stored procedure parameter expected error !!!

[bansari]

Hi..i tried to make insert stored procedure.
-------------------------------------------------------
ALTER PROCEDURE [dbo].[insert_empdata]

(
@empno int,
@empname varchar(100),
@emppassword varchar(100),
@empdob varchar(100)
)

AS

BEGIN
insert into Emp_3Tier values(@empno,@ empname,@emppas sword,@empdob)

END
-----------------------------------------------------

when i click my button on my webpage i found such error message:

Procedure 'insert_empdata ' expects parameter '@empno', which was not supplied.

My aspx code is as below :
---------------------------------------------------------

using System;
using System.Collections;
using System.Configuration;
using System.Data;
//using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
//using System.Xml.Linq;
using System.Data.SqlClient;


public partial class EmpDetails : System.Web.UI.Page
{

   
    SqlConnection con;
    SqlCommand cmd = new SqlCommand();

    SqlParameter sp1, sp2, sp3, sp4;
    

    protected void Page_Load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack)
        { 
        
        }
    }
    protected void btnInsert_Click(object sender, EventArgs e)
    {
      

        con = new SqlConnection("Data Source=10.0.32.33;Initial Catalog=test;Persist Security Info=True;User ID=sa;Password=abcdef");

        int emp_no= Convert.ToInt16(txtEmpNo.Text);
        string emp_name=txtEmpName.Text;
        string emp_pass =txtpassword.Text;
        string emp_dob=ddlDay.Text + "-" + ddlMonth.Text + "-" + txtYear.Text;

        sp1 = new SqlParameter("@empno", emp_no);
        sp2 = new SqlParameter("empname", emp_name);
        sp3 = new SqlParameter("@emppassword", emp_pass);
        sp4 = new SqlParameter("@empdob", emp_dob);

      
        cmd = new SqlCommand("insert_empdata", con);
        cmd.CommandType = CommandType.StoredProcedure;
        
        try
        {
            con.Open();
            cmd.ExecuteNonQuery();
        }
        catch (Exception ex)
        {
            Response.Write("error occured " + ex.Message);
        }
        finally
        {
            con.Close();
        }

        

    }
}

---------------------------------------------------------

plz help.thanks in advance.

[Subin Ninan]

Error is because you have not assigned parameters with command object.

It should be something like this:

cmd = new SqlCommand("insert_empdata", con);


SqlParameter empno = cmd.Parameters.Add("@empno", dbtype.int);


empno.Value = 0062;


cmd.CommandType = CommandType.StoredProcedure;


cmd.ExecuteNonQuery();

[mzmishra]

You have defined the parameters but you are not adding that to you sqlcommand object.

[bansari]

Thank you So much!! :)