在comboBox中显示对象的第一个和第二个值

Question

I have a combobox with list of authors and with change in combobox I have to show the author's detail in table using java swing. I did like:

for(Author author: Application.authors){
    jComboBoxAuthors.addItem(author);
}

and with change in item selected :

if(jComboBoxAuthors.getSelectedIndex()>0){
    Author author = (Author)e.getItem();
    String name = author.getFirstName()+" "+author.getLastName();
}

It shows object in combo but i need the name only and if I dojComboBoxAuthors.addItem(author.getFirstName()); I can't get value in table ie. name return nothing. How can I fix this issue?

Answer 1

Using a custom renderer will break the default functionality of a JComboBox. That is you will no longer be able to select an item using the keyboard.

Check out Combo Box With Custom Renderer for more information and a more complete solution that shows how to fix this problem.

Answer 2

One thing you can do is override the toString() method as following

@Override
    public String toString() {
        return firstName+" "+lastName; // so that name will be displayed instead of default object
    }

But it has its limitations. Hope it helps