Bug 167210 No change in 'TOC Item Expression' after select a group row[0001]
Description: No change in 'TOC Item Expression' after select a group row[0001] Build number: 2.2.0.v20061208-1310 Steps to reproduce: 1, Drag a dataset into layout 2, Select the table and insert a group on it. 3, In New Group, select a row as group row 4, Check the 'TOC Item Expression' Expected result: The row["XXXX"] in 'TOC Item Expression' after selecting 'Group On' Actual result: There is still blank in 'TOC Item Expression' Error log:
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/GroupDialog.java
if ( event.text.length( ) <= 0 )
				{
					return;
				}
				int beginIndex = Math.min( event.start, event.end );
				int endIndex = Math.max( event.start, event.end );
				String inputtedText = intervalRange.getText( );
				String newString = inputtedText.substring( 0, beginIndex );
				newString += event.text;
				newString += inputtedText.substring( endIndex );
				event.doit = false;
				try
				{
					double value = Double.parseDouble( newString );
					if ( value >= 0 )
					{
						event.doit = true;
					}
				}
				catch ( NumberFormatException e )
				{
					return;
				}
			}
		} );
		
		intervalBaseButton = new Button( composite, SWT.CHECK );
		intervalBaseButton.setText( GROUP_DLG_INTERVAL_BASE_LABEL ); 
		intervalBaseButton.setLayoutData( new GridData( GridData.FILL_HORIZONTAL ) );
		intervalBaseButton.addSelectionListener( new SelectionAdapter( ) {