Bug 140751 using a grid in a table does not update row value
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/dnd/InsertInLayoutUtil.java
*/
	public static boolean handleValidateInsert( Object insertObj )
	{
		if ( insertObj instanceof Object[] )
		{
			Object[] array = (Object[]) insertObj;
			if ( array.length == 0 )
			{
				return false;
			}
			for ( int i = 0; i < array.length; i++ )
			{
				if ( !handleValidateInsert( array[i] ) )
					return false;
			}
			return true;
		}
		else if ( insertObj instanceof IStructuredSelection )
		{
			return handleValidateInsert( ( (IStructuredSelection) insertObj ).toArray( ) );
		}
		
		
		
		
		
		
		return insertObj instanceof DataSetHandle
				|| insertObj instanceof ResultSetColumnHandle
				|| insertObj instanceof ScalarParameterHandle;