Bug 113938 Report is marked dirty when open/close cascading parameter dialog without doing any operation on it
description: Report is marked dirty when open/close cascading parameter dialog without doing any operation on it steps to reproduce: 1.new a cascading parameter group 2.save the reprot 3.double click the cascading parameter to bring out edit box 4.click OK to close edit box actual result: Report has been marked dirty expected result: No dirty marked for that no operations done in edit parameter dialog
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/CascadingParametersDialog.java
layout.marginHeight = 0;
		limitArea.setLayout( layout );
		data = new GridData( GridData.FILL_HORIZONTAL );
		data.verticalSpan = 2;
		limitArea.setLayoutData( data );
		listLimit = new Text( limitArea, SWT.BORDER );
		listLimit.setLayoutData( new GridData( ) );
		listLimit.addVerifyListener( new VerifyListener( ) {
			public void verifyText( VerifyEvent e )
			{
				e.doit = ( "1234567890\0".indexOf( e.character ) != -1 ); 
			}
		} );
		listLimit.addModifyListener( new ModifyListener( ) {
			public void modifyText( ModifyEvent e )
			{
				if ( selectedParameter != null
						&& selectedParameter != newParameter )
				{
					try
					{
						if ( StringUtil.isBlank( listLimit.getText( ) ) )
						{
							selectedParameter.setProperty( ScalarParameterHandle.LIST_LIMIT_PROP,
									null );
						}
						else
						{
							selectedParameter.setListlimit( Integer.parseInt( listLimit.getText( ) ) );
						}