code: private void gridmatrixUserSizeActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_gridmatrixUserSizeActionPerformed
          // TODO add your handling code here:
          gridmatrixUserSizeCombo.setEnabled(true);
          gridmatrixUserEccCombo.setEnabled(false);
          encodeData();
      }
docs: GEN-LAST:event_gridmatrixAutoSizeActionPerformed