Checkbox does not render correctly in simulator/html
Simply add a basic checkbox into your grid like so:
<CheckBox Grid.Row="0" Name="chkObject" Content="Click me!" />
In the XAML preview pane, the checkbox is rendered correctly. You will see the box, along with the Context Text to the right. When running the simulator (or using the generated HTML), you instead only see the label - the box is not drawn. I have also noticed that there is no way to set the checked state via XAML as the "IsChecked" property appears to not be a DP?