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how to position scrollbar in scrollpane

5 replies on 1 page. Most recent reply: Sep 29, 2005 3:21 AM by Kondwani Mkandawire

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Yogesh

Posts: 19
Nickname: kyogesh
Registered: Sep, 2004

how to position scrollbar in scrollpane Posted: Sep 27, 2005 11:21 AM
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I have a scrollpane containing a textarea.
i want to set the vertical scrollbar of scrollpane to
the initial values (at the top of scrollpane) so that
i can view the first line of the content in text area

how to achieve this


Kondwani Mkandawire

Posts: 530
Nickname: spike
Registered: Aug, 2004

Re: how to position scrollbar in scrollpane Posted: Sep 27, 2005 11:07 PM
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Like what do you mean. Every time I place a JTextArea
in a ScrollPane, I don't have to worry about the Scrollbar
settings - unless you have a very specific way you want
it to function. The ScrollPolicies are automatically set.

Well at least in terms of the Java 5 on the desk top I'm
using right now and Java 1.4.2 that is on my laptop.

Doesn't simply doing:
JTextArea myText = new JTextArea(col, rows);
JScrollPane scrollPane = new JScrollPane(myText);

do the trick for you?

What ScrollPolicies are you trying to satisfy? Or maybe
you are using an older Swing Library that did not support
this?

Matthias Neumair

Posts: 660
Nickname: neumi
Registered: Sep, 2003

Re: how to position scrollbar in scrollpane Posted: Sep 27, 2005 11:51 PM
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I think he's looking for
scrollPane.getViewport().setViewPosition(new java.awt.Point(0, 0));


Could be that there could be a problem if myText allready contains a lot of text and if the scrollpane is set to autoscroll.

Yogesh

Posts: 19
Nickname: kyogesh
Registered: Sep, 2004

Re: how to position scrollbar in scrollpane Posted: Sep 29, 2005 2:34 AM
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yes exactly
you guessed it right
i have lots of text in text area.
ur solution worked.

also i got one more solution to my problem

txtArea.setCaretPosition(0);


thanks :)

Kondwani Mkandawire

Posts: 530
Nickname: spike
Registered: Aug, 2004

Re: how to position scrollbar in scrollpane Posted: Sep 29, 2005 3:16 AM
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Tx, I'm now using that in a team project.

Kondwani Mkandawire

Posts: 530
Nickname: spike
Registered: Aug, 2004

Re: how to position scrollbar in scrollpane Posted: Sep 29, 2005 3:21 AM
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Great! Thanks again, works like a charm...

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