添加项目文件。

MSDevTool/Views/SelectByElementId.xaml.cs

@@ -0,0 +1,55 @@
+using System;
+using System.Windows;
+
+using Bentley.DgnPlatformNET;
+using Bentley.MstnPlatformNET;
+
+namespace MSDevTool.Views
+{
+    /// <summary>
+    /// SelectByElementId.xaml 的交互逻辑
+    /// </summary>
+    public partial class SelectByElementId : Window
+    {
+        public SelectByElementId()
+        {
+            InitializeComponent();
+        }
+
+        private void Button_Click(object sender, RoutedEventArgs e)
+        {
+            var dgnModel = Session.Instance.GetActiveDgnModel();
+            var splitStrs = TbElementId.Text.Split(',', ' ', '，', ';', '；');
+            if (splitStrs.Length == 0)
+            {
+                return;
+            }
+            //ElementAgenda agenda = new ElementAgenda();//声明元素容器
+            //agenda.Empty(true);
+            SelectionSetManager.EmptyAll();
+            foreach (var item in splitStrs)
+            {
+                if (string.IsNullOrEmpty(item))
+                {
+                    continue;
+                }
+                try
+                {
+                    var elementId = long.Parse(item);
+                    var element = dgnModel.FindElementById(new ElementId(ref elementId));
+                    //if (element != null)
+                    //{
+                    //    agenda.Insert(element, true);//将元素插入容器
+                    //}
+                    SelectionSetManager.AddElement(element, dgnModel);//将元素容器添加到选择集
+                }
+                catch (Exception)
+                {
+
+                }
+            }
+
+            //SelectionSetManager.BuildAgenda(ref agenda);//从当前选择集中获得元素
+        }
+    }
+}