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JTable size

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  JTable size Hakan <H.L@softhome.net> - 2012-05-07 09:41 +0200
    Re: JTable size "John B. Matthews" <nospam@nospam.invalid> - 2012-05-08 00:13 -0400
    Re: JTable size Roedy Green <see_website@mindprod.com.invalid> - 2012-05-08 07:51 -0700

#14353 — JTable size

 What do I need to add to control the size of a JTable? Nothing happens 
when I run the code quoted below, it stays the same size.

      Dimension tabledim=proTable.getSize();
            tabledim.setSize(2*tabledim.getWidth(), 
tabledim.getHeight());

   proTable.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
            proTable.setPreferredSize(tabledim);
      Dimension newtdim=new Dimension();
      newtdim.setSize(2*tabledim.getWidth(), tabledim.getHeight());
      proTable.setPreferredScrollableViewportSize(newtdim);

-- 
Newsoffice.de - Die Onlinesoftware zum Lesen und Schreiben im Usenet 
Die Signatur läßt sich nach Belieben anpassen ;-)

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#14387

In article <1336376488.66@user.newsoffice.de>, Hakan <H.L@softhome.net> 
wrote:

> What do I need to add to control the size of a JTable? Nothing 
> happens when I run the code quoted below, it stays the same size.
> 
>   Dimension tabledim=proTable.getSize();
>   tabledim.setSize(2*tabledim.getWidth(), tabledim.getHeight());
> 
>   proTable.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
>   proTable.setPreferredSize(tabledim);
>   Dimension newtdim=new Dimension();
>   newtdim.setSize(2*tabledim.getWidth(), tabledim.getHeight());
>   proTable.setPreferredScrollableViewportSize(newtdim);

Absent a complete example, it's hard to say with certainty. What is the 
goal? What is the expected value of getWidth() when you double it. Are 
you constructing GUI components on the event dispatch thread? What is 
the layout of the enclosing Container? At what point do you pack() the 
enclosing Window? For reference, you might compare what your doing with 
this working example:

<http://stackoverflow.com/a/8320681/230513>

In general, you should not use setPreferredSize() in this way, and you 
cannot rely on a component's size until it has been validated. You may 
get some insight from the answers to this question:

<http://stackoverflow.com/q/7229226/230513>

-- 
John B. Matthews
trashgod at gmail dot com
<http://sites.google.com/site/drjohnbmatthews>

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#14412

On Mon, 07 May 2012 09:41:28 +0200, Hakan <H.L@softhome.net> wrote,
quoted or indirectly quoted someone who said :

> What do I need to add to control the size of a JTable? Nothing happens 
>when I run the code quoted below, it stays the same size.

You put the JTable in a JScroller and control the size of the
JScroller with your layout. Logically the size of the JTable is the
size of all the data in it.

see http://mindprod.com/products1.html#VERCHECK
for sample code.
-- 
Roedy Green Canadian Mind Products
http://mindprod.com
Programmers love to create simplified replacements for HTML. 
They forget that the simplest language is the one you 
already know. They also forget that their simple little 
markup language will bit by bit become even more convoluted 
and complicated than HTML because of the unplanned way it grows.
.

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