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    <p>Perhaps your problem was the <code>getColumnClass()</code> returning null instead of <code>Object.class</code></p> <p>Use AbstractTableModel as your base class. This way you won't need so many methods. As it is you have just started to handle all the event stuff needed. If you want to do it, copy that code from 'AbstractTableModel` using either the Oracle/Sun source or some other source. Here is some source for some version that will give you and idea of how much code there is to handle the events: <a href="http://developer.classpath.org/doc/javax/swing/table/AbstractTableModel-source.html" rel="nofollow">Java Source for AbstractTableModel</a></p> <pre><code>public class MyTableModel extends AbstractTableModle { private MyDataClass myData; // holds the cell data private static final String[] colNames = {"bla", "blabla", "hola", "hej", "egle", "begle", "eciepecie"}; public MyTableModel(MyDataClass val) { myData = val; myData.data = new Object[7][7]; } @Override public int getColumnCount() { return myData.data.length; } @Override public int getRowCount() { return myData.data[0].length; } @Override public Object getValueAt(int arg0, int arg1) { return myData.data[arg0][arg1]; } @Override public String getColumnName(int columnIndex) { return colNames[columnIndex]; } @Override public boolean isCellEditable(int rowIndex, int columnIndex) { if (rowIndex == columnIndex) return false; else return true; } @Override public void setValueAt(Object aValue, int rowIndex, int columnIndex) { myData.data[columnIndex][rowIndex] = aValue; } } </code></pre>
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    1. COThanks for your attention. I considered that. I decided to implement `TableModel` instead of extending `AbstractTableModel` intentionally. MyDataClass is a convenient conatainer for my data and it only needs a few aditional methods. Extending `AbstractTableModel` would force me to rewrite much code with no purpouse...
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    2. COIt's a lot cleaner when the event handling isn't in your code. Try the idea about the data class I put on the first line if you really want to go that way.
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    3. COI don't truly handle events in my code, do I? I only manage listeners... Your sollution works fine, thanks a lot! :)
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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