WPF

// This is a property on the main window.
public System.Collections.Hashtable MyHashTable
{
	get
	{
		System.Collections.Hashtable table = new System.Collections.Hashtable();
		table["5"] = new SolidColorBrush(Colors.Red);
		return table;
	}
}

<Window
    x:Class="WpfApplication2.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Name="MyWindow"
    Title="Window1">
    <Grid>
        <!-- When you run this, the path will be the color red. -->
        <Path
            Data="M 100,200 C 100,25 400,350 400,175 H 280"
            Fill="{Binding ElementName=MyWindow, Path=MyHashTable[5]}" />
    </Grid>
</Window>

Path   Name="P056" Fill="{Binding ElementName=MyPage,Path = MyHashTable[Tag_1].Value ,Converter={StaticResource StatustoColorConverter},UpdateSourceTrigger = PropertyChanged}"  Stroke="DarkGreen"   StrokeThickness="1"  Width="27.684" Height="35.374" Data="M 5,5 c 9,0 13,8,13,13.5 c 0,5.5 -5,13 -12.5,13 v -5 c 5,0 7,-4 7,-8 c 0,-4 -4,-8 -7,-8.3 v-5 "  Canvas.Left="100" Canvas.Top="100";/Path;

<Window x:Class="WpfApplication4.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="Window1" Height="300" Width="300"
		x:Name="Root">
    <Grid>
        <CheckBox Name="checkBox1" IsChecked="{Binding ElementName=Root, Path=MyObject.Property1}" />
    </Grid>
</Window>

public partial class Window1 : Window
{
	MyObject myObject = new MyObject();

	public MyObject MyObject
	{
		get
		{
			return myObject;
		}
	}

	public Window1()
	{
		InitializeComponent();
		myObject.Property1 = true;
	}
}


public class MyObject : INotifyPropertyChanged
{
	bool property1;
	public bool Property1
	{
		get
		{
			return property1;
		}
		set
		{
			property1 = value;
			OnPropertyChanged(new PropertyChangedEventArgs("Property1"));
		}
	}

	public event PropertyChangedEventHandler PropertyChanged;

	protected void OnPropertyChanged(PropertyChangedEventArgs e)
	{
		if (PropertyChanged != null)
		{
			PropertyChanged(this, e);
		}
	}
}