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我有一个Composite
的子类,创建了N个组合框,其中N由输入定义。所以当用户进行更改时,组合框的数量可能会发生变化。目前,这不会发生。我试着做这两种方式:swt - 重新创建复合
// On event, straight reconstruct, no change to number of dropdowns
myComp = new MyComposite(parent, SWT.NONE, newNum);
// On event, dispose and reconstruct, this completely removes my composite from the gui
myComp.dispose();
myComp = new MyComposite(parent, SWT.NONE, newNum);
这里是我的综合类:
public MyComposite(Composite parent, int num) {
super(parent, SWT.BORDER);
this.setText("MY Composite");
this.setLayout(new GridLayout(1, true));
this.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));
combos = new HashMap<>();
for(int i = 0; i < num; i++) {
combos.put(i, new Combo(this, SWT.NONE));
}
}
是否有其他/更好的方式来做到这一点?