问题：{"Update 无法找到 TableMapping['ds'] 或 DataTable“ds”。"} System.Exception {System.InvalidOperationExce

Question

问题：{"Update 无法找到 TableMapping['ds'] 或 DataTable“ds”。"} System.Exception {System.InvalidOperationException}error code:  
 int count = adapter.Update(ds, "ds");      //----------cs.file-------------
1.       protected void btnOK_Click(object sender, EventArgs e)
        {
            if (Page.IsValid)
            {
                User_Info entity = new User_Info();
                entity.GetModel("UI_ID =" +Session["ManageInfo"].ToString());                if (entity.UI_PassWord == this.txtoldPwd.Text.Trim())
                {
                    entity.UI_PassWord = this.txtNewPwd.Text.Trim();
                   // Response.Write(entity.UI_PassWord);
                    ResultInfo result = entity.update();
                    
//------------------
2.           public ResultInfo update()
        {
            try
            {
                bool isBool = DbHelperSQL.Update(ds, sqlInit);
                if (isBool == true)
                {
                    return new ResultInfo(0);
                }
                else
                {
                    return new ResultInfo(-1);                }
            }
            catch (Exception ex)
            {
                return new ResultInfo(-1, ex.Message);
            }
        }
//-----------------------------------
3.    public static bool Update(DataSet ds, string sql)
       {
           using (SqlConnection connection = new SqlConnection(connectionString))
           {
               SqlDataAdapter adapter = new SqlDataAdapter(sql, connection);
           上面的SQL可以得到 select * from user_Info where  1!=1 
               SqlCommandBuilder builder = new SqlCommandBuilder(adapter);
               try
               {
                 
           
                   int count = adapter.Update(ds, "ds");//??????????????????如查Count =1  is true ,而现在 COUNT 为0
                   if (count > 0)
                   {
                       return true;
                   }
                   else
                   {
                       return false;
                   }
               }
               catch (System.Data.SqlClient.SqlException ex)
               {
                   throw new Exception(ex.Message);
               }
           }
       }

Answer 1

解决了》
int count = adapter.Update(ds.table[0]);