调整列宽以动态适应 JTable 中 JScrollPane 内的内容

Question

I'm currently using this code (taken from here ) to resize columns width, which is working, the table cells are not editable, the content is added dynamically using a DefaultTableModel, but if a row width is greater than the table, it doesn't use the scroll panel.

This is my table definition

JScrollPane jScrollPane1 = new JScrollPane();
JTable jTable = new JTable();

jTable.setModel(new DefaultTableModel(
   new Object [][] {
   },
         
   new String [] {
      "COLUMN1", "COLUMN2"
   }) {
      Class[] types = new Class [] {
         String.class, String.class
      };

      boolean[] canEdit = new boolean [] {
         false, false
      };

      public Class getColumnClass(int columnIndex) {
         return types [columnIndex];
      }

      public boolean isCellEditable(int rowIndex, int columnIndex) {
         return canEdit [columnIndex];
      }
});

TableColumnAdjuster tblAdjuster = new TableColumnAdjuster(jTable);
tblAdjuster.setDynamicAdjustment(true);

jScrollPane1.setViewportView(jTable);

Are they any suggestions?

Answer 1

I already solved it by following the rule defined by the developer of the code I used:

Note, that this class was designed to be used with tables that use an auto resize mode of AUTO_RESIZE_OFF. With all other modes you are constrained, as the width of the columns must fit inside the table. So if you increase the width of one column, the widths of one or more of the other columns must decrease. Because of this, the resize mode of RESIZE_ALL_COLUMNS will work the best.

So I have to set the AutoResizeMode to OFF before the creation of the TableColumnAdjuster instance:

jTable.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);