添加项目文件。

MetroGauges/ViewModel/DgViewModel.cs

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+using MetroGauges.Model;
+using netDxf;
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.ComponentModel;
+using System.Linq;
+using System.Runtime.CompilerServices;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MetroGauges.ViewModel
+{
+    public class DgViewModel<T>
+    {
+        public DgViewModel()
+        {
+            Items = CreateData();
+            DataType = DataTypes.KineModel;
+            Color = AciColor.Blue;
+        }
+
+        public DataTypes DataType { get; set; }
+        //private bool? _isAllItemsSelected;
+
+        public AciColor Color { get; set; }
+
+        public string LayerName {get;set;}
+
+        public ObservableCollection<T> Items { get; set; }
+        //public bool? IsAllItemsSelected
+        //{
+        //    get { return _isAllItemsSelected; }
+        //    set
+        //    {
+        //        if (_isAllItemsSelected == value) return;
+
+        //        _isAllItemsSelected = value;
+
+        //        if (_isAllItemsSelected.HasValue)
+        //            SelectAll(_isAllItemsSelected.Value, Items);
+
+        //        OnPropertyChanged();
+        //    }
+        //}
+
+        //private static void SelectAll(bool select, IEnumerable<T> models)
+        //{
+        //    foreach (var model in models)
+        //    {
+        //        model.IsSelected = select;
+        //    }
+        //}
+        private ObservableCollection<T> CreateData()
+        {
+            return new ObservableCollection<T>
+            {
+                //new CurEquiModel("受电弓","0",0,0)
+            };
+        }
+        public event PropertyChangedEventHandler PropertyChanged;
+
+        protected virtual void OnPropertyChanged([CallerMemberName] string propertyName = null)
+        {
+            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
+        }
+        public IEnumerable<string> StrPositions
+        {
+            get
+            {
+                if (typeof(T) == typeof(KineModel))
+                {
+                    yield return "受电弓";
+                    yield return "车体";
+                    yield return "转向架构架";
+                    yield return "簧下";
+                    yield return "踏面";
+                    yield return "轮缘";
+                    yield return "受流器";
+                }
+                else if (typeof(T) == typeof(LiEquiModel))
+                {
+                    yield return "受电弓";
+                    yield return "车体顶部";
+                    yield return "车体底架边梁以上";
+                    yield return "车体底架边梁及以下";
+                    yield return "转向架";
+                    yield return "车下轨内吊挂";
+                    yield return "车下轨外吊挂";
+                    yield return "轮对";
+                    //yield return "车下轨内";
+                    //yield return "车下轨外";
+                }
+                else
+                {
+                    yield return "受电弓";
+                    yield return "车体";
+                    yield return "转向架构架";
+                    yield return "受流器";
+                }
+            }
+        }
+    }
+}