A UI Design Pattern Based On Databinding

User Interface (UI) is an important part of computer application system. With the increasing requirements of UI ability, UI developing almost half the resources. But existing software engineering methods don't support UI design and description enough. For improving developing efficiency and quality, we should separate UI design and system function design away.In real projects, people propose various UI design methods: UI design based on formal method, UI design based on UI design pattern, UI design based on task model, UI design based on UI template, UI design based on UMLi, etc.UI design pattern is a design pattern technology in User Interface design field. The purpose of Human Computer Interface (HCI) is constructing common solutions to help UI designers solve popular, hard, and common problem during UI developing.This paper advance a UI design pattern based on databinding. It's for applications which could manipulate data and show the modification on many parts of UI. Under this pattern, we could build up our UI freely without considering side effect to other part UI, when we construct UI. Parts of UI couple low. More important, this pattern take advance of databinding, it could notify UI update automatically, we don't need write code to update manually. So the developers mustn't take care of UI update, thus, we can make UI data and logic data keep same, and updating in time. Also, there will be fewer bugs.