Why does not return 1 - [Answered] RSS

• • Reply
  mariolopes

  Member

  423 Points

  970 Posts

  Why does not return 1 -

  Dec 14, 2019 02:31 PM|mariolopes|LINK

  Hi

  Please look at this piece of code:

  SqlDataSource3.SelectParameters.Clear();
          SqlDataSource3.SelectCommand = "select  IFNULL(max(id) as maior,1) from correspondencia";
          SqlDataSource3.DataBind();
          DataView dvsqllist = (DataView)SqlDataSource1.Select(DataSourceSelectArguments.Empty);
          System.Data.DataView dv = (DataView)SqlDataSource1.Select(DataSourceSelectArguments.Empty);
          DataTable tablelist = dvsqllist.Table;
          Response.Write(tablelist.Rows[0]["maior"].ToString());

  Why I got error (not record at postion 0)

  Thank you

  Mario Lopes
  https://programamos.pt
• • Reply
  mariolopes

  Member

  423 Points

  970 Posts

  Re: Why does not return 1 -

  Dec 14, 2019 02:42 PM|mariolopes|LINK

  Sorry, The code is wrong

  There is the correct code

    string maior="";
          SqlDataSource3.SelectParameters.Clear();
          SqlDataSource3.SelectCommand = "select  IFNULL(max(id),1) as maior from correspondencia";
          SqlDataSource3.DataBind();
         
          DataView dvsqllist = (DataView)SqlDataSource3.Select(DataSourceSelectArguments.Empty);
          DataTable tablelist = dvsqllist.Table;
          SqlDataSource3.DataBind();
          foreach (DataRow row in tablelist.Rows)
          {
              maior = row["maior"].ToString();
          }

  Mario Lopes
  https://programamos.pt