Revit API 操作共享参数和项目参数

1.获取共享参数

private string GetSharInfo(Autodesk.Revit.ApplicationServices.Application revitApp)
{
    StringBuilder str = new StringBuilder();
    DefinitionFile definitionFile = revitApp.OpenSharedParameterFile();
    DefinitionGroups groups = definitionFile.Groups;
    foreach (DefinitionGroup group in groups)
    {
        foreach (Definition definition in group.Definitions)
        {
            string name = definition.Name;
            ParameterType type = definition.ParameterType;
            str.AppendLine(string.Format("{0}---{1}", name, type.ToString()));
        }
    }
    return str.ToString();
}

2.创建共享参数

private void CreateSharInfo(Autodesk.Revit.ApplicationServices.Application revitApp, Autodesk.Revit.DB.Document revitDoc)
{
    try
    {
        string sharedParametersFilename = @"C:shared-parameters.txt";
        string groupName = "MyGroup";
        string definitionName = "MyDefinition";
        ParameterType parameterType = ParameterType.Text;
        CategorySet categorySet = new CategorySet();
        Category wallCategory = revitDoc.Settings.Categories.get_Item(BuiltInCategory.OST_Walls);
        categorySet.Insert(wallCategory);
        bool instanceParameter = true;
        BuiltInParameterGroup parameterGroup = BuiltInParameterGroup.PG_DATA;
        if (!System.IO.File.Exists(sharedParametersFilename))
        {
            try
            {
                System.IO.StreamWriter sw = System.IO.File.CreateText(sharedParametersFilename);
                sw.Close();
            }
            catch (Exception)
            {
                throw new Exception(string.Format("Can't create shared parameter file:{0}", sharedParametersFilename));
            }
        }
        revitApp.SharedParametersFilename = sharedParametersFilename;

        DefinitionFile definitionFile = revitApp.OpenSharedParameterFile();
        if (definitionFile == null)
        {
            throw new Exception("Can not open shared parameter file");
        }

        DefinitionGroups groups = definitionFile.Groups;
        DefinitionGroup group = groups.get_Item(groupName);
        if (group == null)
        {
            group = groups.Create(groupName);
        }
        Definition definition = group.Definitions.get_Item(definitionName);
        if (definition == null)
        {
            definition = group.Definitions.Create(new ExternalDefinitionCreationOptions(definitionName, parameterType));
        }
        ElementBinding binding = null;
        if (instanceParameter)
        {
            binding = revitApp.Create.NewInstanceBinding(categorySet);
        }
        else
        {
            binding = revitApp.Create.NewTypeBinding(categorySet);
        }
        bool insertSuccess = revitDoc.ParameterBindings.Insert(definition, binding, parameterGroup);
        if (!insertSuccess)
        {
            throw new Exception("Failed to bind definition to category");
        }
    }
    catch (Exception ex)
    {
        throw ex;
    }
}

3.获取项目参数(API无法创建项目参数的)

private string GetProjectParam(Autodesk.Revit.DB.Document revitDoc)
{
    StringBuilder strBuild = new StringBuilder();
    BindingMap map = revitDoc.ParameterBindings;
    DefinitionBindingMapIterator dep = map.ForwardIterator();
    while (dep.MoveNext())
    {
        Definition definition = dep.Key;
        string definitionName = definition.Name;
        ParameterType parameterType = definition.ParameterType;
        InstanceBinding instanceBinding = dep.Current as InstanceBinding;
        if (instanceBinding != null)
        {
            CategorySet categorySet = instanceBinding.Categories;
            strBuild.AppendLine(string.Format("Name:{0} Type:{1} CategorySet:{2}", definitionName, parameterType, categorySet.GetType().ToString()));
        }
        else
        {
            strBuild.AppendLine(string.Format("Name:{0} Type:{1}", definitionName, parameterType));
        }
    }
    return strBuild.ToString();
}

4.创建项目参数

Revit API无法创建项目参数，目前没有找到创建方法。