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Pagination of a Jtable

Posted on 2007-11-16
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Last Modified: 2013-11-23
I need some assistance with a jtable.  I have a panel that displays a jtable and the jtable is displaying the first 100 records.  I need to implement pagination but not sure how to go about it.  I want to have a next and previous button and just display 100 records at a time.  Right now there are only about 400 records but it will probably grow in the future.  So far I programmed one button and it returns 100 records but it appends it on to the existing table and I am not sure how to not do that. I found an article on JavaWorld about pagination but it wasnt working for me.  Any suggestions?  Thanks.
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Question by:bolts123
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6 Comments
 
LVL 92

Expert Comment

by:objects
ID: 20301467
you need to either clear your model before adding new rows, or create a new one
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Author Comment

by:bolts123
ID: 20301689
I tried clearing the model, I tried repainting and revalidating the table and creating a new one and it doesn't  help.  I am probably doing it wrong since I am fairly new at using jtables.  Could you give me an example?
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LVL 92

Expert Comment

by:objects
ID: 20301735
post the code that loads the next page and i'll check what ur doing wrong
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Author Comment

by:bolts123
ID: 20301788
public void nextRecords()
      {      
            
            testTableModel = new DefaultTableModel();
            testTable.repaint();
            testTable.revalidate();
            
            
            String base = getAddress()+
            getfirstName() + "&" +
            getLastName()+ "&" +
            getPageOffset();
            xmlDoc(base);
            
               
            String[][] Table = getTable("info");
            Object[] Column = new Object[Table.length];
            
            
            
        
            if(Table.length > 0)
            {      
            for(int i = 0; i < headers.length; i++)
            {
            for(int j = 0; j < Table.length ; j++)
            {
                  if(headersi] == 8 || headers[i] == 9)
                  {
                        Column[j] = Table[j][headers[i]].substring(0, 10);
                  }
                  else
                  {
                        Column[j] = Table[j][headers[i]];
                  }
            }
                  
                  testTableModel.addColumn(columnNames[headers[i]], Column);
                  
                  fireTableDataChanged();
                  
                                                      
            }
                  
                  
      }
      
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LVL 92

Accepted Solution

by:
objects earned 1000 total points
ID: 20301811
public void nextRecords()
      {      
           
            testTableModel = new DefaultTableModel();
             String base = getAddress()+
            getfirstName() + "&" +
            getLastName()+ "&" +
            getPageOffset();
            xmlDoc(base);
           
               
            String[][] Table = getTable("info");
            Object[] Column = new Object[Table.length];
           
           
           
       
            if(Table.length > 0)
            {      
            for(int i = 0; i < headers.length; i++)
            {
            for(int j = 0; j < Table.length ; j++)
            {
                  if(headersi] == 8 || headers[i] == 9)
                  {
                        Column[j] = Table[j][headers[i]].substring(0, 10);
                  }
                  else
                  {
                        Column[j] = Table[j][headers[i]];
                  }
            }
                 
                  testTableModel.addColumn(columnNames[headers[i]], Column);
                                                     
            }
                 
          testTable.setModel(testTableModel);          
      }
0
 

Author Comment

by:bolts123
ID: 20301875
That worked.  Thanks.  
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