Conversion failed when converting the varchar value

Question

 Conversion failed when converting the varchar value 'Hair dressing' to data type int. while 'Hair dressing is @course_name

public FeesstructureType SetFeesstructureTypeType(FeesstructureType tFeesstructureTypeid)

{

ReturnType returns = new ReturnType();

BuildConnstring();

using (SqlConnection conn = new SqlConnection(connstring))

{

using (SqlCommand Command = conn.CreateCommand())

{

conn.Open();

if (tFeesstructureTypeid.fees_id == 0)

{

Command.CommandText = "INSERT INTO fees_Structures VALUES (@term_id,@course_name,@fees_per_term,@exam_body,@student_id,@amount_paid,@balance,@date_of_payment)SET @fees_id = (SELECT SCOPE_IDENTITY())";

}

else

{

Command.CommandText = "UPDATE fees_Structures set term_id=@term_id,course_name=@course_name,fees_per_term=@fees_per_term,exam_body=@exam_body,student_id=@student_id,amount_paid=@amount_paid,balance=@balance,date_of_payment=@date_of_payment WHERE fees_id=@fees_id";

}

Command.Parameters.Add("@fees_id", SqlDbType.Int).Value = tFeesstructureTypeid.fees_id;

Command.Parameters.Add("@term_id", SqlDbType.Int).Value = tFeesstructureTypeid.term_id;

Command.Parameters.Add("@student_id", SqlDbType.Int).Value = tFeesstructureTypeid.student_id;

Command.Parameters.Add("@course_name", SqlDbType.VarChar, 50, ParameterDirection.Input.ToString()).Value = tFeesstructureTypeid.course_name;

Command.Parameters.Add("@exam_body", SqlDbType.VarChar, 50, ParameterDirection.Input.ToString()).Value = tFeesstructureTypeid.exam_body;

Command.Parameters.Add("@fees_per_term", SqlDbType.Money, 18, ParameterDirection.Input.ToString()).Value = tFeesstructureTypeid.fees_per_term;

Command.Parameters.Add("@amount_paid", SqlDbType.Money, 18, ParameterDirection.Input.ToString()).Value = tFeesstructureTypeid.amount_paid;

Command.Parameters.Add("@balance", SqlDbType.Money, 18, ParameterDirection.Input.ToString()).Value = tFeesstructureTypeid.balance;

Command.Parameters.Add("@date_of_payment", SqlDbType.DateTime ).Value = tFeesstructureTypeid.date_of_payment;

returns.return_code = Command.ExecuteNonQuery();

if

(returns.return_code == 1)

//returns.return_identity_code = Command.Parameters ("bill_unit_id");

returns.return_message = "Fees structure Succesfull";

return tFeesstructureTypeid;

}

}

}