In recent days I realize the interface I design - I uses a split view - where the left view is a tree view, the right view is an attribute page control that includes two property pages. In fact, for me, using a division view is self-found, my technology is not skilled, my time is limited, because I am doing business software. Today, after the discussion of Director, after considering the simpleness of function and user operation, I changed the interface. In combination with the experience of the VC development interface a few days ago, I decided to use a single view. Whether it is an advanced view or a single view, our ultimate goal is to meet the needs of user operations. With the purpose of the advanced view, I think in addition to obtaining a better interface effect, more important to expand the functionality of the view or control. In this sense, if we can expand the function of the control or view when we are in a single view, why don't we use a single view? Perhaps my technology is not mature enough, but for software development, the most important thing is to develop products on time.