/// <summary>
        /// 删除
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void tsBtnDel_Click(object sender, EventArgs e)
        {
            if (Alert.confirm(LibCommon.Const.DELETE_USER_INFO, LibCommon.Const.NOTES, MessageBoxButtons.YesNo, MessageBoxIcon.Question))
            {
                //获取登录用户记录条数
                //int n = LoginFormBLL.GetRecordCountFromTable();
                int n = this.fpUserLoginInformation.ActiveSheet.Rows.Count - _fpTitleRowCount;
                //从数据末尾删除数据
                for (int i = n - 1; i >= 0; i--)
                {
                    if (this.fpUserLoginInformation.ActiveSheet.Cells[2 + i, 0].CellType is FarPoint.Win.Spread.CellType.CheckBoxCellType)
                    {
                        if (this.fpUserLoginInformation.ActiveSheet.Cells[2 + i, 0].Value != null)
                        {
                            if ((bool)this.fpUserLoginInformation.ActiveSheet.Cells[2 + i, 0].Value)
                            {
                                this.fpUserLoginInformation.ActiveSheet.Rows.Remove(2 + i, 1);
                                //删除一行数据后,在数据末尾加一行
                                //this.fpUserLoginInformation.ActiveSheet.Rows.Add(n - 1 + 2, 1);
                                //this.fpUserLoginInformation.ActiveSheet.Rows[n - 1 + 2].BackColor = Color.Red;//显示颜色直观显示追加行位置
                            }
                        }
                    }
                }
                //遍历 记录用户信息的数组,删除数据库中的数据
                foreach (string str in _userSel)
                {
                    var userLogin = UserLogin.FindOneByLoginName(str);
                    userLogin.Delete();
                }
                fpUserLoginInformation.Refresh();
                this.fpUserLoginInformation.ActiveSheet.SetActiveCell(UserLogin.Count() + 1, 0);

                //清除所有选择数据
                _userSel.Clear();

                //设置删除按钮是否启用
                this.tsBtnDel.Enabled = false;
                //设置修改按钮是否启用
                this.tsBtnModify.Enabled = false;

                //记录当前farpoint的记录条数
                _fpRowsCount = this.fpUserLoginInformation.ActiveSheet.Rows.Count;
            }
        }