Thread: Table with CustomModel when clicked shows old entry

Hi,

I have a problem with a Table using a CustomModel I have created.
The first time everything works fine, but whenever I re-create the Table and the user clicks on it, the content of the table changes into the old ones.

Here is a part of the code.
I cannot provide a SSCE for the moment, but I can give an idea of the whole thing.

private static void showResults() {
 
		// Creating JTable
		CustomTable Table = new CustomTable();
 
	}
 
 
	public static class CustomTable extends JPanel {
 
		public CustomTable() {
 
 
			CustomTableModel TableModel = new CustomTableModel();
 
 
			JTable Table = new JTable(TableModel);
 
			// Create the scroll pane and add the table to it.
			JScrollPane scrollPane = new JScrollPane(Table);
 
			Table.setFocusable(false);
 
			// Add the scroll pane to this frame
			Frame.add(scrollPane, BorderLayout.CENTER);
			scrollPane.setBounds(100, 300, 600, 250);
 
		}
 
		class CustomTableModel extends AbstractTableModel {
 
 
 
			private String rows[][] = Search();
 
			private String headers[] = { "", "", "", "", ""};
 
			public int getColumnCount() {
				return headers.length;
			}
 
			public int getRowCount() {
				return rows.length;
			}
 
			public String getColumnName(int col) {
				return headers[col];
			}
 
			public Object getValueAt(int row, int col) {
				return rows[row][col];
			}
 
			// Table not editable
			public boolean isCellEditable(int row, int col) {
 
				return false;
 
			}
 
 
		}

Basically I recreate the Table every time the user clicks on a button for searching. The results are correct but whenever I click on the table, the cell/row I click on changes its values on the first one.

I also tried to remove the possibility of selecting an item of the Table, but the problem still remains.


I also tried to remove it from the Frame (using Frame.remove(Table) ) and revalidate it. Also repaint and so on. Also tried to remove all the content of the Table before recreating a new one, but nothing...

the cell/row I click on changes its values on the first one

Try overriding the setValueAt in AbstractTableModel to set the appropriate value

See the API for AbstractTableModel - that is not overriding the setValueAt method.

Originally Posted by Nesh108

Hi,

 
		class CustomTableModel extends AbstractTableModel {
 
			private String rows[][] = Search();
 
 
		}

The above section caused the problem. The rows object is initialized only once by the Search() function. You should re-design the CustomTableModel, for example, adding some methods to update the search result.

java exception

Thanks!!!!
Oh finally!!!

here how I fixed the problem:

 
			//Update
			public void updateResult(){
 
				rows =Search();
 
				this.fireTableDataChanged();
 
 
			}

In this way I do not re-create the table each time I search for new results.