java 从侦听器中选中复选框选择
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Check checkbox selection from within Listener
提问by Keith Spriggs
Working away at the moment but have come up with a small problem with JFace. I have most of what I need to is have a check box that allows the next button to become active.
目前正在工作，但对 JFace 提出了一个小问题。我需要的大部分内容是有一个复选框，允许下一个按钮变为活动状态。
Here is the code
这是代码
Button btnConfirm = new Button(container, SWT.CHECK);
btnConfirm.addSelectionListener(new SelectionAdapter() {
@Override
public void widgetSelected(SelectionEvent e) {
//missing if statement
setPageComplete(true);
}
});
btnConfirm.setBounds(330, 225, 75, 20);
btnConfirm.setText("Confirm");
Thanks in advance for any help
在此先感谢您的帮助
Edit What I'm trying to do is to build a menu where some has to accept the terms and conditions before they can progress beyond a point The default is to blank, but when the box is checked the next button will appear, if it is not then the next button will remain inactive.
Edit What I'm trying to do is to build a menu where some has to accept the terms and conditions before they can progress beyond a point The default is to blank, but when the box is checked the next button will appear, if it is否则下一个按钮将保持不活动状态。
回答by Baz
Just make the Buttonfinaland access it from within the Listener:
只需在 中创建Buttonfinal并访问它Listener：
final Button btnConfirm = new Button(shell, SWT.CHECK);
btnConfirm.addSelectionListener(new SelectionAdapter()
{
@Override
public void widgetSelected(SelectionEvent e)
{
if (btnConfirm.getSelection())
setPageComplete(true);
else
setPageComplete(false);
}
});
Alternatively, get the Buttonfrom the SelectionEvent:
或者，Button从以下位置获取SelectionEvent：
Button btnConfirm = new Button(shell, SWT.CHECK);
btnConfirm.addSelectionListener(new SelectionAdapter()
{
@Override
public void widgetSelected(SelectionEvent e)
{
Button button = (Button) e.widget;
if (button.getSelection())
setPageComplete(true);
else
setPageComplete(false);
}
});
