Bug 168148 [regression]Table with chart from library fails to preview.[01][0001]
Description: Table with chart from library fails to preview. Build number:2.1.2.v20061215 and 2.2.0.v20061213 Steps to reproduce: 1.Create a library, create a sample DB data source and data set: select * from orders 2.Insert a tabel to the library, bind data set to the table 3.Insert a group for the tabel ,group by "row["OrderDate"]", Interval: Year, Range:1 4.Drag a chart into 3rd cell on group row, bar chart, go to "Select Data" tab , bind data set, X Series:row["OrderDate"], Y Series:row["OrderNumger"]; click "Finish" button 5.Create a new report, use the library 6.Drag the table in the library to the report. 7.Preview in html. Expected Result: Report content displays without errors. Actual result: Error happened while running the report.(same for 2.1.2 and 2.2.0) Error log: org.eclipse.birt.report.service.api.ReportServiceException: Error happened while running the report
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/util/ModelUtil.java
}
	/**
	 * Checks whether the compound element is valid.
	 * <p>
	 * If the table/grid has no rows and columns, its layout is invalid.
	 * 
	 * @param module
	 *            the root module of the element
	 * @param element
	 *            the element to check
	 * 
	 * @return <code>true</code> if the compound element is valid. Otherwise
	 *         <code>false</code>.
	 */
	public static boolean isValidLayout( Module module, DesignElement element )
	{
		if ( !( element instanceof ReportItem ) )
			return true;
		if ( !element.getDefn( ).isContainer( ) )
			return true;
		if ( element instanceof TableItem )
			return LayoutUtil.isValidLayout( (TableItem) element, module );
		if ( element instanceof GridItem )
		{
			int columnCount = ( (GridItem) element ).getColumnCount( module );
			if ( columnCount == 0 )
				return false;
		}
		return true;
	}