Grouping and UnGrouping of JTable Rows

[Neelakantan Kuthalanathan]

Hi,

As anyone done Grouping and UnGrouping of JTable Rows as we find in MS Excel?
Any pointers??

[Maneesh Godbole]

Originally posted by Neelakantan Kuthalanathan:
Hi,

As anyone done Grouping and UnGrouping of JTable Rows as we find in MS Excel?
Any pointers??

Check out:
http://java.sun.com/docs/books/tutorial/uiswing/components/table.html#sorting

Similar values will be grouped together after you sort.

[Neelakantan Kuthalanathan]

thanks for teh reply..
But my requirement is different.
I need have a expandable nodes to expand/hide the grouped rows.
To understand my requirement,best example could be to See the Grouping feature in Ms-Excel.

thanks
neel

[Maneesh Godbole]

My bad.
Missed out on what your saying completely.

Something like this?
http://java.sun.com/products/jfc/tsc/articles/treetable1/

[Neelakantan Kuthalanathan]

Yes I need a feature like this.....But I am not sure how to change the FileSystemModel in the example to my requirement.

My requirent is like this as I have attached the Screen Shot:


As shown the screenshot i want the Group 1 ,2,3 to be expandable and hideable i.e should behave like a Jtree node.....In rest of the column User can enter any input i.e for the columns A,B,C..

I Hope you understood my problem now.

[Neelakantan Kuthalanathan]

[Rob Spoor]

Check the link Maneesh has provided. A tree table looks to exactly what you need.

[Neelakantan Kuthalanathan]

Hi,

Thanks.I tried with the example.
But I have two problems I am facing:

1. The grid lines does'nt extend till the tree node
2. the Horizontal scroll bar never gets added...I am adding the JtreeTable component into scrollpane and set

scrollPane.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);

but still no effect.

I am attaching the screen shot for your reference.


Any idea to resolve the issue

[Rob Spoor]

Originally posted by Neelakantan Kuthalanathan:
2. the Horizontal scroll bar never gets added...I am adding the JtreeTable component into scrollpane and set

scrollPane.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);

but still no effect.

That's a default property of JTable. Fortunately you can change it, using JTable.setAutoResizeMode. You'll most likely want AUTO_RESIZE_OFF.

[Neelakantan Kuthalanathan]

thanks.
any idea on how to have the grid lines extended for the Jtree nodes?

[Rob Spoor]

I think you need to play around with the tree's cell renderer. Using a LineBorder could do the trick. table.getGridColor() will return the color of the grid lines so they will always be the same.