添加项目文件。

KGdev.BI3D.Revit.Addin.MainWindow.External.Browser/AssemblyLoaderUtil.cs

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+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Reflection;
+using System.Threading;
+
+namespace KGdev.BI3D.Revit.Addin.MainWindow.External.Browser
+{
+    public class AssemblyLoaderUtil
+    {
+        public AssemblyLoaderUtil(string assemblyDir)
+        {
+            AssemblyDirectory = assemblyDir;
+        }
+
+        public string AssemblyDirectory { get; set; }
+
+        public void HookAssemblyResolve()
+        {
+            AppDomain.CurrentDomain.AssemblyResolve += CurrentDomain_AssemblyResolve;
+        }
+
+        /// <summary>
+        ///     加载目录下的所有程序集
+        /// </summary>
+        /// <param name="commandFolderPath"></param>
+        /// <returns></returns>
+        public List<Assembly> LoadAllRibbonAssemblies(string commandFolderPath)
+        {
+            var list = new List<Assembly>();
+            foreach (var assemblyFile in Directory.GetFiles(commandFolderPath, "*.dll"))
+            {
+                try
+                {
+                    list.Add(Assembly.LoadFrom(assemblyFile));
+                }
+                catch
+                {
+                    // ignored
+                }
+            }
+
+            return list;
+        }
+
+        ///// <summary>
+        /////     调用此方法解决UI程序集丢失
+        ///// </summary>
+        ///// <param name="action"></param>
+        //public static void ResolveAssembly(Action action)
+        //{
+        //    string addInPath = typeof(AssemblyLoaderUtil).Assembly.Location;
+        //    string dirAssembly = Path.GetDirectoryName(addInPath);
+        //    AssemblyLoaderUtil loaderUtil = new AssemblyLoaderUtil(dirAssembly);
+        //    loaderUtil.HookAssemblyResolve();
+        //    try
+        //    {
+        //        action();
+        //    }
+        //    catch (Exception ex)
+        //    {
+        //        MessageBox.Show(ex.InnerException?.ToString());
+        //    }
+        //    finally
+        //    {
+        //        loaderUtil.UnhookAssemblyResolve();
+        //    }
+        //}
+
+        public void UnhookAssemblyResolve()
+        {
+            AppDomain.CurrentDomain.AssemblyResolve -= CurrentDomain_AssemblyResolve;
+        }
+
+        private Assembly LoadAddin(string filePath)
+        {
+            Assembly result;
+            try
+            {
+                Monitor.Enter(this);
+                result = Assembly.LoadFile(filePath);
+            }
+            finally
+            {
+                Monitor.Exit(this);
+            }
+
+            return result;
+        }
+
+        private string SearchAssemblyFile(string assemblyName)
+        {
+            string[] array = { ".dll", ".exe" };
+            var str = assemblyName.Substring(0, assemblyName.IndexOf(','));
+            foreach (var str2 in array)
+            {
+                var text = AssemblyDirectory + "\\" + str + str2;
+                if (File.Exists(text))
+                {
+                    return text;
+                }
+            }
+
+            return string.Empty;
+        }
+
+        private Assembly CurrentDomain_AssemblyResolve(object sender, ResolveEventArgs args)
+        {
+            Assembly result;
+            _ = new AssemblyName(args.Name);
+            var text = SearchAssemblyFile(args.Name);
+            if (File.Exists(text))
+            {
+                result = LoadAddin(text);
+            }
+            else
+            {
+                if (string.IsNullOrEmpty(text))
+                {
+                    var array = args.Name.Split(',');
+                    var text2 = array[0];
+                    if (array.Length > 1)
+                    {
+                        var text3 = array[2];
+                        if (
+                            text2.EndsWith(".resources", StringComparison.CurrentCultureIgnoreCase)
+                            && !text3.EndsWith("neutral", StringComparison.CurrentCultureIgnoreCase)
+                        )
+                        {
+                            text2 = text2.Substring(0, text2.Length - ".resources".Length);
+                        }
+
+                        text = SearchAssemblyFile(text2);
+                        if (File.Exists(text))
+                        {
+                            return LoadAddin(text);
+                        }
+                        //text = this.SearchAssemblyFile(text2);
+                    }
+                }
+
+                result = LoadAddin(text);
+            }
+
+            return result;
+        }
+    }
+}