Use Slider to control TranslateTransform

   
    

<StackPanel xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
            xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
    <Label Content="X" />
    <ScrollBar Name="xscroll" Orientation="Horizontal" Minimum="-300" Maximum="1000" />
    <TextBlock HorizontalAlignment="Center" Text="{Binding ElementName=xscroll, Path=Value}" />

    <Label Content="Y" />
    <ScrollBar Name="yscroll" Orientation="Horizontal" Minimum="-300" Maximum="1000" />
    <TextBlock HorizontalAlignment="Center" Text="{Binding ElementName=yscroll, Path=Value}" />

    <Canvas>
        <Button Content="Button" Canvas.Left="100" Canvas.Top="100">
            <Button.RenderTransform>
                <TranslateTransform 
                    X="{Binding ElementName=xscroll, Path=Value}"
                    Y="{Binding ElementName=yscroll, Path=Value}" />
            </Button.RenderTransform>
        </Button>
    </Canvas>
</StackPanel>