I have a canvas include some element to show an robot arm. This arm can stretch out and draw back by animation.

Now I need initialize the arm and keep collapsed status in some case(not by animation). So I need reset the angle property of RotateTransform.

```
 <Canvas x:Name="RobotArm_Left" Width="60" Height="10" RenderTransformOrigin="0.9167,0.5" Canvas.Top="62.5" Canvas.Left="12.5">
    <Canvas.RenderTransform>
        <TransformGroup>                                   
            <RotateTransform x:Name="Rotate_RobotArm_Left" />                                    
        </TransformGroup>
    </Canvas.RenderTransform>
</Canvas>

```

I use two ways to set the angle:

```
((RotateTransform)page.FindName("Rotate_RobotArm_Left")).Angle=0; //0 is the init value
((RotateTransform)page.FindName("Rotate_RobotArm_Left")).SetValue(RotateTransform.AngleProperty, 0.0);

```

they all don't work. 

when I watch the value of ((RotateTransform)page.FindName("Rotate\_RobotArm\_Left")).Angle, it's -55.

Is there one way to set the property?

otherwise, before running animation, the angle property can be changed.But after animation,it cannot be changed.

thanks.