Stored procedure or function expects parameter which was not supplied

Question

I am trying to insert data into a SQL Server database by calling a stored procedure, but I am getting the error

*Procedure or function 'Insertion' expects parameter '@Emp_no', which was not supplied*

My stored procedure is called Insertion. I have checked it thoroughly and no parameters is missing also I have checked it by using a label. The label shows the value but I don't know why I am getting the error.

My code is

    try
    {
        SqlCommand cmd = new SqlCommand();
        cmd.Parameters.Clear();
        cmd.CommandType = CommandType.StoredProcedure;
        cmd.CommandText = "Insertion";
        cmd.Connection = con;

        if (rdb_Male.Checked)
        {
            int @Emp_no = Convert.ToInt32(txtbx_Empno.Text);
            string @Emp_name = txtbx_Emp_Name.Text;
            double @phone = Convert.ToDouble(txtbx_Phone.Text);
            string @Email = txtbx_Email.Text;
            string @Password = txtbx_Pwd.Text;
            string @Gender = rdb_Male.Text;
            DateTime @Dob = Convert.ToDateTime(dob);
            string @Address = txtbx_Address.Text;
            string @Designation = txtbx_Designation.Text;
            string @Qualification = txtbx_Qual.Text;
            double @Experience = Convert.ToDouble(txtbx_Exp.Text);
            double @Salary = Convert.ToDouble(txtbx_Sal.Text);
            DateTime @Doj = Convert.ToDateTime(doj);
        }
        else if (rdb_Female.Checked)
        {
            int @Emp_no = Convert.ToInt32(txtbx_Empno.Text);
            string @Emp_name = txtbx_Emp_Name.Text;
            double @phone = Convert.ToDouble(txtbx_Phone.Text);
            string @Email = txtbx_Email.Text;
            string @Password = txtbx_Pwd.Text;
            string @Gender = rdb_Female.Text;
            DateTime @Dob = Convert.ToDateTime(dob);
            string @Address = txtbx_Address.Text;
            string @Designation = txtbx_Designation.Text;
            string @Qualification = txtbx_Qual.Text;
            double @Experience = Convert.ToDouble(txtbx_Exp.Text);
            double @Salary = Convert.ToDouble(txtbx_Sal.Text);
            DateTime @Doj = Convert.ToDateTime(doj);
        }

        if (con.State==ConnectionState.Closed)
            con.Open();

        LABEL.Text = txtbx_Empno.Text;

        cmd.ExecuteNonQuery();

        lbl_Errormsg.Visible = true;
        lbl_Errormsg.Text = "Record Inserted Successfully";

        con.Close();
    }

and the stored procedure is

ALTER PROCEDURE dbo.Insertion
(
@Emp_no int,
@Emp_name varchar(30),
@phone numeric(10,0),
@Email varchar(30),
@Password varchar(10),
@Gender varchar(6),
@Dob date,
@Address varchar(100),
@Designation varchar(20),
@Qualification varchar(20),
@Experience numeric(4,2),
@Salary numeric(10,2),
@Doj date
)
AS
 Begin
   Insert into Register (Emp_no, Emp_name, phone, Email, Password, Gender, Dob, Address, Designation, Qualification, Experience, Salary, Doj)
   Values(@Emp_no, @Emp_name, @phone, @Email, @Password, @Gender, @Dob, @Address, @Designation, @Qualification, @Experience, @Salary, @Doj)
 End

Please help me. Thanks in advance.

Answer 1

Just a headsup, it might save someone a lot of time soul searching. If you have followed the recommendation here, like using AddWithValue in order to pass a paramter on, and you have everything verified and yet you are still getting the error message "Not supplied", check whether you have set the CommandType property of the command object to CommandType.StoredProcedure.

Not setting this property incurs the same message, believe me! Hope it helps someone.