1: Notice the nested canvas and the controls list a location relative to Canvas
2:
3:
4:
5: <Canvas>
6: <StackPanel>
7: <Canvas>
8: <Button Canvas.Top="0" Canvas.Left="0" Width="50" Height="30" Content="-->"></Button>
9: <ComboBox Canvas.Top="0" Canvas.Left="60" Width="250" Height="30"></ComboBox>
10: </Canvas>
11: <Canvas>
12: <Button Canvas.Top="0" Canvas.Left="0" Width="50" Height="30" Content="-->"></Button>
13: <ComboBox Canvas.Top="0" Canvas.Left="60" Width="250" Height="30"></ComboBox>
14: </Canvas>
15: <Canvas>
16: <Button Canvas.Top="0" Canvas.Left="0" Width="50" Height="30" Content="-->"></Button>
17: <ComboBox Canvas.Top="0" Canvas.Left="60" Width="250" Height="30"></ComboBox>
18: </Canvas>
19: <Canvas>
20: <Button Canvas.Top="0" Canvas.Left="0" Width="50" Height="30" Content="-->"></Button>
21: <ComboBox Canvas.Top="0" Canvas.Left="60" Width="250" Height="30"></ComboBox>
22: </Canvas>
23: <Canvas>
24: <Button Canvas.Top="0" Canvas.Left="0" Width="50" Height="30" Content="-->"></Button>
25: <ComboBox Canvas.Top="0" Canvas.Left="60" Width="250" Height="30"></ComboBox>
26: </Canvas>
27: </StackPanel>
28: </Canvas>
29: