Question

I’m currently using a store procedure with a variable to get data from a database but I was the return the result in XML. I can get all data from a table using this store procedure and it returns in XML:

public string GetAllPatients()
        {
            string conn = @"Data Source=SNICKERS\SQLEXPRESS;Initial Catalog=VerveDatabase;Integrated Security=True";
            DataSet oDS = new DataSet();
            SqlDataAdapter oCMD = new SqlDataAdapter("getAll", conn);
            oCMD.Fill(oDS, "AllPatients");
            return oDS.GetXml();
        }

However when I try to get an idividual patient record and return it in XML I’m not sure how, I;m currently doing this:

public void getUser(int ParticipantID)
        {

            SqlConnection oConn = new SqlConnection();
            oConn.ConnectionString = @"Data Source=SNICKERS\SQLEXPRESS;Initial Catalog=VerveDatabase;Integrated Security=True";
            oConn.Open();
            DataSet oDS = new DataSet();
            SqlCommand cmd = new SqlCommand();
            cmd.Connection = oConn;
            cmd.CommandType = CommandType.StoredProcedure;
            cmd.CommandText = "getUser";
            cmd.Parameters.Add(new SqlParameter("@ParticipantID",SqlDbType.Int));
            cmd.Parameters["@ParticipantID"].Value = 1; 
            SqlDataReader dr = cmd.ExecuteReader(); 
        }

Answer 1

To get XML from SQL Server, your stored procedure needs to read something like

 SELECT whatever
 FROM thetable
 WHERE ID = @participantID
 FOR XML AUTO

which will generate an XML result which you can then read with

 var xmlResult = dr[0];

EDIT on clarifications

Replace the datareader in the last line of your second procedure with code similar to your first

        SqlDataAdapter oCMD = new SqlDataAdapter(cmd); 
        oCMD.Fill(oDS, "User"); 
        return oDS.GetXml();