Make a column non-editable in a JTable

Question

I created a MasterDetail Simple Form using Netbeans, and I have a JTable which is related to the database.

I want to edit a column in this JTable to make it non-editable.

I Googled about it and this all I can find :

this.masterTable.getColumn("Validation").setEditable(false);

which won't work with me !

Possible duplicate of [Java JTable - Make only one column editable](https://stackoverflow.com/questions/8167173/java-jtable-make-only-one-column-editable) — Line, Aug 07 '18 at 17:06

camickr · Answer 1 · 2017-04-26T02:46:07.807

11

Override the isCellEditable(...) method of the TableModel.

DefaultTableModel model = new DefaultTableModel(...)
{
    @Override 
    public boolean isCellEditable(int row, int column)
    {
        // add your code here
    }
}

JTable table = new JTable( model );

edited Apr 26 '17 at 02:46

answered May 28 '13 at 20:58

camickr

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I can't override the isCellEditable(...) method, because my object extends the JTable class directly. – Azer Rtyu May 28 '13 at 21:14
i have used it but my cell is still editable, i have write inside isCellEditable return column==4 but all cells in the table are still editable, why? – mautrok Nov 13 '16 at 11:36
@mautrok I just edited the code. There was a typo. The class should return "boolean" not "Boolean". Maybe that is the problem. If not I can't help because I can't guess what your code looks like. If you need more help then ask a question and post a proper [SSCCE](http://sscce.org/) that demonstrates the problem. – camickr Nov 13 '16 at 18:30

score 5 · Answer 2 · edited Mar 13 '14 at 15:01

5

Disabling user edits on JTable for multiple columns

JTable table = new JTable(10, 4) {
    @Override
    public boolean isCellEditable(int row, int column) {
        return column == 3 || column==4 || column==5 ? true : false;
    }
};

edited Mar 13 '14 at 15:01

krystan honour

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answered May 29 '13 at 08:13

Amarnath

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score 4 · Answer 3 · answered May 28 '13 at 21:36

4

I found the solution using GUI :

Right-click on the table cells.
From popup menu, choose "Table Contents..".
Uncheck the editable check box for the column you want to make it non-editable.

enter image description here

answered May 28 '13 at 21:36

Azer Rtyu

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6

Don't use `GUI Editors` for UI building you cannot learn much. Instead code it yourself. – Amarnath May 29 '13 at 09:03
@Amarnath why reinvent the wheel ? – Jul 20 '19 at 05:35

score 2 · Answer 4 · answered Feb 16 '16 at 05:36

Here is solution if you are extending JTable directly:(place this code in constructor)

DefaultTableModel tableModel = new DefaultTableModel(data, colNames){

        @Override
        public boolean isCellEditable(int row, int column)
        {
            // make read only fields except column 0,13,14
            return column == 0 || column == 13 || column == 14;
        }
    };

this.setModel(tableModel);

score 1 · Answer 5 · answered May 28 '13 at 21:02

1

isCellEditable()

Here is the Javadoc: isCellEditable(int, int) is the method you want. If you are using a TableModel then this method can then be overridden in the subclass of the TableModel for that JTable instance.

answered May 28 '13 at 21:02

blackpanther

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I don't know how to use it. – Azer Rtyu May 28 '13 at 21:05

score 0 · Answer 6 · answered May 01 '20 at 19:18

If the jtable name is wordListJTable:

        String colTitles[] = {"#", "Word", "Definiton"};
        boolean[] isEditable = {false,true,true};
        wordTableModel = new DefaultTableModel(colTitles, 0) {
            @Override
            public boolean isCellEditable(int row, int column) {
                // make read only fields except column 0,13,14
                return isEditable[column];
            }
        };
        // The 0 argument is number rows. 
        wordListJTable.setModel(wordTableModel);

Make a column non-editable in a JTable

6 Answers6