Question

我在尝试在DB上创建记录时遇到了一些问题。我正在使用Entity Framework和SQL Server。

我做了一些研究，但找不到任何帮助我的东西。我看到很多人提到.edmx文件上的主键或映射。我根据我找到的答案更改了我的.edmx文件，尝试删除一些密钥，只留下一个以及更改存储：键入表而不是视图。主键显示在.edmx上，但我没有设置它，因为我认为它是自动生成的。

部分.edmx

<!--Errors Found During Generation:
warning 6002: The table/view 'xxx.dbo.FilteredNew_timesheetlineitem' does not have a primary key defined. The key has been inferred and the definition was created as a read-only table/view.-->
        <EntityType Name="FilteredNew_timesheetlineitem">
          <Key>
            <PropertyRef Name="createdbydsc" />
            <PropertyRef Name="modifiedbydsc" />
            <PropertyRef Name="new_accounttimesheetlineitemiddsc" />
            <PropertyRef Name="new_approvedbyuseriddsc" />
            <PropertyRef Name="new_billratetimesheetlineitemiddsc" />
            <PropertyRef Name="new_billtoiddsc" />
            <PropertyRef Name="new_candidatetimesheetlineitemiddsc" />
            <PropertyRef Name="new_contracttypetimesheetlineitemiddsc" />
            <PropertyRef Name="new_paytypetimesheetlineitemiddsc" />
            <PropertyRef Name="new_slatimesheetlineitemiddsc" />
            <PropertyRef Name="new_stream3timesheetlineitemiddsc" />
            <PropertyRef Name="new_timesheetlineitemid" />
            <PropertyRef Name="new_timesheettimesheetlineitemiddsc" />
            <PropertyRef Name="ownerid" />
            <PropertyRef Name="owneriddsc" />
            <PropertyRef Name="statecode" />
            <PropertyRef Name="transactioncurrencyiddsc" />
          </Key>
          <Property Name="createdby" Type="uniqueidentifier" />
          <Property Name="createdbydsc" Type="int" Nullable="false" />
          <Property Name="createdbyname" Type="nvarchar" MaxLength="160" />
          <Property Name="createdbyyominame" Type="nvarchar" MaxLength="160" />
          <Property Name="createdon" Type="datetime" />
          <Property Name="createdonutc" Type="datetime" />
          <Property Name="createdonbehalfby" Type="uniqueidentifier" />
          <Property Name="createdonbehalfbyname" Type="nvarchar" MaxLength="160" />
          <Property Name="createdonbehalfbyyominame" Type="nvarchar" MaxLength="160" />
          <Property Name="exchangerate" Type="decimal" Precision="23" Scale="10" />
          <Property Name="importsequencenumber" Type="int" />
          <Property Name="modifiedby" Type="uniqueidentifier" />
          <Property Name="modifiedbydsc" Type="int" Nullable="false" />
          <Property Name="modifiedbyname" Type="nvarchar" MaxLength="160" />
          <Property Name="modifiedbyyominame" Type="nvarchar" MaxLength="160" />
          <Property Name="modifiedon" Type="datetime" />
          <Property Name="modifiedonutc" Type="datetime" />
          <Property Name="modifiedonbehalfby" Type="uniqueidentifier" />
          <Property Name="modifiedonbehalfbyname" Type="nvarchar" MaxLength="160" />
          <Property Name="modifiedonbehalfbyyominame" Type="nvarchar" MaxLength="160" />
          <Property Name="new_accounttimesheetlineitemid" Type="uniqueidentifier" />
          <Property Name="new_accounttimesheetlineitemiddsc" Type="int" Nullable="false" />
          <Property Name="new_accounttimesheetlineitemidname" Type="nvarchar" MaxLength="160" />
          <Property Name="new_accounttimesheetlineitemidyominame" Type="nvarchar" MaxLength="160" />
          <Property Name="new_approved" Type="bit" />
          <Property Name="new_approvedbyuserid" Type="uniqueidentifier" />
          <Property Name="new_approvedbyuseriddsc" Type="int" Nullable="false" />
          <Property Name="new_approvedbyuseridname" Type="nvarchar" MaxLength="160" />
          <Property Name="new_approvedbyuseridyominame" Type="nvarchar" MaxLength="160" />
          <Property Name="new_approveddatetime" Type="datetime" />
          <Property Name="new_approveddatetimeutc" Type="datetime" />
          <Property Name="new_approvedname" Type="nvarchar" MaxLength="4000" />
          <Property Name="new_billrate" Type="money" />
          <Property Name="new_billratetimesheetlineitemid" Type="uniqueidentifier" />
          <Property Name="new_billratetimesheetlineitemiddsc" Type="int" Nullable="false" />
          <Property Name="new_billratetimesheetlineitemidname" Type="nvarchar" MaxLength="100" />
          <Property Name="new_billrate_base" Type="money" />
          <Property Name="new_billtoid" Type="uniqueidentifier" />
          <Property Name="new_billtoiddsc" Type="int" Nullable="false" />
          <Property Name="new_billtoidname" Type="nvarchar" MaxLength="160" />
          <Property Name="new_billtoidyominame" Type="nvarchar" MaxLength="160" />
          <Property Name="new_candidatetimesheetlineitemid" Type="uniqueidentifier" />
          <Property Name="new_candidatetimesheetlineitemiddsc" Type="int" Nullable="false" />
          <Property Name="new_candidatetimesheetlineitemidname" Type="nvarchar" MaxLength="100" />
          <Property Name="new_contracttypetimesheetlineitemid" Type="uniqueidentifier" />
          <Property Name="new_contracttypetimesheetlineitemiddsc" Type="int" Nullable="false" />
          <Property Name="new_contracttypetimesheetlineitemidname" Type="nvarchar" MaxLength="100" />
          <Property Name="new_enddatetime" Type="datetime" />
          <Property Name="new_enddatetimeutc" Type="datetime" />
          <Property Name="new_firstname" Type="nvarchar" MaxLength="100" />
          <Property Name="new_hours" Type="decimal" Precision="23" Scale="10" />
          <Property Name="new_jobseekerid" Type="nvarchar" MaxLength="100" />
          <Property Name="new_lastname" Type="nvarchar" MaxLength="100" />
          <Property Name="new_lunchtime" Type="int" />
          <Property Name="new_lunchtimename" Type="nvarchar" MaxLength="4000" />
          <Property Name="new_name" Type="nvarchar" MaxLength="100" />
          <Property Name="new_payrollreference" Type="nvarchar" MaxLength="100" />
          <Property Name="new_paytypetimesheetlineitemid" Type="uniqueidentifier" />
          <Property Name="new_paytypetimesheetlineitemiddsc" Type="int" Nullable="false" />
          <Property Name="new_paytypetimesheetlineitemidname" Type="nvarchar" MaxLength="100" />
          <Property Name="new_slatimesheetlineitemid" Type="uniqueidentifier" />
          <Property Name="new_slatimesheetlineitemiddsc" Type="int" Nullable="false" />
          <Property Name="new_slatimesheetlineitemidname" Type="nvarchar" MaxLength="100" />
          <Property Name="new_startdatetime" Type="datetime" />
          <Property Name="new_startdatetimeutc" Type="datetime" />...

以下保存ViewModel数据的方法

public void SaveTimesheetLine(TimesheetViewModel timesheetLineVm)
    {
        string payrollId = Convert.ToString(Session["payroll"]);
        using (MSCRMEntities t = new MSCRMEntities())
        {
            var line = new FilteredNew_timesheetlineitem
            {
                new_billtoid = timesheetLineVm.TimesheetLineViewModels.BillToId,
                new_timesheettimesheetlineitemid = timesheetLineVm.TimesheetId,
                new_slatimesheetlineitemid = timesheetLineVm.TimesheetLineViewModels.SlaId,
                new_billratetimesheetlineitemid = timesheetLineVm.TimesheetLineViewModels.BillRateId,
                new_stream3timesheetlineitemid = timesheetLineVm.TimesheetLineViewModels.Stream3Id,
                new_contracttypetimesheetlineitemid = timesheetLineVm.TimesheetLineViewModels.ContractTypeId,
                new_firstname = timesheetLineVm.TimesheetLineViewModels.EmployeeFirstName,
                new_lastname = timesheetLineVm.TimesheetLineViewModels.EmployeeLastName,
                new_accounttimesheetlineitemid = timesheetLineVm.TimesheetLineViewModels.EmployerId,
                new_payrollreference = payrollId,
                new_timesheetdate = timesheetLineVm.TimesheetDate,
                new_candidatetimesheetlineitemid = timesheetLineVm.TimesheetLineViewModels.CandidateId,
                // taken from user input
                new_startdatetime = timesheetLineVm.TimesheetLineViewModels.StartDate,
                new_enddatetime = timesheetLineVm.TimesheetLineViewModels.EndDate,
                new_paytypetimesheetlineitemidname = Convert.ToString(timesheetLineVm.TimesheetLineViewModels.PayType),
                new_lunchtime = 2,
                new_submittedhours = timesheetLineVm.TimesheetLineViewModels.SubmittedHours
            };

            t.FilteredNew_timesheetlineitem.Add(line);
            // t.Entry(line).State = (EntityState) Microsoft.Xrm.Sdk.EntityState.Created;

            t.SaveChanges();
        }
    }

我得到的错误是：

无法更新EntitySet，因为它有一个defineQuery而且没有 InsertFnction元素存在于modificationFunctionMapping中元素支持当前操作。

有谁知道为什么会出现这样的错误？

提前致谢， DEM

Answer 1

显然，＆＃39; xxx.dbo.FilteredNew_timesheetlineitem＆＃39;没有主键。

Answer 2

Dynamics CRM DB无法直接更新，您需要使用CRM Web服务而不是SQL查询或EntityFramework。

无法更新实体集，因为它具有定义查询，并且元素中不存在支持当前操作的元素

2 个答案: