fixes up a bug (#35)

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Tian L 2021-05-25 11:41:25 +08:00 committed by GitHub
commit b6bd422685
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@ -552,7 +552,7 @@ namespace CalculatorApp
private void ShowAboutPage() private void ShowAboutPage()
{ {
if (AboutPage != null) if (AboutPage == null)
{ {
FindName("AboutPage"); FindName("AboutPage");
} }