小编JM.*_*JM.的帖子

如何从已删除的行中检索信息.我已从数据集中的表中删除了一些行,然后使用方法GetChanges(DataRowState.Deleted)来获取已删除的行.我尝试在服务器端的原始表中删除了行,但它完成了这些错误.

System.Data.DeletedRowInaccessibleException:无法通过该行访问已删除的行信息.

什么是正确的方法？这是我的代码,任何建议？谢谢大家

    Dataset ds = //get dataset from client side
    //get changes
    DataTable delRows = ds.Tables[0].GetChanges(DataRowState.Deleted);

    //try delete rows in table in DB
                    if (delRows != null)
                    {
                        string connStr = WebConfigurationManager.ConnectionStrings["Employees"].ConnectionString;
                        conn = new SqlConnection(connStr);

                        conn.Open();

                        for (int i = 0; i < delRows.Rows.Count; i++)
                        {
                            string cmdText = string.Format("DELETE Tab1 WHERE Surname=@Surname");

                            cmd = new SqlCommand() { Connection = conn, CommandText = cmdText };

//here is problem, I need get surnames from rows which was deleted
                            var …