usausa

public static unsafe byte[] Fill(this byte[] array, int offset, int length, byte value)
{
    if ((length <= 0) || (array == null))
    {
        return array;
    }

    fixed (byte* pSrc = &array[offset])
    {
        *pSrc = value;

usausa

<Window x:Class="WpfApp.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:WpfApp"
        mc:Ignorable="d"
        Title="MainWindow" Height="350" Width="525">
    <StackPanel>
        <Label Content="{Binding Path=Content.(local:ViewProperty.Title), Mode=OneWay, Source={x:Reference Container}}"/>

usausa

using System;
using System.Reflection;
using System.Reflection.Emit;

public static class DynamicActivatorFactory
{
    private static readonly AssemblyBuilder AssemblyBuilder = AssemblyBuilder.DefineDynamicAssembly(
        new AssemblyName("DynamicActivator"),
        AssemblyBuilderAccess.Run);

usausa

using System;
using System.ComponentModel;
using System.Windows;
using System.Windows.Interactivity;

[TypeConstraint(typeof(FrameworkElement))]
public class UpdateTargetAction : TriggerAction<FrameworkElement>
{
    public static readonly DependencyProperty PropertyNameProperty =
        DependencyProperty.Register(nameof(PropertyName), typeof(string), typeof(UpdateTargetAction));