My dataset is null how can I solve it? Where ct is stored procedure save it from me

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.NET4.5

// this is my stored precedure

private string LastPlanDate(string WPMID, string SchoolAcaID, string SchoolMasterID)
    {
        try
        {
            cT.WPMID = Convert.ToInt32(WPMID);
            cT.Schoolacaid= _objSession.schoolAcaID;
            cT.Schoolmasterid = _objSession.smid;
            DataSet ds = cT.GetWeeklyPlanlastplandays();
           
            return ds.Tables[0].Rows[0]["Date"].ToString();

        }
        catch (Exception ex)
        {
            Log.Message(ex);
            throw ex;
        }
    }

What I have tried:

public DataSet GetWeeklyPlanlastplandays()
    {
        DataSet ds = new DataSet();
        try
        {
            cmd = new SqlCommand("Sms_WeeklyPlanLastPlandays", dAL.con);
            cmd.CommandType = CommandType.StoredProcedure;
            cmd.Parameters.AddWithValue("@WPMID", WPMID);
            cmd.Parameters.AddWithValue("@Schoolmasterid", Schoolmasterid);
            cmd.Parameters.AddWithValue("@Schoolacaid", Schoolacaid);
            SqlDataAdapter sqlDA = new SqlDataAdapter(cmd);
            sqlDA.Fill(ds);
        }
        catch (Exception ex)
        {
            Log.Message(ex.ToString());
        }
        return ds;

    }

Posted 21-Feb-22 1:06am

Member 15542635

Updated 21-Feb-22 1:51am

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CHill60 21-Feb-22 7:18am

What is actually happening / not happening

1 solution

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OriginalGriff · Answer 1 · 2022-02-21T01:51:00

That's not a stored procedure: that is C# code and stroed procedures are written in SQL, because that is where they are executed.
This is a stored procedure:

SQL

ALTER PROCEDURE [dbo].[spCountEpisodes] 
AS
BEGIN
	SET NOCOUNT ON;
    SELECT a.Name, b.EpCount 
    FROM Serials a 
    JOIN 
      (SELECT SerialId, Count(SerialNo) AS EpCount 
       FROM Episode GROUP BY SerialId) AS b 
    ON a.Id = b.SerialId
END

Your second example executes a stored procedure and uses it to fill a DataSet - but we have no idea what the SP does, how it does it, what data you pass to it in the parameters, or what your database contains.

So start with the debugger and look at the parameter values. then use SSMS to look inside your Db at the SP and your database table content to find out what it should be returning.

Sorry, but we can't help you with that!