Solved

question regarding JTable

Posted on 2001-09-11
5
354 Views
Last Modified: 2012-06-27
Hi,
       I have  a JTable which is enclosed in a JScrollPane.There are lot of rows in the table so that the total is not visible.vertical scroll bar is present.I have to move the scroll bar down to see some of the rows at the last.At this scenario,if I add a row to the table, the scroll pane is not displaying the added row(last row).it is not scrolling down to display it.How to programatically scroll down in a table if some row is added or selected
thanks in advance,
YamunaiThuraivan
0
Comment
Question by:YamunaiThuraivan
  • 3
  • 2
5 Comments
 
LVL 9

Accepted Solution

by:
Ovi earned 50 total points
ID: 6475805
something like

Rectangle r = table.getCellRect(row, col); // returns the rectangle of a cell from your last row added

tableScrollPane.getViewport().scrollRectToVisible(r);
0
 
LVL 9

Expert Comment

by:Ovi
ID: 6475812
The two method calls must be used in the 'addRow' portion of your code.
0
 
LVL 92

Expert Comment

by:objects
ID: 6475886
You need to define a TableModelListener and a TreeSelectionListener that scrolls to the added/selected row.
0
 
LVL 9

Expert Comment

by:Ovi
ID: 6475891
Aren't the listeners unnecesary in this case too ?
0
 
LVL 92

Expert Comment

by:objects
ID: 6475926
It's a far more flexible way to do it. The addRow() may not (and does not need) access to the table or the scroll pane. Additionally it is possible to add rows to the table without calling addRow() thus subverting your auto scrolling.
By implementing it as a TreeModelistener, you not only ensure it's called whenever a row is added, but you also have full control over it.

Ignore the mention of the TreeSelectionListener I misread the question.
0

Featured Post

Free Tool: ZipGrep

ZipGrep is a utility that can list and search zip (.war, .ear, .jar, etc) archives for text patterns, without the need to extract the archive's contents.

One of a set of tools we're offering as a way to say thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
custom annotations 9 42
How to convert String matching to regex in java 4 51
check java version using powershell 13 181
Convert from a json string array to a Java object 3 53
An old method to applying the Singleton pattern in your Java code is to check if a static instance, defined in the same class that needs to be instantiated once and only once, is null and then create a new instance; otherwise, the pre-existing insta…
Introduction This article is the first of three articles that explain why and how the Experts Exchange QA Team does test automation for our web site. This article explains our test automation goals. Then rationale is given for the tools we use to a…
Viewers learn about the “for” loop and how it works in Java. By comparing it to the while loop learned before, viewers can make the transition easily. You will learn about the formatting of the for loop as we write a program that prints even numbers…
Viewers will learn about the different types of variables in Java and how to declare them. Decide the type of variable desired: Put the keyword corresponding to the type of variable in front of the variable name: Use the equal sign to assign a v…

830 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question