IInvalidatableElement
StockSharp.Xaml.Charting.Visuals
Types which implement IInvalidatableElement can be invalidated (redrawn)
方法
InvalidateElement()
Asynchronously requests that the element redraws itself plus children. Will be ignored if the element is ISuspendable and currently IsSuspended (within a SuspendUpdates/ResumeUpdates call)