more extensions

Pilz.UI/Extensions/FlyoutBaseExtensions.cs

@@ -0,0 +1,12 @@
+using Pilz.UI.Dialogs;
+using System.Diagnostics.CodeAnalysis;
+
+namespace Pilz.UI.Extensions;
+
+public static class FlyoutBaseExtensions
+{
+    public static bool IsValid([NotNullWhen(true)] this FlyoutBase @this)
+    {
+        return @this != null && @this.Result == DialogResult.OK;
+    }
+}