• Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 707
  • Last Modified:

Rudimentary question: Adding MouseListener to JTable rows

I am adding a MouseListener to the rows of a table in order to add Drag and Drop to the rows (with Apple's D & D API).This is as far as I've gotten:

for (int i = 0; i < table.getRowCount(); i++) {
row[ i ].addMouseListener( rowListener );
}
Which returns the following error:
"...Undefined variable: row
row.addMouseListener( rowListener );
^ "

I [i] think [/i] that what I am looking for is to define "row" using something like:
" row = table.grabAllTheRows "
then add the MouseListener to each row:
"row[ i ].addMouseListener( rowListener )".

If I am on the wrong track, please let me know.

0
pkl_javaq
Asked:
pkl_javaq
2 Solutions
 
gsatsanCommented:
yep..you need to define the type of row first and then provide it an object reference..but you can eliminate the row variable by using table.getRow(i) method or it's equivalent in the API.

table.getRow(i).addMouseListener(rowListener);
0
 
pkl_javaqAuthor Commented:
Hi gsatsan;

Thanks for the comment. I tried it and this code:

for (int i = 0; i < table.getRowCount(); i++) {
table.getRow(i).addMouseListener(rowListener);
}

returns this error message:
"...Method getRow(int) not found in class javax.swing.JTable.
table.getRow(i).addMouseListener(rowListener);"
            ^
How do I fix it?

Thanks in advance.
0
 
gsatsanCommented:
Swing does not provide with any functionality for trapping mouse motion in a JTable. You could however have a work around. You could add a component/panel in each of the cells and add a mouselistener to those components.
0
The new generation of project management tools

With monday.com’s project management tool, you can see what everyone on your team is working in a single glance. Its intuitive dashboards are customizable, so you can create systems that work for you.

 
OviCommented:
You can implement your own getRow() like this :

suppose your table class is called MyTable :

public class MyTable extends JTable {
private MyTmodel
..........................
public Vector getRow(int row) {
 Vector v = new Vector();
 int cols = getColumnCount();
 for(int i = 0; i<cols; i++)
  v.addElement(getValueAt(row, i));
 return(v);
}

public Object[] getRow(int row) {
 int cols = getColumnCount();
 Object[] o = new Object[cols];
 for(int i = 0; i<cols; i++)
  o[i] = getValueAt(row, i);
 return(o);
}
..........................
}

, and so you have two methods which are returning a roe Vector or an row array elements of Objects.
 The same method you can use for "paste" a row, using setValueAt(int row, int col) method
0
 
Igor BazarnyCommented:
Hi,

getRow() won't help. You need it to be Component to add mouse listener. JTable doesn't have components which correspond to rows. Add MouseListener directly to table and use columnAtPoint() and rowAtPoint() to get column/row information.

Regards,
Igor Bazarny
Brainbench MVP for Java 1
www.brainbench.com
0
 
sudhakar_koundinyaCommented:
No comment has been added lately, so it's time to clean up this TA.
I will leave a recommendation in the Cleanup topic area that this question is:


[split points between gsatsan and Ovi]


Please leave any comments here within the next seven days.
 
PLEASE DO NOT ACCEPT THIS COMMENT AS AN ANSWER!
 
sudhakar_koundinya
EE Cleanup Volunteer
---------------------
If you feel that your question was not properly addressed, or that none of the comments received were appropriate answers, please post your concern in THIS thread.
0

Featured Post

[Webinar] Kill tickets & tabs using PowerShell

Are you tired of cycling through the same browser tabs everyday to close the same repetitive tickets? In this webinar JumpCloud will show how you can leverage RESTful APIs to build your own PowerShell modules to kill tickets & tabs using the PowerShell command Invoke-RestMethod.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now