// After that, adding it in the vector for the future usage.
private void doDiscover()
{
try
{
port=new RexXMLAPort(new URL(txtURL.getText().trim()));
final String [] dsn=port.discoverDataSourcesAsString(restriction,dProperties);
cmbDataSource.removeAllItems();
for(int j=0;j<dsn.length;j++)
{
cmbDataSource.addItem(dsn[j]);