windows runtime - Performance issue when show RichTextBlock inside ScrollViewer -

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i have richtextblock in scrollviewer, when content of richtextblock long, there serious performance issue. fyi, actual height of richtextblock 580000. how can solve problem?

imho, richtextbox should support virtualization out of box. if still face performace issue should consider third-party vendors telerik, syncfusion or devexpress.


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