Question

public void ExecStoredProc(string strprocName, SqlConnection sqlConnect, List<string> Paramvalues)
{
    if (ConnectToDB() == true)
    {
        SqlCommand cmd = new SqlCommand(strprocName, sqlConnect);
        cmd.CommandType = CommandType.StoredProcedure;
        cmd.CommandText = strprocName;

        SqlParameter parameters = new SqlParameter();
        parameters.Value = Paramvalues;
        cmd.ExecuteNonQuery();
    }
}

This code is giving an error when I am passing the name of the procedure login which has two parameters,user and pwd. Though I am using the list to add parameters but it not not passed to the SP. Showing error in the line cmd.ExecuteNonQuery();

Answer 1

While you are declaring a new SqlParameter object you are not actually associating that object with cmd. Adding the below should help:

cmd.Parameters.Add(parameters)