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Jtable combo box issue

kopparapu v kiran kumar
Ranch Hand

Joined: Oct 16, 2008
Posts: 32

Hi,

I'm having a new table with a jcombobox in that. After selecting the first row value from the combox(first row returns selected value properly), if we select the second row value from the combobox it is retruning empty value. How to solve this issue??

Adding the following code in the constructor.


Here are my doubts:
Am I addiing only one jcombobox to the entire table instead of adding a new combobox for each row in the table??
If yes how to add new jcombobox for each table.

Please help me to solve this issue.

Thanks and Regards,
Kiran Kumar K.V
Rob Camick
Ranch Hand

Joined: Jun 13, 2009
Posts: 2152
    
    7
The Swing tutorial on "How to Use Tables" has a working example.
Rob Spoor
Sheriff

Joined: Oct 27, 2005
Posts: 19649
    
  18

kopparapu v kiran kumar wrote:Am I addiing only one jcombobox to the entire table instead of adding a new combobox for each row in the table??

Yes.

If yes how to add new jcombobox for each table.

You don't need to use a new JComboBox for each table, you just need to replace the JComboBox contents for each cell. You have two choices that I can think of:
1) override JTable's prepareEditor method:

2) subclass DefaultTableCellEditor and do something similar in its getTableCellEditorComponent method.


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kopparapu v kiran kumar
Ranch Hand

Joined: Oct 16, 2008
Posts: 32

Any example with the DefaultCellEditor would be appreciated.
Rob Camick
Ranch Hand

Joined: Jun 13, 2009
Posts: 2152
    
    7
Again, the tutorial has a working example!
kopparapu v kiran kumar
Ranch Hand

Joined: Oct 16, 2008
Posts: 32

Dear Rob,


Have you tested that example they have given?? It doesn't suits my requirement.... Try to understand the requirement first.


Thanks and Regards
Kiran
Rob Spoor
Sheriff

Joined: Oct 27, 2005
Posts: 19649
    
  18

The tutorial shows how to use a combo box as an editor. My code shows how to fill the combo box. How does that not meet your requirements?
kopparapu v kiran kumar
Ranch Hand

Joined: Oct 16, 2008
Posts: 32

Dear Rob Prime,

Sorry. Your name and Rob Camik firname is same(Rob). I thought to convey my message to Rob Camik. Sorry for the overlook.

Thanks and Regards,
Kiran Kumar.
Rob Spoor
Sheriff

Joined: Oct 27, 2005
Posts: 19649
    
  18

kopparapu v kiran kumar wrote:I thought to convey my message to Rob Camick.

I got that, but does that mean I am not allowed to reply?
kopparapu v kiran kumar
Ranch Hand

Joined: Oct 16, 2008
Posts: 32

NO!!
Rob Spoor
Sheriff

Joined: Oct 27, 2005
Posts: 19649
    
  18

I really hope you're kidding...
 
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