System.Data.OleDb.OleDbDataAdapter 内部错误: 无效的参数访问器: 1 BADBINDINFO

这个错误有谁见过？
google和baidu都查不到 msdn里也没有
代码如下：
#region 插入后台用户操作
        //----------------------------------------------------------------
        // 函数 GetInsertCommand:
        //   初始化命令适配器 Insert command 的参数
        //----------------------------------------------------------------
        private OleDbCommand GetInsertCommand()
        {
            OleDbCommand tmpInsertCommand = null;            sqlString = "INSERT INTO SysUsers(LoginId,Password,Name,Email) SELECT @LoginId,@Password,@Name,@Email";            if (tmpInsertCommand == null)
            {
                tmpInsertCommand = new OleDbCommand(sqlString, new OleDbConnection(HitCrownConfiguration.ConnectionString));                OleDbParameterCollection oleParams = tmpInsertCommand.Parameters;                oleParams.Add(new OleDbParameter("@PKId", OleDbType.Integer));
                oleParams.Add(new OleDbParameter("@LoginId", OleDbType.VarChar, 20));
                oleParams.Add(new OleDbParameter("@Password", OleDbType.Binary));
                oleParams.Add(new OleDbParameter("@Name", OleDbType.VarChar, 40));
                oleParams.Add(new OleDbParameter("@Email", OleDbType.VarChar, 50));
                //
                // 定义参数与数据表的映射
                //
                oleParams["@PKId"].SourceColumn = SysUserData.PKID_FIELD;
                oleParams["@PKId"].Direction = ParameterDirection.Output;                oleParams["@LoginId"].SourceColumn = SysUserData.LOGINID_FIELD;
                oleParams["@Password"].SourceColumn = SysUserData.PASSWORD_FIELD;
                oleParams["@Name"].SourceColumn = SysUserData.NAME_FIELD;
                oleParams["@Email"].SourceColumn = SysUserData.EMAIL_FIELD;
            }            return tmpInsertCommand;
        }
        /// <summary>
        ///     向数据库中插入一条新用户记录
        ///     <param name="sysUser">包含详细用户信息的SysUsersData</param>
        ///     <retvalue>插入成功或失败的返回值</retvalue>
        /// </summary>
        public bool InsertSysUser(SysUserData sysUser)
        {
            if (dsCommand == null)
            {
                throw new System.ObjectDisposedException(GetType().FullName);
            }            dsCommand.InsertCommand = GetInsertCommand();            dsCommand.Update(sysUser, SysUserData.SYSUSERS_TABLE);
            //
            // 检查是否更新失败
            //
            if (sysUser.HasErrors)
            {
                sysUser.Tables[SysUserData.SYSUSERS_TABLE].GetErrors()[0].ClearErrors();
                return false;
            }
            else
            {
                sysUser.AcceptChanges();
                return true;
            }
        }
        #endregion
说明：sysUser参数是由业务层传递过来的一个dataset
执行dsCommand.Update时出现上述错误