public async void FillDepts() { try { depts = await deptController.GetAsync(); AddEmp.Enabled = (depts.Count > 0); listBoxDept.DataSource = depts; listBoxDept.ValueMember = "Id"; listBoxDept.DisplayMember = "Name"; listBoxDept.ContextMenuStrip = contextMenuDept; Data.deptList = depts; } catch (HttpRequestException ex) { MessageBox.Show("Не удалось подключиться к серверу" + ex.Message, "Ошибка!", MessageBoxButtons.OK); } catch (Exception ex) { MessageBox.Show(ex.Message, "Ошибка!", MessageBoxButtons.OK); } }