christiannagel

string[] names = { "James", "Niki", "John", "Gerhard", "Jack" };
var q = names.Where(null);

foreach (var n in q)  // callstack position for exception
{
    Console.WriteLine(n);
}

christiannagel

public static void QuickSort<T>(T[] elements) where T : IComparable<T>
{
  void Sort(int start, int end)
  {
    int i = start, j = end;
    var pivot = elements[(start + end) / 2];

    while (i <= j)
    {
      while (elements[i].CompareTo(pivot) < 0) i++;

christiannagel

public static void WhenDoesItEnd()
{
  Console.WriteLine(nameof(WhenDoesItEnd));
  void InnerLoop(int ix)
  {
    Console.WriteLine(ix++);
    InnerLoop(ix);
  }
  InnerLoop(1);
}

christiannagel

static void AsynchronousPattern()
{
    WebRequest request = WebRequest.Create(url);
    IAsyncResult result = request.BeginGetResponse(ar =>
    {
        using (WebResponse response = request.EndGetResponse(ar))
        {
            Stream stream = response.GetResponseStream();
            var reader = new StreamReader(stream);

christiannagel

private static void AsynchronousPattern()
{
    WebRequest request = WebRequest.Create(url);
    IAsyncResult result = request.BeginGetResponse(ReadResponse, null);

    void ReadResponse(IAsyncResult ar)
    {
        using (WebResponse response = request.EndGetResponse(ar))
        {
            Stream stream = response.GetResponseStream();

christiannagel

public class ColumnNames
{
    public const string LastUpdated = nameof(LastUpdated);
    public const string IsDeleted = nameof(IsDeleted);
    public const string BookId = nameof(BookId);
}

christiannagel

public class CultureData
{
    public CultureInfo CultureInfo { get; set; }
    public IList<CultureData> SubCultures { get; set; }
    private double _numberSample = 9876543.21;
    public string NumberSample => _numberSample.ToString("N", CultureInfo);
    public string DateSample => DateTime.Today.ToString("D", CultureInfo);
    public string TimeSample => DateTime.Now.ToString("T", CultureInfo);
    public RegionInfo RegionInfo
    {

christiannagel

public class CulturesViewModel : INotifyPropertyChanged
{
    public CulturesViewModel() => SetupCultures();

    // ... INotifyPropertyChanged Implementation

    private void SetupCultures()
    {
        var cultureDataDict = CultureInfo.GetCultures(CultureTypes.AllCultures)
            .OrderBy(c => c.Name)

christiannagel

<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
    <Grid.ColumnDefinitions>
        <ColumnDefinition />
        <ColumnDefinition />
    </Grid.ColumnDefinitions>
    <TreeView Style="{StaticResource TreeViewStyle1}" x:Name="treeView1"
              ItemInvoked="{x:Bind OnSelectionChanged, Mode=OneTime}"
              SelectionMode="Single">
    </TreeView>
    <local:CultureDetailUC Grid.Column="1" CultureData="{x:Bind ViewModel.SelectedCulture, Mode=OneWay}" />

christiannagel

public sealed partial class MainPage : Page
{
    public MainPage() => InitializeComponent();

    private void OnSelectionChanged(TreeView sender, TreeViewItemInvokedEventArgs args)
    {
        if (args.InvokedItem is TreeViewNode node && node.Content is CultureData cd)
        {
            ViewModel.SelectedCulture = cd;                
        }