private bool ImportFromFile(string file) { ProjectModel model = JsonConvert.DeserializeObject <ProjectModel>(IOHelper.ReadFile(file, false)); if (model != null) { //创建新的Id model.ID = projects.GetCreateID(); model.ProjectName += model.ID; if (group != null) { model.GroupID = group.ID; } else { model.GroupID = 0; } app.Add(model); return(projects.Add(model)); } return(false); }