สอบถามปํญหา INSERT IDENT_CURRENT ในรูปแบบ Parameter ต้องกำหนดอย่างไร

INSERT INTO MyTable
                         (Code, Name)
VALUES        ('CODE' + REPLICATE('0', 8 - LEN(IDENT_CURRENT('MyTable'))) + CONVERT(nvarchar(50), IDENT_CURRENT('MyTable')), 'Thaicreate')

                    string strConnectionString = "Data Source=PROGRAMMER03;Initial Catalog=DBTest;Integrated Security=SSPI;";
                    SqlConnection cn = new SqlConnection(strConnectionString);
                    cn.Open();

                    string strServiceType = comboServiceType.SelectedValue.ToString();
                    string strServiceArea = comboServiceArea.SelectedValue.ToString();
                    string strStatus = comboStatus.SelectedValue.ToString();

                    string query = "INSERT INTO tblServiceReq(ServiceReqID,ServiceType,ServiceArea,Status)VALUES(@ServiceReqID@strServiceType,@strServiceArea,@strStatus)";

                    SqlCommand InsertCommand = new SqlCommand(query, cn);
                    InsertCommand.Connection = cn;

                    //InsertCommand.Parameters.AddWithValue(@"strServiceReqID", strServiceReqID);
                    InsertCommand.Parameters.AddWithValue(@"strServiceType", strServiceType);
                    InsertCommand.Parameters.AddWithValue(@"strServiceArea", strServiceArea);
                    InsertCommand.Parameters.AddWithValue(@"strStatus", strStatus);
                    InsertCommand.ExecuteNonQuery();

                    MessageBox.Show("New tblServiceRequests Data has been added successfully");
                    cn.Close();