Bug 145021 Enhance the agrregate on option in column binding dialog
1. Check if the expression is aggregate expression by data utility class. 2. If yes, the option is ?all? and group name list 3. if not, the option disabled (or set to none?) if the column binding is in detail row. If the column binding is in group row, the option is ?None? and group name list.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/ColumnBindingDialog.java
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.CLabel;
import org.eclipse.swt.events.KeyAdapter;
import org.eclipse.swt.events.KeyEvent;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Item;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;
import org.eclipse.swt.widgets.TableItem;
import org.eclipse.ui.ISharedImages;
import org.eclipse.ui.PlatformUI;
/**
 * The dialog to select and edit column bindings
 */
public class ColumnBindingDialog extends BaseDialog
{
	private static final String DEFAULT_COLUMN_NAME = "[result_set_col_name]"; 
	private static final String dummyChoice = "dummy"; 
	public static final String DEFAULT_DLG_TITLE = Messages.getString( "ColumnBindingDialog.DialogTitle" ); 
	private static final String CHOICE_ALL = Messages.getString( "ColumnBindingDialog.Choice.All" );
	private static final String CHOICE_FROM_CONTAINER = Messages.getString( "ColumnBindingDialog.Choice.FromContainer" );