问如何创建可在传输项目标准时共享的共享参数

EN

if (Convert.ToString(value) != "")
            {
                Type type = value.GetType();
                string originalFile = uiApp.Application.SharedParametersFilename;
                string tempFile = Path.Combine(Path.GetTempPath(), Path.GetRandomFileName()) + ".txt";
                using (File.Create(tempFile)) { }
                uiApp.Application.SharedParametersFilename = tempFile;
                try
                {
                    if (ele.LookupParameter(param) == null)
                    {
                        ExternalDefinitionCreationOptions edco = null;
                        if (type.Name.Equals("Double"))
                            edco = new ExternalDefinitionCreationOptions(param, ParameterType.Number);
                        else
                            edco = new ExternalDefinitionCreationOptions(param, ParameterType.Text);
                        edco.Visible = true;
                        var definition = uiApp.Application.OpenSharedParameterFile().Groups.Create("Custom Parameters").Definitions.Create(edco);
                        var newCategorySet = uiApp.Application.Create.NewCategorySet();
                        newCategorySet.Insert(doc.Settings.Categories.get_Item(BuiltInCategory.OST_Walls));
                        Autodesk.Revit.DB.Binding binding = uiApp.Application.Create.NewTypeBinding(newCategorySet);
                        doc.ParameterBindings.Insert(definition, binding, BuiltInParameterGroup.PG_IDENTITY_DATA);
                        if (!string.IsNullOrEmpty((string)value))
                            ele.LookupParameter(param).Set((string)value);
                    }
                    else
                    {
                        if (!string.IsNullOrEmpty((string)value))
                            ele.LookupParameter(param).Set((string)
                    }
                }
                catch (Exception ex)
                {

                }
                finally
                {
                    uiApp.Application.SharedParametersFilename = originalFile;
                }
            }