Problem of JTable and the JComboBox cell editor.

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MaoXuePeng - 09 Oct 2004 12:20 GMT

I made a JTable object named tabel And set one of its columns with
JComboBox as CellEditor. When mouse clicked on the JComboBox cell, code
"table.getSelectedRow()" returns -1, and not return the row number until I
selected one of the JComboBox's items. What Wrong?

Now I want to get the row number with "table.getSelectRow" while clicked
on the JComboBox cell immediately, how can I do?

Thanks.
MaoXuePeng

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Tor Iver Wilhelmsen - 09 Oct 2004 13:03 GMT

> I made a JTable object named tabel And set one of its columns with
> JComboBox as CellEditor. When mouse clicked on the JComboBox cell,
> code "table.getSelectedRow()" returns -1, and not return the row
> number until I selected one of the JComboBox's items. What Wrong?

Sounds like you test the value before the row is actually selected in
the model.

> Now I want to get the row number with "table.getSelectRow" while
> clicked on the JComboBox cell immediately, how can I do?

You need to "wait" until the model has been updated. Where do you call
getSelectedRow() in your code? If you use a custom CellEditor, use the
passed row index in getTableCellEditorComponent().

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MaoXuePeng - 10 Oct 2004 02:08 GMT

> Where do you call getSelectedRow() in your code?

I call getSelectedRow in the function "actionPerformed(ActionEvent event)"
of the JComboBox.
The problem is : When clicked on the JComboBox column, then fired a action
event, but the "getSelectedRow()" returns -1.

> Sounds like you test the value before the row is actually > selected in

the model.

You mean When clicked on the JComboBox column, the table model didn't know
a row was selected? But, actually, there is a row in the table was
selected.

How can I get the row number when click on the JComboBox column by
"getSelectedRow()" in the "actionPerformed()" function?

Thanks!
MaoXuePeng.

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Christian Kaufhold - 14 Oct 2004 15:44 GMT

> I made a JTable object named tabel And set one of its columns with
> JComboBox as CellEditor. When mouse clicked on the JComboBox cell, code
[quoted text clipped - 3 lines]
> Now I want to get the row number with "table.getSelectRow" while clicked
> on the JComboBox cell immediately, how can I do?

Please post compilable code that clarifies what you want to do.

Christian

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And in short, I was afraid.

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Problem of JTable and the JComboBox cell editor.

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