using Autodesk.Revit.DB; using Autodesk.Revit.UI; namespace ShrlAlgoToolkit.RevitCore.Assists; /// /// 图纸视图可用 /// internal class EnableInViewSheet : IExternalCommandAvailability { public bool IsCommandAvailable(UIApplication applicationData, CategorySet selectedCategories) => applicationData.ActiveUIDocument?.Document.ActiveView is ViewSheet && applicationData.ActiveUIDocument?.Document.IsFamilyDocument == false; }