c# - 为什么我得到这个错误序列不包含元素
问题描述
我在视图中使用以下代码并尝试了很多解决方案，但仍然收到此错误 Sequence Contains no elements ，这是视图代码：
@model AljawdahNewSite.Models.Orders_Tables
@{
ViewBag.Title = "Result Details";
//Layout = "~/Views/Shared/_LayoutPatients.cshtml";
var hema = new List<int>() { 1 };
var bio = new List<int>() { 2 };
var ser = new List<int>() { 3 };
var hor = new List<int>() { 4 };
var histo = new List<int>() { 5 };
var culture = new List<int>() { 8 };
var para = new List<int>() { 6 };
var covid = new List<int>() { 9 };
var labPara = Model.LabParaResult.FirstOrDefault();
var labCult = Model.LabCultureResults.FirstOrDefault();
var labMicro = Model.LabMicroResults.FirstOrDefault();
var labHisto = Model.LabHistoResult.FirstOrDefault();
var LabResults = Model.LabResults;
var labhema = LabResults.FirstOrDefault(x => x.deptid == 1);
var labBio = LabResults.FirstOrDefault(x => x.deptid == 2);
var labSer = LabResults.FirstOrDefault(x => x.deptid == 3);
var labHor = LabResults.FirstOrDefault(x => x.deptid == 4);
var labcovid = LabResults.FirstOrDefault(x => x.deptid == 9);
var LABCLINICVIEW = Model.labClinicsViewResult;
var LABCASHVIEW = Model.labCashView;
var labPara1 = Model.LabParasitologyView.FirstOrDefault();
var labCult1 = Model.LabCulturesView.FirstOrDefault();
var labMicro1 = Model.LabMicroView.FirstOrDefault();
var labHisto1 = Model.LabHistopathologyView.FirstOrDefault();
var labhema1 = LABCLINICVIEW.FirstOrDefault(x => x.DEPTID == 1);
var labBio1 = LABCLINICVIEW.FirstOrDefault(x => x.DEPTID == 2);
var labSer1 = LABCLINICVIEW.FirstOrDefault(x => x.DEPTID == 3);
var labHor1 = LABCLINICVIEW.FirstOrDefault(x => x.DEPTID == 4);
var labcovid1 = LABCLINICVIEW.FirstOrDefault(x => x.DEPTID == 9);
}
<div id="coviddiv">
@if (labcovid1 != null && labcovid1.Report_Date.HasValue)
{
<table class="table table-bordered">
<tr>
<td style="text-align:center">
<input type="submit" value="Covid-19 Result " @*onclick="PrintElemser('#serdiv')"*@ class="btn btn-primary" />
<a href="/RPT/WebForm1.aspx/?order_number=@Model.labClinicsViewResult.First().order_number&deptid=9&testid=@Model.labClinicsViewResult.First().Test_Id&Culture=@Model.labClinicsViewResult.First().Culture" class="btn btn-danger">Download Covid Result</a>
</td>
</tr>
</table>
<div>
<dl class="horizontal" style="border:solid;padding:10px">
<dt style="width: 20%;display: inline-block;color:blue;">@Html.DisplayNameFor(model => model.labClinicsViewResult.FirstOrDefault().Patient_Name)</dt>
<dd style="width: 25%;display: inline-block;margin: 0px;margin-left:-50px">@Html.DisplayFor(model => model.labClinicsViewResult.FirstOrDefault().Patient_Name)</dd>
<dt style="width: 22%;display: inline-block;color:blue;margin-left:-20px">@Html.DisplayNameFor(model => model.labClinicsViewResult.FirstOrDefault().Customer_Name)</dt>
<dd style="width: 25%;display: inline-block;margin: 0px;margin-left:0px">@Html.DisplayFor(model => model.labClinicsViewResult.FirstOrDefault().Customer_Name)</dd>
<dt style="width: 20%;display: inline-block;color:blue;">@Html.DisplayNameFor(model => model.labClinicsViewResult.FirstOrDefault().Patient_No)</dt>
<dd style="width: 25%;display: inline-block;margin: 0px;margin-left:-50px">@Html.DisplayFor(model => model.labClinicsViewResult.FirstOrDefault().Patient_No)</dd>
<dt style="width: 22%;display: inline-block;margin-left:0px;color:blue;margin-left:-20px">@Html.DisplayNameFor(model => model.labClinicsViewResult.FirstOrDefault().Collection_Date)</dt>
<dd style="width: 25%;display: inline-block;margin: 0px;margin-left:0px">@Html.DisplayFor(model => model.labClinicsViewResult.FirstOrDefault().Collection_Date)</dd>
<dt style="width: 20%;display: inline-block;color:blue;">@Html.DisplayNameFor(model => model.labClinicsViewResult.FirstOrDefault().SEX)</dt>
<dd style="width: 20%;display: inline-block;margin: 0px;margin-left:-50px">@Html.DisplayFor(model => model.labClinicsViewResult.FirstOrDefault().SEX)</dd>
<dt style="width: 22%;display: inline-block;margin-left:60px;color:blue;">@Html.DisplayNameFor(model => model.labClinicsViewResult.FirstOrDefault().Receiving_Date)</dt>
<dd style="width: 25%;display: inline-block;margin: 0px;margin-left:0px">@Html.DisplayFor(model => model.labClinicsViewResult.FirstOrDefault().Receiving_Date)</dd>
<dt style="width: 20%;display: inline-block;color:blue;">@Html.DisplayNameFor(model => model.labClinicsViewResult.FirstOrDefault().AGE)</dt>
<dd style="width: 20%;display: inline-block;margin: 0px;margin-left:-50px">@Html.DisplayFor(model => model.labClinicsViewResult.FirstOrDefault().AGE)</dd>
<dt style="width: 22%;display: inline-block;margin-left:60px;color:blue;">@Html.DisplayNameFor(model => model.labClinicsViewResult.FirstOrDefault().Report_Date)</dt>
<dd style="width: 25%;display: inline-block;margin: 0px;margin-left:0px">@Html.DisplayFor(model => model.labClinicsViewResult.FirstOrDefault().Report_Date)</dd>
<dt style="width: 20%;display: inline-block;color:blue;">@Html.DisplayNameFor(model => model.labClinicsViewResult.FirstOrDefault().order_number)</dt>
<dd style="width: 25%;display: inline-block;margin: 0px;margin-left:-50px">@Html.DisplayFor(model => model.labClinicsViewResult.FirstOrDefault().order_number)</dd>
</dl>
</div>
<div class="tab-pane container active" id="home">
<h5 class="text-uppercase p-2 text-center">Molecular Unit</h5>
<table class="table table-bordered" cellpadding="5" cellspacing="5" border="1">
<thead>
<tr>
@*<th>@Html.DisplayNameFor(m => m.labCashView.FirstOrDefault().Patient_No)</th>
<th>@Html.DisplayNameFor(m => m.labCashView.FirstOrDefault().Patient_Name)</th>*@
<th>@Html.DisplayNameFor(m => m.labClinicsViewResult.FirstOrDefault().Test_Name)</th>
<th>@Html.DisplayNameFor(m => m.labClinicsViewResult.FirstOrDefault().Result)</th>
<th>@Html.DisplayNameFor(m => m.labClinicsViewResult.FirstOrDefault().Low_Range)</th>
<th>@Html.DisplayNameFor(m => m.labClinicsViewResult.FirstOrDefault().High_Range)</th>
<th>@Html.DisplayNameFor(m => m.labClinicsViewResult.FirstOrDefault().Text_Range)</th>
<th>@Html.DisplayNameFor(m => m.labClinicsViewResult.FirstOrDefault().Report_Date)</th>
</tr>
</thead>
@foreach (var employee in Model.labClinicsViewResult.Where(x => covid.Contains(x.DEPTID.GetValueOrDefault())))
{
<tr>
@*<td>@employee.Patient_No</td>
<td>@employee.Patient_Name</td>*@
<td>@employee.Test_Name</td>
<td>@employee.Result</td>
<td>@employee.Low_Range</td>
<td>@employee.High_Range</td>
<td>@employee.Text_Range</td>
<td>@employee.Report_Date</td>
</tr>
}
</table>
</div>
}
</div>
<div id="paradiv">
@if (labPara1 != null && labPara1.Report_Date.HasValue)
{
<table class="table table-bordered">
<tr>
<td style="text-align:center">
<h3> <input type="submit" style="text-align:center" value="Parasitology Result " onclick="PrintElempar('#paradiv')" class="btn btn-primary" /></h3>
<a href="/RPT/WebForm1.aspx/?order_number=@Model.LabParaResult.First().ORDER_ID&deptid=@Model.LabParaResult.First().deptid&testid=@Model.LabParaResult.First().TESTID&Culture=2" class="btn btn-danger">Print Parasitology Result</a>
</td>
</tr>
</table>
<div>
<dl class="horizontal" style="border:solid;padding:10px">
<dt style="width: 20%;display: inline-block;color:blue;">@Html.DisplayNameFor(model => model.LabParasitologyView.FirstOrDefault().Patient_Name)</dt>
<dd style="width: 25%;display: inline-block;margin: 0px;margin-left:-50px">@Html.DisplayFor(model => model.LabParasitologyView.FirstOrDefault().Patient_Name)</dd>
<dt style="width: 22%;display: inline-block;color:blue;">@Html.DisplayNameFor(model => model.LabParasitologyView.FirstOrDefault().Customer_Name)</dt>
<dd style="width: 25%;display: inline-block;margin: 0px;margin-left:0px">@Html.DisplayFor(model => model.LabParasitologyView.FirstOrDefault().Customer_Name)</dd>
<dt style="width: 20%;display: inline-block;color:blue;">@Html.DisplayNameFor(model => model.LabParasitologyView.FirstOrDefault().Patient_No)</dt>
<dd style="width: 25%;display: inline-block;margin: 0px;margin-left:-50px">@Html.DisplayFor(model => model.LabParasitologyView.FirstOrDefault().Patient_No)</dd>
<dt style="width: 22%;display: inline-block;margin-left:0px;color:blue;">@Html.DisplayNameFor(model => model.LabParasitologyView.FirstOrDefault().Collection_Date)</dt>
<dd style="width: 25%;display: inline-block;margin: 0px;margin-left:0px">@Html.DisplayFor(model => model.LabParasitologyView.FirstOrDefault().Collection_Date)</dd>
<dt style="width: 20%;display: inline-block;color:blue;">@Html.DisplayNameFor(model => model.LabParasitologyView.FirstOrDefault().SEX)</dt>
<dd style="width: 20%;display: inline-block;margin: 0px;margin-left:-50px">@Html.DisplayFor(model => model.LabParasitologyView.FirstOrDefault().SEX)</dd>
<dt style="width: 22%;display: inline-block;margin-left:60px;color:blue;">@Html.DisplayNameFor(model => model.LabParasitologyView.FirstOrDefault().Receiving_Date)</dt>
<dd style="width: 25%;display: inline-block;margin: 0px;margin-left:0px">@Html.DisplayFor(model => model.LabParasitologyView.FirstOrDefault().Receiving_Date)</dd>
<dt style="width: 20%;display: inline-block;color:blue;">@Html.DisplayNameFor(model => model.LabParasitologyView.FirstOrDefault().AGE)</dt>
<dd style="width: 20%;display: inline-block;margin: 0px;margin-left:-50px">@Html.DisplayFor(model => model.LabParasitologyView.FirstOrDefault().AGE)</dd>
<dt style="width: 22%;display: inline-block;margin-left:60px;color:blue;">@Html.DisplayNameFor(model => model.LabParasitologyView.FirstOrDefault().Report_Date)</dt>
<dd style="width: 25%;display: inline-block;margin: 0px;margin-left:0px">@Html.DisplayFor(model => model.LabParasitologyView.FirstOrDefault().Report_Date)</dd>
<dt style="width: 20%;display: inline-block;color:blue;">@Html.DisplayNameFor(model => model.LabParasitologyView.FirstOrDefault().order_number)</dt>
<dd style="width: 25%;display: inline-block;margin: 0px;margin-left:-50px">@Html.DisplayFor(model => model.LabParasitologyView.FirstOrDefault().order_number)</dd>
@*<dt style="width: 20%;display: inline-block;color:blue;">@Html.DisplayNameFor(model => model.LabParasitologyView.FirstOrDefault().Test_Name)</dt>
<dd style="width: 25%;display: inline-block;margin: 0px;margin-left:25px">@Html.DisplayFor(model => model.LabParasitologyView.FirstOrDefault().Test_Name)</dd>*@
</dl>
</div>
<div class="tab-pane container active" id="home">
@*<h5 class="text-uppercase p-2 text-center">Parasitology Department</h5>*@
<div>
@*<dl class="horizontal" style="border:solid">
<dd style="width: 40%;display: inline-block;margin: 0px;margin-left:0px">@Html.DisplayFor(model => model.LabParasitologyView.FirstOrDefault().Test_Name)</dd>
</dl>*@
<table class="table table-bordered" cellpadding="5" cellspacing="5" border="1">
<thead>
<tr>
<th>@Html.DisplayNameFor(m => m.labtests.FirstOrDefault().TestName)</th>
<th>@Html.DisplayNameFor(m => m.LabParasitologyView.FirstOrDefault().SERIAL)</th>
<th>@Html.DisplayNameFor(m => m.LabParasitologyView.FirstOrDefault().TEXT)</th>
<th>@Html.DisplayNameFor(m => m.LabParasitologyView.FirstOrDefault().RESULT)</th>
<th>@Html.DisplayNameFor(m => m.LabParasitologyView.FirstOrDefault().UNIT)</th>
<th>@Html.DisplayNameFor(m => m.LabParasitologyView.FirstOrDefault().Reference_Range)</th>
<th>@Html.DisplayNameFor(m => m.LabParasitologyView.FirstOrDefault().Report_Date)</th>
</tr>
</thead>
@foreach (var employee in Model.LabParaResult.Where(x => para.Contains(x.deptid.GetValueOrDefault())))
{
<tr>
<td>@employee.LabTests.TestName</td>
<td>@employee.SERIAL</td>
<td>@employee.TEXT</td>
<td>@employee.VALUE</td>
<td>@employee.unit</td>
<td>@employee.reference_range</td>
<td>@employee.APPROVED_DATE</td>
</tr>
}
</table>
</div>
</div>
}
</div>
这是控制器代码的一部分：
public ActionResult MasterDetails(int id)
{
var tables = new Orders_Tables
{
testsRanges = db.TestsRanges.ToList(),
LabResults = db.LAB_RESULTS.Where(o => o.ORDER_ID == id)
.Include(p => p.LabTests)
.Include(t => t.Patients).ToList(),
LabParaResult = db.LAB_PARA_RESULTS.Where(o => o.ORDER_ID == id).Include(t => t.Patients).Include(t => t.LabTests).Include(c => c.Customers).ToList(),
LabCultureResults = db.LAB_CULTURE_RESULT.Where(o => o.ORDER_ID == id).Include(t => t.Patients).Include(t => t.LabTests).Include(c => c.Customers).ToList(),
LabMicroResults = db.LAB_MICRO_NEGATIVE_RESULT.Where(o => o.ORDER_ID == id).ToList(),
labCashView = db.LAB_RESULT_CASH_VIEW.Where(o => o.order_number == id).ToList(),
labClinicsViewResult = db.LAB_RESULTS_CLINIC_VIEW.Where(o => o.order_number == id).ToList(),
LabParasitologyView = db.LAB_PARASITOLOGY_VIEW.Where(o => o.order_number == id).ToList(),
};
return View(tables);
}
尝试运行结果时显示错误
var labPara1 = Model.LabParasitologyView.FirstOrDefault();
但错误出现在这一行
var labcovid1 = LABCLINICVIEW.FirstOrDefault(x => x.DEPTID == 9);
我需要你的帮助：
我将如何处理控制器代码
如果labClinicsViewResult 为空且不返回值，则跳过并转到下一个？
这是课程：
public class Orders_Tables
{
// internal IQueryable<object> result { get; set; }
public Lab_Orders LabOrders { get; set; }
public Lab_orders_Cash LabOrdersCash { get; set; }
public Lab_Sample_status LabOrderStatus { get; set; }
public IEnumerable<LAB_RESULTS> LabResults { get; set; }
public IEnumerable<TestsRanges> testsRanges { get; set; }
public IEnumerable<TestsUnits> testUnits { get; set; }
public IEnumerable<LAB_CULTURE_RESULT> LabCultureResults { get; set; }
public IEnumerable<LAB_MICRO_NEGATIVE_RESULT> LabMicroResults { get; set; }
public IEnumerable<LabTests> labtests { get; set; }
public IEnumerable<LAB_RESULTS_CLINIC_VIEW> labClinicsViewResult { get; set; }
public IEnumerable<LAB_RESULT_CASH_VIEW> labCashView { get; set; }
public IEnumerable<LAB_PARASITOLOGY_VIEW> LabParasitologyView { get; set; }
public IEnumerable<LAB_CULTURES_VIEW> LabCulturesView { get; set; }
public IEnumerable<LAB_MICRO_VIEW> LabMicroView { get; set; }
public IEnumerable<LAB_HISTOPATHOLOGY_VIEW> LabHistopathologyView { get; set; }
public IEnumerable<LAB_HISTO_RESULT> LabHistoResult { get; set; }
public IEnumerable<LAB_PARA_RESULTS> LabParaResult { get; set; }
public Lab_Hematology_Samples LabSamples { get; set; }
public Patients patients { get; set; }
public IEnumerable<Customers> customers { get; set; }
}
这是类定义：
public partial class LAB_RESULTS_CLINIC_VIEW
{
public int order_number { get; set; }
public int Test_Id { get; set; }
public string Test_Name { get; set; }
public Nullable<int> Result_Duration { get; set; }
public Nullable<int> Culture { get; set; }
public string Normal { get; set; }
public Nullable<System.DateTime> Report_Date { get; set; }
public string Result { get; set; }
public string Notes { get; set; }
public string Low_Range { get; set; }
public string High_Range { get; set; }
public string Panic { get; set; }
public string Text_Range { get; set; }
public string machine_name { get; set; }
public Nullable<int> Customer_No { get; set; }
public string Customer_Name { get; set; }
public Nullable<int> Patient_No { get; set; }
public string Patient_Name { get; set; }
public string Clinic_File_No { get; set; }
public string Category { get; set; }
public Nullable<int> AGE { get; set; }
public string SEX { get; set; }
public string Test_Note { get; set; }
public string UNIT { get; set; }
public Nullable<int> DEPTID { get; set; }
public Nullable<System.DateTime> Collection_Date { get; set; }
public Nullable<System.DateTime> Receiving_Date { get; set; }
public string Group_Name { get; set; }
public Nullable<int> SERIAL { get; set; }
public int GROUPID { get; set; }
public Nullable<int> packageid { get; set; }
public string EXAMINED_BY { get; set; }
public string APPROVED_BY { get; set; }
public string UPDATED_BY { get; set; }
public Nullable<System.DateTime> UPDATED_DATE { get; set; }
public string Comments { get; set; }
public string department_name { get; set; }
}
这是数据库中的视图脚本：
CREATE VIEW [dbo].[LAB_RESULTS_CLINIC_VIEW] AS
SELECT DISTINCT [LAB_RESULTS].ORDER_ID as 'order number'
,labtests.TestId as 'Test Id'
,labtests.TestName as 'Test Name'
,labtests.test_duration as 'Result Duration'
,labtests.culture as 'Culture'
,NORMAL_RESULT as 'Normal'
,cast(LAB_RESULTS.APPROVED_DATE as datetime) as 'Report Date'
,CASE WHEN coalesce([RESULT_NUMBER],'') <> '' THEN RESULT_NUMBER WHEN coalesce(RESULT_REPORT, '') <> '' THEN RESULT_REPORT END AS Result
,[RESULT_NOTE] as 'Notes'
,TestsRanges.LowerLimit as 'Low Range'
,TestsRanges.UpperLimit as 'High Range'
,TestsRanges.panic_value as 'Panic'
,TestsRanges.text_range as 'Text Range'
,machines.machine_name
,LAB_RESULTS.CUSTID as 'Customer No'
,Customers.CustName as 'Customer Name'
,LAB_RESULTS.patient_no as 'Patient No'
,Patients.PATIENT_NAME as 'Patient Name'
,Patients.PCfileNo as 'Clinic File No'
,patientcat.CatName as 'Category'
,Patients.Age AS 'AGE'
,gender.gendername as 'SEX'
,labtests.TestNotes as 'Test Note'
,TestsUnits.UnitName as 'UNIT'
,LAB_RESULTS.deptid AS 'DEPTID'
,cast(Lab_Hematology_Samples.COLLECTION_DATE as datetime) as 'Collection Date'
,cast(Lab_Hematology_Samples.RECEIVING_DATE as datetime) as 'Receiving Date'
,Groups.groupdesc as 'Group Name'
,LAB_RESULTS.SERIAL
,LAB_RESULTS.GROUPID
,LAB_RESULTS.packageid
,LAB_RESULTS.EXAMINED_BY
,LAB_RESULTS.APPROVED_BY
,UPDATED_BY
,UPDATED_DATE
,Lab_Result_Comments.comments as 'Comments'
,Departments.Dept_name as 'department name'
,[LAB_RESULTS].branch_id as 'branchid'
FROM [dbo].[LAB_RESULTS]
inner join LabTests on LabTests.testid=LAB_RESULTS.TESTID
inner join TestsRanges on LAB_RESULTS.TESTID=TestsRanges.TestId
inner join Departments on LAB_RESULTS.deptid=Departments.Dept_id
inner join PatientCat on patientcat.CatId = TestsRanges.CatId
inner join Customers on Customers.CustId=LAB_RESULTS.CUSTID
inner join patients on Patients.Patient_No = LAB_RESULTS.patient_no
inner join machines on lab_results.machine_id = machines.machine_id
inner join gender on gender.genderid = Patients.Gender
inner join TestsUnits on TestsUnits.UnitId = LabTests.UnitId
inner join Lab_Orders on Lab_Orders.ORDER_ID = LAB_RESULTS.ORDER_ID
left join Lab_Result_Comments on LAB_RESULTS.ORDER_ID = Lab_Result_Comments.ORDER_ID
inner join Lab_Hematology_Samples on Lab_Hematology_Samples.SAMPLE_ID = LAB_RESULTS.SAMPLE_ID
inner join Groups on (Groups.groupid = LAB_RESULTS.GROUPID and Groups.Testid = LAB_RESULTS.TESTID )
where (Lab_Orders.catid = TestsRanges.CatId or PatientCat.CatId =5)
and LAB_RESULTS.EXAMINED_DATE is not null
and LAB_RESULTS.APPROVED_DATE is not null
and LAB_RESULTS.SAMPLE_STATUS=6
and (Patients.Gender = TestsRanges.PatientSex or TestsRanges.PatientSex = 1 )
AND TestsRanges.machine_id = LAB_RESULTS.machine_id
-- and LAB_RESULTS.update_count in (select max(update_count) from LAB_RESULTS where SAMPLE_STATUS = 6 and deptid = @deptid and ORDER_ID = @ORDER_ID)
AND LAB_RESULTS.DEPTID IN (1,2,3,4,9)
UNION ALL
SELECT DISTINCT [LAB_RESULTS].ORDER_ID as 'order number'
,labtests.TestId as 'Test Id'
,labtests.TestName as 'Test Name'
,labtests.test_duration as 'Result Duration'
,labtests.culture as 'Culture'
,NORMAL_RESULT as 'Normal'
,cast(APPROVED_DATE as datetime) as 'Report Date'
,CASE WHEN coalesce([RESULT_NUMBER],'') <> '' THEN RESULT_NUMBER WHEN coalesce(RESULT_REPORT, '') <> '' THEN RESULT_REPORT END AS Result
,[RESULT_NOTE] as 'Notes'
,TestsRanges.LowerLimit as 'Low Range'
,TestsRanges.UpperLimit as 'High Range'
,TestsRanges.panic_value as 'Panic'
,TestsRanges.text_range as 'Text Range'
,machines.machine_name
,LAB_RESULTS.CUSTID as 'Customer No'
,Customers.CustName as 'Customer Name'
,LAB_RESULTS.patient_no as 'Patient No'
,Patients.PATIENT_NAME as 'Patient Name'
,Patients.PCfileNo as 'Clinic File No'
,patientcat.CatName as 'Category'
,Patients.Age AS 'AGE'
,gender.gendername as 'SEX'
,labtests.TestNotes as 'Test Note'
,TestsUnits.UnitName as 'UNIT'
,LAB_RESULTS.deptid AS 'DEPTID'
,cast(Lab_Hematology_Samples.COLLECTION_DATE as datetime) as 'Collection Date'
,cast(Lab_Hematology_Samples.RECEIVING_DATE as datetime)as 'Receiving Date'
,NULL AS 'Group Name'
,LAB_RESULTS.SERIAL
,LAB_RESULTS.GROUPID
,LAB_RESULTS.packageid
,LAB_RESULTS.EXAMINED_BY
,LAB_RESULTS.APPROVED_BY
,UPDATED_BY
,UPDATED_DATE
,Lab_Result_Comments.comments as 'Comments'
,Departments.Dept_name as 'department name'
,[LAB_RESULTS].branch_id as 'branchid'
FROM [dbo].[LAB_RESULTS]
inner join LabTests on LabTests.testid=LAB_RESULTS.TESTID
inner join TestsRanges on TestsRanges.TestId = LAB_RESULTS.TESTID
inner join Departments on LAB_RESULTS.deptid=Departments.Dept_id
inner join PatientCat on patientcat.CatId = TestsRanges.CatId
inner join Customers on Customers.CustId=LAB_RESULTS.CUSTID
inner join machines on lab_results.machine_id = machines.machine_id
inner join patients on Patients.Patient_No = LAB_RESULTS.patient_no
inner join gender on gender.genderid = Patients.Gender
inner join TestsUnits on TestsUnits.UnitId = LabTests.UnitId
left join Lab_Result_Comments on LAB_RESULTS.ORDER_ID = Lab_Result_Comments.ORDER_ID
inner join Lab_Orders on Lab_Orders.ORDER_ID = LAB_RESULTS.ORDER_ID
inner join Lab_Hematology_Samples on Lab_Hematology_Samples.SAMPLE_ID = LAB_RESULTS.SAMPLE_ID
where (Lab_Orders.catid = TestsRanges.CatId or PatientCat.CatId =5)
and LAB_RESULTS.EXAMINED_DATE is not null
and LAB_RESULTS.APPROVED_DATE is not null
and LAB_RESULTS.SAMPLE_STATUS=6
and (Patients.Gender = TestsRanges.PatientSex or TestsRanges.PatientSex = 1 )
and LAB_RESULTS.GROUPID = 0
-- and LAB_RESULTS.update_count in (select max(update_count) from LAB_RESULTS where SAMPLE_STATUS = 6 and deptid = @deptid and ORDER_ID = @ORDER_ID)
-- and LAB_RESULTS.deptid = @deptid
AND TestsRanges.machine_id = LAB_RESULTS.machine_id
AND LAB_RESULTS.DEPTID IN (1,2,3,4,9)
解释有关该问题的更多详细信息：
医生登录网站并通过单击结果按钮打开结果，
如果部门 (1,2,3,4,5,9) 中的结果，控制器 masterdetails 将在下一页显示结果
但是如果部门（6,8）中的结果属于表（LAB_PARA_RESULTS 或 LAB_CULTURE_RESULT）
它没有打开并显示错误这是错误之前的图像：
解决方案
看起来不包含任何元素的序列是LABCLINICVIEW. 这是从您的模型变量分配的Orders_Tables.labClinicsViewResult。您正在使用数据库调用分配此变量db.LAB_RESULTS_CLINIC_VIEW.Where(o => o.order_number == id).ToList()，因此在我看来，此数据库调用返回一个空集。尝试调试并单步执行并停止该行return View(tables);，然后检查您的变量tables以查看该成员变量tables.labClinicsViewResult实际上是否包含任何内容。如果它是空的，那是你的问题。如果它不为空，那么您的问题可能出在调用中var labcovid1 = LABCLINICVIEW.FirstOrDefault(x => x.DEPTID == 9);，并且它可能没有DEPTID等于的值9。
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