private void btnAddUser_Click(object sender, EventArgs e) { var addUserForm = new AddUserForm(); var result = addUserForm.ShowDialog(); if (result == DialogResult.OK) { try { using (var store = new Store()) { this.BindUserDataSource(store); ProgramContext.InitializeKnowUsers(store); } } catch (Exception error) { MessageBox.Show("加载用户数据失败\r\n" + error.Message, "错误"); } } }