sqlparameterCollection的Count=0的索引无效

        [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
        [global::System.ComponentModel.Design.HelpKeywordAttribute("vs.data.TableAdapter")]
        [global::System.ComponentModel.DataObjectMethodAttribute(global::System.ComponentModel.DataObjectMethodType.Fill, false)]
        public virtual int FillByDateTime(db_cantingDataSetAttM.tb_attendanceDataTable dataTable, string ReferTime, string StartTime)
        {
            this.Adapter.SelectCommand = this.CommandCollection[0];
               if ((ReferTime == null))
                {
                    throw new global::System.ArgumentNullException("ReferTime");
                }
                else
                {
                    this.Adapter.SelectCommand.Parameters[0].Value = ((string)(ReferTime));
                }
                if ((StartTime == null))
                {
                    throw new global::System.ArgumentNullException("StartTime");
                }
                else
                {
                    this.Adapter.SelectCommand.Parameters[1].Value = ((string)(StartTime));
                }
                if ((this.ClearBeforeFill == true))
                {
                    dataTable.Clear();
                }
                int returnValue = this.Adapter.Fill(dataTable);
                return returnValue;
            
        }
    }这是我在Designer.cs中添加的方法当在.cs*中调用时 this.tb_attendanceTableAdapter.FillByDateTime(this.db_cantingDataSetAttM.tb_attendance, startDate, endDate);会报sqlparameterCollection的Count=0的索引无效请大家帮忙看下是哪里出了问题