public static bool HasValues<T>(this ICollection<T> collection)
{
    if (collection == null)
    {
        return false;
    }
    if (collection.Count == 0)
    {
        return false;
    }
    return true;
}

string date = user.RegistrationDate.ToShortDateString().ToString();

public void Handle(SomethingCreatedEvent e)
{
    if (e.ActCode == "SOME_VALUE")
    {
        return;
    }
    else
    {
        // insert real function body here
    }
}

/// <summary>
/// Method that checks if an object is not null
/// </summary>
/// <param name="obj">extend type of <see cref="Object"/></param>
/// <returns>true if object is not null</returns>
public static bool NotNull(this Object obj)
{
    return obj != null;
}


[TestMethod]
public void Test_Something()
{
    // test
    var result = DoSomething();
    
    // assert
    Assert.IsTrue(result.NotNull());
}

using UnityEngine;
using UnityEngine.UI;
using UnityEngine.SceneManagement;

public class StoryOfMyLife : MonoBehaviour
{
    void OnDestory()
    {
        Debug.Log("  Directed by  ");
        Debug.Log("ROBERT B. WEIDE");
    }
}

private void reset_kolejnosc()
{
	this.kolejnosc_s[0] = 1;
	this.kolejnosc_s[1] = 2;
	this.kolejnosc_s[2] = 3;
	this.kolejnosc_s[3] = 4;
	this.kolejnosc_s[4] = 5;
	this.kolejnosc_s[5] = 6;
	this.kolejnosc_s[6] = 7;
	this.kolejnosc_s[7] = 8;
	this.kolejnosc_s[8] = 9;
	this.kolejnosc_s[9] = 10;
}

public event EventHandler<Cles_graph_doivent_etre_redessines> les_graph_doivent_etre_redessines;
public void remove_event()
{
    if (this.les_graph_doivent_etre_redessines != null)
    {
        foreach (EventHandler<Cles_graph_doivent_etre_redessines> F_les_graph_doivent_etre_redessines in this.les_graph_doivent_etre_redessines.GetInvocationList())
        {
            this.les_graph_doivent_etre_redessines -= F_les_graph_doivent_etre_redessines;
        }
    }
}

i++;
i++;
i++;
i++;
Console.WriteLine(i);

/// <summary> 
/// Desctop constructor
/// </summary>
...

string month = DateTime.Today.Month.ToString();
if (DateTime.Today.Month < 10)
{
    month = "0" + month;
}
string day = DateTime.Today.Day.ToString();
if (DateTime.Today.Day < 10)
{
    day = "0" + day;
}

string dateCorrect = String.Format("{0}.{1}.{2}", DateTime.Today.Year, month, day);

string dateDue = "";
if (transferFields.DueDate.SelectedDate.HasValue)
{
    var dateDuearr = transferFields.DueDate.Value.Split(' ')[0].Split('.');
    dateDue = dateDuearr[2] + '.' + dateDuearr[1] + '.' + dateDuearr[0];
}
else {
    dateDue = dateCorrect;
}

    public static class DecimalHelpers
    {
        /// <summary>
        /// Format a decimal XX.XX to XX,XX%.
        /// </summary>
        /// <param name="value"></param>
        /// <returns></returns>
        public static string FormatToStringPercentageValue(this decimal value)
        {
            return value.ToString().Replace(".", ",").FormatToPercentageValue();
        }
    }
    
    public static class StringHelpers
    {
        /// <summary>
        /// Add % at the end of the string.
        /// </summary>
        /// <param name="value"></param>
        /// <returns></returns>
        public static string FormatToPercentageValue(this string value)
        {
            return string.Concat(value, "%");
        }
    }

var doc = (Parent as Doc);
doc.Name = (doc != null) ? "" : doc.Name

if ((bool)greenButton.IsChecked)
{
    CurrentColor = Color.FromArgb(0xFF, 0x00, 0xCC, 0x00);
}
else if ((bool)greyButton.IsChecked)
{
    CurrentColor = Color.FromArgb(0xFF, 0x79, 0x79, 0x79);
}

foreach (var item in ItemsList.Items)
{
    if ((grid.Background as SolidColorBrush).Color == CurrentColor)
    {
        selectedItems.Add(item);
    }
}

[HttpPost]
[Route("validaPrepacks")]
public IHttpActionResult ValidaPrepacks(ValidaPrepackVO validacion)
{
    try
    {
        return Ok();
    }
    catch (Exception e)
    {
        return Ok(e.Message);
    }

}

try {
    User.ClaimToken();
} 
catch {
    User.ClaimToken();
}