Bug 193895 Can not select the data cube in advanced and properties[1102]
Description: Can not select the data cube in advanced and properties[1102] Step: 1.New a report design, datasource, dataset, data cube 2.New a cross table 3.Switch Property Editor - Advanced 4.Switch Properties Actual result: Select the Cube selection and spread the drop down list, no data cube in it. Exception result: It can select the data cube in advance or properties
model/org.eclipse.birt.report.model/src/org/eclipse/birt/report/model/api/PropertyHandle.java
isReadOnly = true;
					break;
				case IPropertyDefn.EXTENSION_MODEL_PROPERTY :
					if ( propDefn.isReadOnly( ) )
						isReadOnly = true;
					break;
			}
		}
		if ( isReadOnly )
			return true;
		return isReadOnlyInContext( );
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.birt.report.model.api.SimpleValueHandle#isVisible()
	 */
	public boolean isVisible( )
	{
		boolean isVisible = true;
		switch ( propDefn.getValueType( ) )
		{
			case IPropertyDefn.SYSTEM_PROPERTY :
			case IPropertyDefn.EXTENSION_PROPERTY :
			case IPropertyDefn.ODA_PROPERTY :
				IElementDefn elementDefn = getElementHandle( ).getDefn( );
				if ( !elementDefn.isPropertyVisible( propDefn.getName( ) ) )
					isVisible = false;
				break;
			case IPropertyDefn.EXTENSION_MODEL_PROPERTY :