Bug 140985 Cancel button in parameter dialog doesn't work
Description: Cancel button in parameter dialog doesn't work Steps to reproduce: 1. New a parameter 2. Preview and click Cancel Expected result: Transfer to layout Actual result: Nothing happened.
UI/org.eclipse.birt.report.designer.ui.preview/src/org/eclipse/birt/report/designer/ui/preview/editors/ReportPreviewFormPage.java
if ( getEditorInput( ) != prePage.getEditorInput( ) )
		{
			setInput( prePage.getEditorInput( ) );
		}
		if ( prePage.isDirty( ) )
		{
			prePage.doSave( null );
		}
		
		if ( isMissingParameter( ) )
		{
			if ( parameterDialog != null )
			{
				parameterDialog.open( );
				
				
				if ( parameterDialog.getReturnCode( ) == InputParameterHtmlDialog.RETURN_CODE_BROWSER_CLOSED )
				{
					isDisplay = true;
				}
			}
		}
		else
		{
			isDisplay = true;
		}
		if ( isDisplay )
		{
			display( );
		}