VisualAddCustomProperty Method

Add a custom property to the visual. If the custom property already exists, then this call will update its value and description.

Add a custom property to the visual. If the custom property already exists, then this call will update its value, type and description. <p> <strong>Note</strong>: For most uses, <code>AddCustomProperty(name,value,description)</code> or <code>AddSimpleProperty(name,value,description)</code> is more suitable, because there is no need to pass the type parameter; it is taken automatically from the value.