Solved

ScrollBar Problem

Posted on 2003-11-28
8
284 Views
Last Modified: 2010-03-31
hi ...
i have a form that has a table...
i wanted to add scroll bars to that table but i don't really know how to do it.
can someone help me please??

this is my code for creating the table :
final String[] colName = { "CPR", "Name", "Address", "Phone", "Sex", "Date OF Birth" };

TableModel pageModel = new AbstractTableModel()
{
public int getColumnCount()
{
return tableData[0].length;
} //getColumnCount

public int getRowCount()
{
return tableData.length;
} //getRowCount

public Object getValueAt(int row, int col)
{
return tableData[row][col];
} //getValueAt

public String getColumnName(int column)
{
return colName[column];
} //getcolName

public Class getColumnClass(int col)
{
return getValueAt(0, col).getClass();
} //getColumnClass

public boolean isCellEditable(int row, int col)
{
return false;
} //isCellEditable

public void setValueAt(String aValue, int row, int column)
{
tableData[row][column] = aValue;
} //setValueAt
}; //pageModel

//-----------------------------------------------------------------------------------------------------
//Create the JTable from the table model:

dataTable = new JTable(pageModel);

//-----------------------------------------------------------------------------------------------------

if (scrollpane != null)
{
scrollpane.setVisible(false);
scrollpane = null;
} //if

scrollpane = new JScrollPane(dataTable);
scrollpane.setVisible(true);

if (inputPanel == null)
makeGUI();
customerPanel.add(scrollpane, BorderLayout.SOUTH);

c.add(tabs);
id.grabFocus();
pack();
repaint();
adupdateTable();
} //try
catch (Exception e)
{
System.out.println("Caught updateTable exception: " + e);
} //catch
} //updatetable

thankxx

0
Comment
Question by:deena18
  • 4
8 Comments
 
LVL 86

Accepted Solution

by:
CEHJ earned 20 total points
ID: 9837208
scrollpane = new JScrollPane(dataTable);

is quite right. The scrollbars will only appear if they need to unless you set them to always appear.

0
 
LVL 86

Expert Comment

by:CEHJ
ID: 9837225
scrollpane = new JScrollPane(dataTable, JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);

I would use subclass of DefaultTableModel rather than AbstractTableModel as the latter contains a few gotchas.
0
 
LVL 86

Expert Comment

by:CEHJ
ID: 9837228
Oops - the constants should be the other way around!
0
Independent Software Vendors: We Want Your Opinion

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

 
LVL 7

Assisted Solution

by:grim_toaster
grim_toaster earned 20 total points
ID: 9837540
CEHJ is correct, in that your code would work.  However, I've had problems in the past where the horizontal scroll bar doesn't always appear when you would expect it to (with the table).  Instead of allowing you to scroll using a scroll bar (this is true even if you set it to always show), it will resize all of the columns to fit into the space available (the vertical scroll bar is fine though).

To get around it you can indicate that you do not want your table to resize inside the scroll pane, by using:
        dataTable.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
0
 

Author Comment

by:deena18
ID: 9844768
thankx grim_toaster and CEHJ for your solutions :)
0
 
LVL 86

Expert Comment

by:CEHJ
ID: 9845129
:-)
0

Featured Post

Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying 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
Tomcat: Unable to run tomcat service. 2 28
pagenation logic how it is working in my code 1 69
jmeter usage 4 31
activeMQ Queue Messages Enqueued and Messages Dequeued 1 24
Java contains several comparison operators (e.g., <, <=, >, >=, ==, !=) that allow you to compare primitive values. However, these operators cannot be used to compare the contents of objects. Interface Comparable is used to allow objects of a cl…
Basic understanding on "OO- Object Orientation" is needed for designing a logical solution to solve a problem. Basic OOAD is a prerequisite for a coder to ensure that they follow the basic design of OO. This would help developers to understand the b…
Viewers learn about the scanner class in this video and are introduced to receiving user input for their programs. Additionally, objects, conditional statements, and loops are used to help reinforce the concepts. Introduce Scanner class: Importing…
Viewers will learn how to properly install Eclipse with the necessary JDK, and will take a look at an introductory Java program. Download Eclipse installation zip file: Extract files from zip file: Download and install JDK 8: Open Eclipse and …

679 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