Bug 131628 Dynamic pick list enhancements - BIRT designer UI changes
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/CascadingParametersDialog.java
{
			dataSetsCombo.setText( "" + dataSet.getName( ) ); 
		}
		else
		{
			dataSetsCombo.select( 0 );
			dataSet = getDataSet( dataSetsCombo.getText( ) );
		}
		cascadingNameEditor.setText( inputParameterGroup.getName( ) );
		valueTable.setInput( inputParameterGroup );
		refreshParameterProperties( );
		updateButtons( );
		return true;
	}
	
	protected void okPressed( )
	{
		try
		{
			saveParameterProperties( );
			inputParameterGroup.setName( cascadingNameEditor.getText( ) );
			inputParameterGroup.setDataSet( dataSet );
		}
		catch ( SemanticException e )
		{
			ExceptionHandler.handle( e );
			refreshParameterProperties( );
			return;
		}
		setResult( inputParameterGroup );