在这种情况下，此组件树应该在处理之前的Faces请求期间构造和保存(参见侧栏状态保存方法)。

In this case, the component tree should have been constructed and saved during the processing of a previous Faces request (see the sidebar on state-saving methods).

youdao

在左侧面板中的树控件中，选择刚才创建的数据库连接，然后单击主工具栏中的Run图标。

In the tree control in the left pane, select the database connection you've just created, and click the Run icon from the main tool bar.

youdao

SWT提供了更高级组件的本机版本，如树、工具栏和表。

SWT provides a native version of the more advanced components, such as trees, toolbars, and tables.

youdao