Introduction In order to provide an editing experience as close as possible to the runtime, Expression Blend executes some of the user defined code (it instantiates controls, data sources, sets properties, etc.). But in some cases, you may want to avoid this behavior (if that code doesn't work properly...

This example shows how databinding and styles can be used for displaying a set of connected nodes. To better illustrate this, I've added some basic interactivity: the nodes can be dragged using the mouse and databinding will update automatically the positions of the lines. For simplicity, I will use...