public async void Export() { string json = null; _serviceProvider.ExecuteScopedWork(provider => { IDataContract contract = provider.GetRequiredService <IDataContract>(); CodeProject project = contract.CodeProjects.FirstOrDefault(m => m.Id == Id); if (project == null) { Helper.Notify("项目信息不存在", NotificationType.Error); return; } json = project.ToJsonString(); }); SaveFileDialog dialog = new SaveFileDialog() { Title = $"保存项目“{GetName()}”的JSON文件", Filter = "JSON文件|*.json", FileName = $"{GetName()}.json", }; var result = dialog.ShowDialog(); if (result != DialogResult.OK) { return; } await File.WriteAllTextAsync(dialog.FileName, json); MainViewModel main = IoC.Get <MainViewModel>(); Helper.Notify($"项目“{Name}”配置文件导出成功", NotificationType.Success); main.StatusBar.Message = $"项目“{Name}”配置文件导出成功"; }