE", STA CUVAMO, TimeSpan.FromHours(8));
        return STA CUVAMO;
     }


// U PROGRAM CS
builder.Services.AddMemoryCache();

using Microsoft.AspNetCore.Hosting;

public async Task<NESTO?> GetKiaDealerInfoAsync()
        {
            string location = _webHostEnvironment.WebRootPath;
            string fileName = "PUTANJA";
            string filePath = Path.Combine(location, fileName);

            using (StreamReader streamReader = new(filePath))
            {
                string json = await streamReader.ReadToEndAsync();
                return JsonSerializer.Deserialize<NESTO>(json);
            }
        }

# connect to the remote server
# -p -> Uses passive mode for data transfers, allowing you to use FTP despite a firewall that might prevent it.
# -i -> Turns off interactive prompting during multiple file transfers.
ftp -p -i <remote adress>
  
# set local folder where the remote files are going to be downloaded
lcd <folder path>
  
# download the file
get <file path>
  
# download directory
mget <folder path>
  
# download files with extension
mget *.rtf # list other extensions... *.cnf *.lst 


# https://phoenixnap.com/kb/linux-ftp
# cd -> change current folder
# ls /or/ dir -> List the contents of a directory on the remote system.
# pwd -> current directory

# install the library
sudo apt update && sudo apt install libreoffice

# convert file 
soffice --headless --invisible --norestore --convert-to pdf <source rtf file> --outdir <output directory>
  
# convert folder (cd to the folder)
lowriter --headless --invisible --norestore --convert-to pdf *.<the extension we want to convert>

// FOREACH
public static bool ContainsDuplicates < T > ( this IEnumerable < T > enumerable )
{
    HashSet < T > knownElements = new ( ) ;
    foreach ( T element in enumerable )
   {
     if ( ! knownElements.Add ( element ) )
       {
         return true ;
       }
     
    }                              
    return false ;
}
//HashSet . Add returns false if the element is already present

//LINQ ANY
public static bool ContainsDuplicates < T > ( this IEnumerable < T > enumerable )
{ 
    HashSet < T > knownElements = new ( ) ;
    return enumerable.Any(element => !knownElements.Add(element));
}

//LINQ ALL
public static bool ContainsDuplicates < T > ( this IEnumerable < T > enumerable )
{ 
    HashSet < T > knownElements = new ( ) ;
    return !enumerable.All(knownElements.Add);
}


// primena
List < int > numbers = new ( ) { 1 , 2 , 3 , 3 , 4 , 5 } ;
  if ( numbers.ContainsDuplicates ( ) )
{  
    // Do something when there are duplicates
}

                                               
                                               

typeof(/*The Class*/).GetProperties().First(f => f.Name.Contains(/*name of property*/)).SetValue(/*object of the class*/, /*the value*/);

public ControlLocker Locker;
        private CatalogBM VM;

        public XF_NewEditForm()
        {
            InitializeComponent();

            this.Locker = new ControlLocker();
            this.Locker.AddControl(); // Заключване на контролите

            this.Locker.AddControl(isLock =>
            {
                if (isLock)
                {
                    btnSave.Lock();
                }
                else
                {
                    btnSave.Unlock();
                }
            });
        }

        public void PushModel(CatalogBM vm)
        {
            // XXX го заменяме с името на формата и после с ID на текущо отворения модел
            this.Text = $"XXX (XXXID: {vm.ID})";

            this.VM = vm;
            var bind = JBind.Create(vm);

            // Байндване на пропъртита с контроли
        }

        public CatalogBM GetModel()
        {
            return this.VM;
        }

 public void ShowFormXXXCatalog()
        {
            new FormEx<XF_CatalogMain>()
                .LoadForm(form =>
                {
                    form.Text = "ТЕКСТ НА ФОРМАТА";

                    // Слагаме го, ако искаме формата да се визуализира на цял екран
                    form.WindowState = FormWindowState.Maximized;

                    // Ако имаме търсене по дата, оставяме тези променливи и ги използваме после във (void refresh()) за да филтрираме

                    //form.layFromDate.Text = "От:";
                    //form.layToDate.Text = "До:";
                    //form.FromDate.DateTime = new DateTime(2000, 1, 1);
                    //form.ToDate.DateTime = DateTime.Now.Date;

                    // В противен случай премахваме датите
                    form.layFromDate.Visibility = DevExpress.XtraLayout.Utils.LayoutVisibility.Never;
                    form.layToDate.Visibility = DevExpress.XtraLayout.Utils.LayoutVisibility.Never;

                    // Заменяме XXXName с името по което ще търсим
                    var XXXName = form.AddTextEditToFilter("Наименование:");

                    // Премахване на бутоните за изтриване, преглед и експорт
                    form.gridViewOrders.Columns.Remove(form.col_Delete);
                    form.gridViewOrders.Columns.Remove(form.col_Preview);
                    form.btnExport.Visibility = DevExpress.XtraBars.BarItemVisibility.Never;

                    // Добавяме модела към грида и байндваме пропъртитата
                    var model = new CatalogCM();
                    form.AddColumnToGridView("ID", nameof(model.ID));
                    form.AddColumnToGridView("Описание", nameof(model.Description));

                    void refresh()
                    {
                        // Заменяме CatalogCM с истинския поко модел
                        var predicate = PredicateBuilder.True<CatalogCM>();
                        if (!string.IsNullOrWhiteSpace(XXXName.Text))
                        {
                            predicate = predicate.And(p => p.Description.ToLower().Contains(XXXName.Text.ToLower()));
                        }

                        // Разкоментираме ако имаме търсене по дата

                        //var fromDate = form.FromDate.DateTime;
                        //var toDate = form.ToDate.DateTime;
                        //predicate = predicate.And(x => x.From > fromDate && x.To <= toDate);

                        // Заменяме list с извикване на сървиса и взимане на реалните данни
                        var list = new List<CatalogCM>()
                        { new CatalogCM { ID = 1, Description = "Описание" },
                          new CatalogCM { ID = 2, Description = "Тест" }
                        }.AsQueryable().Where(predicate).ToList();

                        form.gridControlOrders.SetDataSource(list);
                    }
                    void clear()
                    {
                        XXXName.EditValue = string.Empty;
                    }

                    clear();
                    refresh();

                    form.btnClear.Click += (s, e) => clear();
                    form.btnSearch.Click += (s, e) => refresh();

                    form.AddBarButton("Нов XXX", JResources.Nov).ItemClick += (s, e) =>
                    {
                        if (this.ShowFormXXXNew() == DialogResult.Yes)
                        {
                            refresh();
                        }
                    };

                    form.gridViewOrders.RowCellClick += (s, e) =>
                    {
                        var row = form.gridViewOrders.GetRow(e.RowHandle) as CatalogCM;
                        if (row == null)
                        {
                            return;
                        }

                        if (e.Clicks == 2 || e.Column == form.col_Edit)
                        {
                            if (this.ShowFormXXXEdit(row.ID) == DialogResult.Yes)
                            {
                                refresh();
                            }
                        }
                    };
                })
                .ShowDialog();
        }

select case
           when pg_stat_file('SOME PATH', true) is null then false
           else true end as is_existing;

public void ShowForm/*something*/()
{
    new FormEx</*some XF*/>()
        .LoadForm(form =>
        {
            
        })
        .ShowDialog();
}

var jcore = this.UI.Resolve<JCoreClient>();

var resp = await jcore.GatewayAsync(/*some request*/);
if (resp.IsFailed)
{
    return;
}

/*some list*/.Select(c => { c.IsSelected = false; return c; }).ToList()