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Horizontal Scrollbar in JTables

  • From: tushark@xxxxxxxxxxxxxxxx (Tushar Karnad)
  • Subject: Horizontal Scrollbar in JTables
  • Date: Mon, 30 Aug 1999 17:59:26 +0530
This is a multi-part message in MIME format.

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	charset="iso-8859-1"
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Hi,

In my application, a JTable requires a horizontal scrollbar. I have =
placed the JTable in a scrollpane and have overridden the getSize() of =
the JTable so that it returns the actual size of the table depending on =
the amount of data to be displayed. Although the horizontal scrollbar of =
the scroll pane appears, the columns that are initially hidden donot get =
painted even after I move the scrollbar. I am adding a piece of my code.

It would be great if somebody could send me a working sample code of a =
JTable with a horizontal scroll bar.

        table =3D new JTable(tableModel)
        {
           public boolean isFocusTraversable()
          {
              return false;
          }

            public Dimension getSize()
            {
                return new Dimension(actualTableWidth, =
actualTableHeight);
            }
        };
...
....
...
            if (hScroll)
             =
tablePane.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_A=
LWAYS);
            else
                =
tablePane.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_N=
EVER);


Thanx,

Tushar

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<!DOCTYPE HTML PUBLIC "-//W3C//DTD W3 HTML//EN">
<HTML>
<HEAD>

<META content=3Dtext/html;charset=3Diso-8859-1 =
http-equiv=3DContent-Type>
<META content=3D'"MSHTML 4.72.3612.1706"' name=3DGENERATOR>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT color=3D#000000 size=3D2>Hi,</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT color=3D#000000 size=3D2>In my application, a JTable requires =
a=20
horizontal scrollbar. I have placed the JTable in a scrollpane and have=20
overridden the getSize() of the JTable so that it returns the actual =
size of the=20
table depending on the amount of data to be displayed. Although the =
horizontal=20
scrollbar of the scroll pane appears, the columns that are initially =
hidden=20
donot get painted even after I move the scrollbar. I am adding a piece =
of my=20
code.</FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT size=3D2>It would be great if somebody could send me a =
working sample=20
code of a JTable with a horizontal scroll bar.</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT size=3D2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; table =3D =
new=20
JTable(tableModel)<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
{<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; public =
boolean=20
isFocusTraversable()<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&=
nbsp;=20
{<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;=20
return false;<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=20
}</FONT></DIV>
<DIV><FONT size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT=20
size=3D2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p; public=20
Dimension=20
getSize()<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;=20
{<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;&nbsp;=20
return new Dimension(actualTableWidth,=20
actualTableHeight);<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;&nbsp;&nbsp;=20
}<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; };</FONT></DIV>
<DIV><FONT size=3D2></FONT><FONT color=3D#000000 =
size=3D2>...</FONT></DIV>
<DIV><FONT size=3D2></FONT><FONT color=3D#000000 =
size=3D2>....</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT><FONT =
size=3D2>...</FONT></DIV>
<DIV><FONT color=3D#000000=20
size=3D2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbs=
p; if=20
(hScroll)<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=
&nbsp;&nbsp;=20
tablePane.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_A=
LWAYS);<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&n=
bsp;=20
else<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp=
;&nbsp;&nbsp;&nbsp;&nbsp;=20
tablePane.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_N=
EVER);<BR></FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT color=3D#000000 size=3D2>Thanx,</FONT></DIV>
<DIV><FONT color=3D#000000 size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT color=3D#000000 size=3D2>Tushar</FONT></DIV></BODY></HTML>

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