emoacht

using System.ComponentModel;
using System.Runtime.CompilerServices;
using System.Windows.Forms;

public class BatteryStatus : INotifyPropertyChanged
{
  public BatteryChargeStatus BatteryChargeStatus => SystemInformation.PowerStatus.BatteryChargeStatus; // Flag

  public int BatteryFullLifetime => SystemInformation.PowerStatus.BatteryFullLifetime;

emoacht

using System;
using System.Collections.Concurrent;
using System.Diagnostics;
using System.IO;
using System.Threading;
using System.Threading.Tasks;

public class StreamCopy
{
  private const int bufferSize = 1024 * 1024; // 1MiB

emoacht

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;

public static class BytesExtension
{
  public static byte[] SequenceReplace(this byte[] source, byte[] oldValue, byte[] newValue, int maxCount = -1)
  {
    var sourceIndices = SequenceIndicesOf(source, oldValue, maxCount).ToArray();

emoacht

// Add reference to WindowsBase and System.Xaml.
using System;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Media.Imaging;

public class ExifDate

emoacht

using System;
using System.Collections;
using System.Collections.Generic;
using System.ComponentModel;
using System.Diagnostics;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text.RegularExpressions;
using System.Windows;
using System.Windows.Interop;

emoacht

using System.Collections.ObjectModel;
using System.Linq;
using System.Reactive.Linq;
using System.Threading.Tasks;
using Reactive.Bindings;
using Reactive.Bindings.Extensions;

public class Operation : BindableBase
{
    public ObservableCollection<ProfileItem> Profiles

emoacht

public partial class App : Application
{
    protected override void OnStartup(StartupEventArgs e)
    {
        base.OnStartup(e);

        MessageBox.Show(
            String.Format("IsProcessDPIAware: {0}", IsProcessDPIAware()) + Environment.NewLine +
            String.Format("GetDpiAwareness: {0}", GetDpiAwareness()));
    }

emoacht

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Runtime.InteropServices;
using System.Windows;
using System.Windows.Interop;
using System.Windows.Media;

public static class DisplayManager
{

emoacht

public ObservableCollection<Person> People = new ObservableCollection<Person>();

public ReactiveProperty<bool> IsAnyRemoved;

// 元のメソッド
private void SubscribePeople0()
{
    Func<Person, bool> predicate = x => x.IsRemoved;

    var peopleRemoved = new ObservableCollection<Person>();

emoacht

// http://okazuki.hatenablog.com/entry/2015/03/17/025940

var filtered = source.ToFilteredReadOnlyObservableCollection(x => x.IsRemoved);

ReactiveProperty<bool> IsAnyRemoved = filtered
    .CollectionChangedAsObservable()
    .Select(_ => 0 < filtered.Count)
    .ToReactiveProperty();