Question

令人感到不解的是,我无法发现如何删除在一名法国人中挑选的多个项目。

求助热线

“enter

UPD: OK, the problem was in NetBeans, because it creates JList and sets model AbstractListModel which somehow not working with remove method.

Answer 1

   DefaultListModel dlm = (DefaultListModel) subjectList.getModel();

      if(this.subjectList.getSelectedIndices().length > 0) {
          int[] selectedIndices = subjectList.getSelectedIndices();
          for (int i = selectedIndices.length-1; i >=0; i--) {
              dlm.removeElementAt(selectedIndices[i]);
          } 
    }

Answer 2

I came across this problem too. All posted solutions did not work for me because if I call DefaultListModel#remove(int) it will modify the underlying list and thus the indices which I gathered before with JList#getSelectedIndices() are no longer valid.

我来到了这个为我工作的解决办法。

for (MyObject o : jList1.getSelectedValuesList())
{
    ((DefaultListModel<MyObject>)jList1.getModel()).removeElement(o);
}

通过处理选定的物体,我不必注意指数及其有效性。

Answer 3

我的解决办法:

DefaultListModel dlm = (DefaultListModel) lst.getModel();
int count = lst.getSelectedIndices().length;

for (int i = 0; i < count; i++)
{
     dlm.removeElementAt(lst.getSelectedIndex());
}

Answer 4

public int[] getSelectedIndices()

Answer 5

www.un.org/Depts/DGACM/index_french.htm

int[] selected = foo.getSelectedIndices();
for(int i : selected){
  foo.remove(i);
}

友情链接