Bug 200919 Add quotation for column containing separator character when export data.[0002]
Description: Add quotation for column containing separator character when export data. Build number:2.2.1.v20070823 Steps to reproduce: 1. New sample data source and dataset. 2. Add a computed column with name a,b and value "a,b". 3. Drag the dataset to Layout. 4. Preview in Web Viewer and Export Data with Comma. Expected result: Column name is quoated as values. Actual result: Column name a,b isn't quotated so it will be treated as two columns. Error log:n/a
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/ReportEngineService.java
}
	/**
	 * Returns the element handle which can save binding columns the given
	 * element
	 * 
	 * @param handle
	 *            the handle of the element which needs binding columns
	 * @return the holder for the element,or itself if no holder available
	 */
	private ReportItemHandle getBindingHolder( DesignElementHandle handle )
	{
		if ( handle instanceof ReportElementHandle )
		{
			if ( handle instanceof ListingHandle )
			{
				return (ReportItemHandle) handle;
			}
			if ( handle instanceof ReportItemHandle )
			{
				if ( ( (ReportItemHandle) handle ).getDataSet( ) != null
						|| ( (ReportItemHandle) handle )
								.columnBindingsIterator( ).hasNext( ) )
				{
					return (ReportItemHandle) handle;
				}
			}
			ReportItemHandle result = getBindingHolder( handle.getContainer( ) );
			if ( result == null && handle instanceof ReportItemHandle )
			{
				result = (ReportItemHandle) handle;