Bug 209106 BIRT - User properties defined in a library are not seen in properties view
In the attached library there is a grid container. The text control and the row of the table in the grid have two user properties each. We can see them in the library but not when we drag them in to a design. The property does not show up in the properties view
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/core/DesignElement.java
}
	/**
	 * Checks the parent element.
	 * 
	 * @param parent
	 *            the parent element
	 * @throws ExtendsException
	 *             throws <code>ExtendsException</code> if the parent element
	 *             is <code>NOT_FOUND</code>,<code>WRONG_TYPE</code>,
	 *             <code>SELF_EXTEND</code>,<code>CIRCULAR</code>.
	 */
	public void checkExtends( DesignElement parent ) throws ExtendsException
	{
		String extendsName = getExtendsName( );
		IElementDefn defn = getDefn( );
		if ( parent == null )
		{
			throw new InvalidParentException( this, extendsName,
					InvalidParentException.DESIGN_EXCEPTION_PARENT_NOT_FOUND );
		}
		else if ( !defn.canExtend( ) )
		{
			throw new ExtendsForbiddenException( this, parent.getName( ),
					ExtendsForbiddenException.DESIGN_EXCEPTION_CANT_EXTEND );
		}
		else if ( parent.getDefn( ) != defn )
		{
			throw new WrongTypeException( this, parent,
					WrongTypeException.DESIGN_EXCEPTION_WRONG_TYPE );
		}