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How to Add Action Listener to JComboBox
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Posted By:   Vishal_Deb
Posted On:   Tuesday, January 24, 2012 12:51 PM

Hi I am writing one simple program for upgrading my knowlegde from C# to Java but I am failed to attach ActionListener to JComboBox which is added to a cell of JTable at run time. Actually I want to perform update operation and delete operation on selecting Update or Delete item from JComboBox which is generated at runtime im a JTable. I am able to add JComboBox to the cell of JTable and also getting the seleted value from JComboBox on click event of JTable but, my requirement is not fullfilled by this. Here is my partial code - JComboBox comboBox; public manage() { initComponents(   More>>

Hi

I am writing one simple program for upgrading my knowlegde
from C# to Java but I am failed to attach
ActionListener to JComboBox which is added to a cell
of JTable at run time.


Actually I want to perform update operation and delete
operation on selecting Update or Delete item from
JComboBox which is generated at runtime im a JTable.


I am able to add JComboBox to the cell of JTable and also
getting the seleted value from JComboBox on click
event of JTable but, my requirement is not fullfilled
by this.


Here is my partial code -


			
JComboBox comboBox;
public manage() {
initComponents();
try
{
Class .forName("com.mysql.jdbc.Driver");
con = DriverManager.getConnection
("jdbc:mysql://localhost:3306/project","root","ROOT");
//jDateChooser1.setDate(Calendar.getInstance().getTime());
}
catch(Exception e)
{
System.out.println(e.getMessage());
}
String[] confirm = { "Update", "Delete"};
comboBox = new JComboBox(confirm);}
}
private void formWindowOpened(java.awt.event.WindowEvent evt) {
final Object[] columnNames=new String[] {"Movie Name","Start Date","End Date","Show 1","Show 2","Show 3","Show 4","Operation"};
SimpleDateFormat sdf= new SimpleDateFormat("yyyy-MM-dd");
DefaultTableModel dtm=new DefaultTableModel(columnNames,0);
Calendar c=Calendar.getInstance();

try
{
String sql="SELECT * FROM manage;";
smt1=con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE);
rs = smt1.executeQuery(sql);
int i = 0;
while(rs.next())
{
String var1=rs.getString(1);
String var2=rs.getString(2);
String var3=rs.getString(3);
String var4=rs.getString(4);
String var5=rs.getString(5);
String var6=rs.getString(6);
String var7=rs.getString(7);

dtm.addRow(new Vector());
dtm.setValueAt(var1, i, 0);
dtm.setValueAt(var2, i, 1);
dtm.setValueAt(var3, i, 2);
dtm.setValueAt(var4, i, 3);
dtm.setValueAt(var5, i, 4);
dtm.setValueAt(var6, i, 5);
dtm.setValueAt(var7, i, 6);

i++;
}
jTable1.setModel(dtm);
jTable1.getColumnModel().getColumn(7).setCellEditor(new DefaultCellEditor(comboBox));
}
catch(Exception ex)
{
System.out.println(ex.getMessage());
ex.printStackTrace();
}



After this code I added JTable click event to get the data
from table cell by using Object and converted them to
string. I am getting the value of Jcombobox but I want to implement operations on click event of JComboBox.


I hope I will get some positive response fro this forum.


Thanx in Advance and any code is most appriciated.


Regards

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