使用相同模型填充多个组合框但选择diff [英] populate multiple combobox with same model but select diff

问题描述

我遇到了 ComboBox 的问题，我用相同的模型填充了多个 ComboBox es，但是当我运行时我的程序并从一个ComboBox中选择一个值，它为其余的选择相同的值。

Having problems with the ComboBox, I have populated multiple ComboBoxes with the same model, but when I run my program and select a value from one ComboBox it selects the same value for the rest.

ComboHBoy.setModel(defaultComboBoxModel);
ComboHGirl.setModel(defaultComboBoxModel);
ComboDHBoy.setModel(defaultComboBoxModel);
ComboDHGirl.setModel(defaultComboBoxModel);

推荐答案

那是因为它们都引用了相同的模型，模型的任何更改都会影响所有其他组合。

That's because they all are referenced to the same model, any change of the model will affect the all the other combos.

没有办法解决这个问题，除非每个组合框都有它自己的 DefaultComboBoxModel 。

There is no way to solve this except that every combobox have it's own DefaultComboBoxModel.

private  DefaultComboBoxModel hBoyModel= new DefaultComboBoxModel();
private  DefaultComboBoxModel hGirlModel= new DefaultComboBoxModel();
//....
ComboHBoy.setModel(hBoyModel);
ComboHGirl.setModel(hGrilModel);
//....

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