添加项目文件。

RevitKits/MetroGauges/LandXMLData/GenerationRangeInstance.cs

@@ -0,0 +1,23 @@
+using System.Xml.Serialization;
+
+namespace ShrlAlgoToolkit.RevitAddins.RvIndependent.MetroGauges.LandXMLData
+{
+    [XmlType]
+    [Serializable]
+    public abstract class GenerationRangeInstance : GenerationRange, IGenerationRangeInstance, IGenerationRange, IInstance
+    {
+        protected GenerationRangeInstance()
+        {
+            _instance = -1;
+        }
+
+        protected int _instance;
+
+        [XmlAttribute("i")]
+        public int Instance
+        {
+            get => _instance;
+            set => _instance = value;
+        }
+    }
+}