Question

Is it possible to set width of a JTable column within its cell renderer? I have tried following code but it seems to do nothing.

//in main class where table defined;

table.getColumnModel().getColumn(0).setCellRenderer(renderer);

//in renderer class;

setSize(10, getPreferredSize().height); 

Answer 1

1) its possible to set JTable Column's width this(very simple) way

TableColumnModel tcm = myTable.getColumnModel();
tcm.getColumn(0).setPreferredWidth(int);

2) I suggesting don’t do that inside TableRenderer,

• because I don’t see reason for repainting that every time when is Renderer fired

• and from your code that you posted here not really clear for me what / how / where / why