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assign keys for combo box in java可能重复：为java中的组合框分配键
I am using JComboBox control in a Swing application. I have to add employee code and his name on JComboBox but i want to display only employee name not the code.
but when i select the employee name it should return the corresponding employee code. what is the best and easy solution for it. I am using the following code for adding the items on JComboBox
我在Swing应用程序中使用JComboBox控件。我必须在JComboBox上添加员工代码和他的名字，但我想只显示员工姓名而不是代码。但是当我选择员工姓名时，它应该返回相应的员工代码。什么是最好和最简单的解决方案。我使用以下代码在JComboBox上添加项目
try
{
JComboBox jc1= new JComboBox();
jc1.addItem("X");
jc1.addItem("Y");
jc1.addItem("Z");
}
public void itemStateChanged(ItemEvent ie)
{
String code=(String)jc1.getSelectedItem();
//while items being selected it should return the emp code of the given emp name
//eg if user selects X it should return the emp code corresponding to X.
}
1 个解决方案
#1
2
Instead of adding the code to the JComboBox, you have to add the Employee object (with the two members). Then you have to create a custom ListCellRenderer (extending DefaultListCellRenderer) to render the employee name.
您必须添加Employee对象（包含两个成员），而不是将代码添加到JComboBox。然后，您必须创建自定义ListCellRenderer（扩展DefaultListCellRenderer）以呈现员工姓名。
Take a look at Oracle's tutorial.
看看Oracle的教程。
#1
2
Instead of adding the code to the JComboBox, you have to add the Employee object (with the two members). Then you have to create a custom ListCellRenderer (extending DefaultListCellRenderer) to render the employee name.
您必须添加Employee对象（包含两个成员），而不是将代码添加到JComboBox。然后，您必须创建自定义ListCellRenderer（扩展DefaultListCellRenderer）以呈现员工姓名。
Take a look at Oracle's tutorial.
看看Oracle的教程。