Revit通过API创建共享参数

Revit共享参数是通过创建一个.txt类型的文件来保存相关信息，一旦与项目保存完毕之后，共享参数也就变成了项目参数（项目参数无法通过API创建），项目参数是保存在Revit项目里面的，所以此时这个.txt文件是可以删除的。
 1 using Autodesk.Revit.DB;
 2 using System;
 3 using System.IO;
 4 using System.Reflection;
 5 
 6 namespace HelloRevit
 7 {
 8     public class RevitApiUtils
 9     {
10         /// <summary>
11         /// 创建共享参数
12         /// </summary>
13         /// <param name="doc">Document对象</param>
14         /// <param name="groupName">共享参数组名</param>
15         /// <param name="definitionName">共享参数名</param>
16         /// <param name="builtInCategory">需要参数绑定的类型</param>
17         /// <param name="builtInParameterGroup">参数所属的属性类型</param>
18         /// <param name="parameterType">参数数据类型</param>
19         /// <param name="isInstanceParameter">是否实例参数</param>
20         public static void AddSharedParameters(Document doc, string groupName, string definitionName, BuiltInCategory builtInCategory, BuiltInParameterGroup builtInParameterGroup, ParameterType parameterType, bool isInstanceParameter)
21         {
22             var assemblyPath = Assembly.GetExecutingAssembly().Location;
23             var index = assemblyPath.IndexOf("\", StringComparison.Ordinal);
24             var rootPath = assemblyPath.Substring(0, index);
25             var sharedParameterPath = Path.Combine(rootPath, "RevitSharedParameters.txt");
26             if (File.Exists(sharedParameterPath))
27             {
28                 File.Delete(sharedParameterPath);
29             }
30             var categorySet = new CategorySet();
31             var category = doc.Settings.Categories.get_Item(builtInCategory);
32             categorySet.Insert(category);
33             if (!File.Exists(sharedParameterPath))
34             {
35                 try
36                 {
37                     File.Create(sharedParameterPath);
38                 }
39                 catch (Exception)
40                 {
41                     ThrowNewException("异常！");
42                 }
43             }
44             //设置共享参数文件
45             doc.Application.SharedParametersFilename = sharedParameterPath;
46             //打开共享参数文件
47             var definitionFile = doc.Application.OpenSharedParameterFile();
48             if (definitionFile == null)
49             {
50                 ThrowNewException("无法打开共享参数文件");
51                 return;
52             }
53             //获取共享参数组
54             var definitionGroups = definitionFile.Groups;
55             //获取参数组
56             var group = definitionGroups.get_Item(groupName) ?? definitionGroups.Create(groupName);
57             if (group == null)
58             {
59                 ThrowNewException("创建共享参数组失败！");
60                 return;
61             }
62 
63             //获取参数定义
64             var definition = group.Definitions.get_Item(definitionName);
65             if (definition == null)
66             {
67                 var externalDefinitionCreationOptions = new ExternalDefinitionCreationOptions(definitionName, parameterType);
68                 definition = group.Definitions.Create(externalDefinitionCreationOptions);
69             }
70 
71             ElementBinding binding;
72             if (isInstanceParameter)
73             {
74                 binding = doc.Application.Create.NewInstanceBinding(categorySet);
75             }
76             else
77             {
78                 binding = doc.Application.Create.NewTypeBinding(categorySet);
79             }
80 
81             bool isSuccess = doc.ParameterBindings.Insert(definition, binding, builtInParameterGroup);
82 
83             if (!isSuccess)
84             {
85                 ThrowNewException("共享参数绑定失败！");
86             }
87 
88             //删除共享参数txt文件，从某种意义上讲，绑定之后的共享参数就变成了项目参数只针对当前项目存在
89             File.Delete(sharedParameterPath);
90         }
91 
92         public static void ThrowNewException(string msg)
93         {
94             throw new Exception(msg);
95         }
96 
97     }
98 }