嗨,强大的程序员,我再次作为 n00b 初学者寻求您的帮助......
问题如下,我有一个子窗口,包含一些标签、按钮和两个下拉菜单。我想在一个名为“name”的组合框中有一个 SelectionListener,以便从此下拉列表中选择的值将影响第二个 Combo - desc 中的选择值。
怎么做?
如果我取消注释
//desc.select(name.getSelectionIndex());
在
name.addSelectionListener(new SelectionAdapter())
eclipse 希望我将 Combo desc 和 Combo 名称更改为 final,这是不可能的,因为它需要在循环外初始化它们,破坏我的布局:(
这是代码:
public void tariffAddWindow(final Shell childWindow) {
childWindow.setText("add dialog");
labels = new Label[operatorTariffData.getColumnNames().length];
inputTexts = new Text[operatorTariffData.getColumnNames().length];
final Button buttons[] = new Button[operatorTariffData.getColumnNames().length];
Combo name = null;
Combo desc = null;
for (int i =1; i< operatorTariffData.getColumnNames().length; i++) {
labels[i] = new Label(childWindow, SWT.NONE);
labels[i].setText(operatorTariffData.getColumnNames()[i].toString());
labels[i].setBackground(blue);
if (i == 3) {
name = new Combo(childWindow, SWT.READ_ONLY | SWT.BORDER);
name.setLayoutData(tLayout);
buttons[i] = new Button(childWindow, SWT.PUSH);
buttons[i].setText("e");
} else if (i == 4) {
desc = new Combo(childWindow, SWT.READ_ONLY | SWT.BORDER);
desc.setLayoutData(tLayout);
buttons[i] = new Button(childWindow, SWT.PUSH);
buttons[i].setText("e");
} else {
inputTexts[i] = new Text(childWindow, SWT.None);
//texts[i].setText(data.getData()[i].toString());
inputTexts[i].setLayoutData(tLayout);
buttons[i] = new Button(childWindow, SWT.TOGGLE);
buttons[i].setText("x");
buttons[i].setSelection(false);
}
}
for (int i = 1; i < contentProvider.getTariffNames().getQueryRowCount(); i++) {
name.add(contentProvider.getTariffNames().getQueryData()[i][3].toString());
desc.add(contentProvider.getTariffNames().getQueryData()[i][2].toString());
}
name.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
//desc.select(name.getSelectionIndex());
}
});
}