修改命名空间

ShrlAlgoToolkit.RevitCore/Assists/EnableInViewPlan.cs

@@ -0,0 +1,16 @@
+using Autodesk.Revit.DB;
+using Autodesk.Revit.UI;
+
+namespace ShrlAlgoToolkit.RevitCore.Assists;
+
+/// <summary>
+///     命令在平面视图可用
+/// </summary>
+public class EnableInViewPlan : IExternalCommandAvailability
+{
+    public bool IsCommandAvailable(UIApplication applicationData, CategorySet selectedCategories)
+    {
+        return applicationData.ActiveUIDocument?.Document.ActiveView is ViewPlan
+               && applicationData.ActiveUIDocument?.Document.IsFamilyDocument == false;
+    }
+}