Question

I have created a customized editor for my table by extending default editor in java. The code look like

import java.awt.Component;
import java.text.ChoiceFormat;

import javax.swing.DefaultCellEditor;
import javax.swing.JComboBox;
import javax.swing.JTable;

import com.ushustech.nmsazzist.model.mib.MibVariableModel;


public class MibFormattedValueEditor extends DefaultCellEditor
{

private JComboBox m_comboBox;
public MibFormattedValueEditor()
{
    this(new JComboBox());
}

public MibFormattedValueEditor(JComboBox comboBox)
{
    super(comboBox);
    this.m_comboBox = comboBox;
}

@Override
public Object getCellEditorValue()
{
    return this.m_comboBox.getSelectedItem();
}

@Override
public Component getTableCellEditorComponent(JTable table, Object value, boolean isSelected, int row, int column)
{
    this.m_comboBox.removeAllItems();
    MibVariableModel model = (MibVariableModel) table.getModel();
    ChoiceFormat format = model.getMibVariable(row).getFormat();

    if(null != format){
        Object[] obj = format.getFormats();
        for(int i=0;i<obj.length;i++){
            this.m_comboBox.addItem(obj[i].toString());
        }

    }

    return super.getTableCellEditorComponent(table, value, isSelected, row, column);

}

}  

I want to display a text field editor if the format is null ? Please Help me for doing this? Thanks.

Answer 1

I wouldn’t replace the ComboBox as this can get dirty. I would rather set it editable in case of format == null and let the user input the information here. Like this:

if(null != format) {
   // ...
} else {
   this.m_comboBox.setEditable(true);
}