WPF Memo

I made mistakes in developing WPF application.

1. The context menu does not show on the canvas.
→ I needed to set the background of the canvas.

2. The data binding is failed.
→ The binding source must be the property not the field. The binding target must be the dependency properties. See the site.

3. It is failed that the data binding to a property of an object.
→ The binding path is not separated by '/' but is separated by '.'.