Hello Wang,
By default RadDiagram saves only a predefined set of properties. The Opacity property of the shapes is not one of them. In order to serialize/deserialize the opacity or any other property not presented in the list you will need to do it manually via the ShapeSerialized and ShapeDeserialized events of the diagram. You can see how to do this in the Serialization help article.
Regards,
Martin
Telerik by Progress
By default RadDiagram saves only a predefined set of properties. The Opacity property of the shapes is not one of them. In order to serialize/deserialize the opacity or any other property not presented in the list you will need to do it manually via the ShapeSerialized and ShapeDeserialized events of the diagram. You can see how to do this in the Serialization help article.
Regards,
Martin
Telerik by Progress
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