When the user selects/deselects a node in the tree viewer, the selection changed listener gets called with this: public void selectionChanged(SelectionChangedEvent event).

当用户选中／取消选中树查看器中的节点时，用下面的方法调用选择更改侦听器

youdao

If a successful match occurs, the selection state is changed to reflect the new document.

如果出现成功匹配，则应该修改选择状态以反映新文档。

youdao

As I am retouching a portrait, the default color of 'red' is a bit of an unfortunate selection, so I changed that one to a nice green, in order to be able to see better what I am doing.

当我修整一幅肖像，默认颜色为“红色”还真是个不幸的选择，所以我改设为淡绿色，以便我能看清自己的所做所为。

youdao

When Anthony returns, he may feel like he's been in a cave for a hundred years: The Knicks' play selection has changed wildly, little-used reserve Steve Novak is now a key piece and defensive wiz Tyson Chandler has become a dominant offensive force.

WSJ: Can Jeremy Lin and Carmelo Anthony Coexist?

This surprised Dr Rosenthal and Ms Garrett, who had expected that natural selection would have changed the DNA, and thus the composition of the resulting protein.

ECONOMIST: A hitherto-unknown way to evolve

Darwin's theory - of random mutation followed by natural selection according to environmental suitability - changed science, changed the world.

BBC: Part Three - France and the World