ToggleButton redesign, can't find Property 'IsChecked'
===

I want to redesign my ToggleButton. I create the ToggleButton in xaml:

    <ToggleButton Width="15" Grid.Column="2" />

And have the ToggleButton Style in the Resources:

	<Style TargetType="ToggleButton">
		<Setter Property="Template">
			<Setter.Value>
				<ControlTemplate>
					<Path Name="Arrow" Fill="Black" HorizontalAlignment="Center" VerticalAlignment="Center" Data="M 0 0 L 4 4 L 8 0 Z" />	
					<ControlTemplate.Triggers>
						<Trigger Property="IsChecked" Value="true">
							<Setter TargetName="Arrow" Property="Data" Value="M 0 4 L 4 0 L 8 4 Z" />
						</Trigger>
					</ControlTemplate.Triggers>						
				</ControlTemplate>
			</Setter.Value>
		</Setter>
	</Style>

When I'm try to build i've got this error:

> Cannot find the Template Property 'IsChecked' on the type
> 'System.Windows.Controls.Control'.

How can I solve the problem?
