无法在剃刀页面表单的选择列表中保存多个选择
Posted
技术标签:
【中文标题】无法在剃刀页面表单的选择列表中保存多个选择【英文标题】：Unable to save multiple selections in select lists in a razor page form 【发布时间】：2020-04-20 00:14:39 【问题描述】：在这里我可以绑定多选选择列表。当我尝试保存时，我没有收到错误消息，但它没有保存官员信息。
这是尝试加载页面时的错误
处理请求时发生未处理的异常。 SqlException：列名“OfficerID”无效。 Microsoft.Data.SqlClient.SqlCommand+c.b__164_0（任务 结果）
Stack Query Cookies Headers Routing SqlException: Invalid column name “军官证”。 Microsoft.Data.SqlClient.SqlCommand+c.b__164_0（任务 结果） System.Threading.Tasks.ContinuationResultTaskFromResultTask.InnerInvoke() System.Threading.Tasks.Task+c.<.cctor>b__274_0(object obj) System.Threading.ExecutionContext.RunInternal（ExecutionContext executionContext、ContextCallback 回调、对象状态） System.Threading.Tasks.Task.ExecuteWithThreadLocal（参考任务 currentTaskSlot，线程线程池线程） Microsoft.EntityFrameworkCore.Storage.RelationalCommand.ExecuteReaderAsync（RelationalCommandParameterObject 参数对象，CancellationToken 取消令牌） Microsoft.EntityFrameworkCore.Storage.RelationalCommand.ExecuteReaderAsync（RelationalCommandParameterObject 参数对象，CancellationToken 取消令牌） Microsoft.EntityFrameworkCore.Storage.RelationalCommand.ExecuteReaderAsync（RelationalCommandParameterObject 参数对象，CancellationToken 取消令牌） Microsoft.EntityFrameworkCore.Query.Internal.QueryingEnumerable+AsyncEnumerator.InitializeReaderAsync(DbContext _, bool result, CancellationToken cancelToken) Microsoft.EntityFrameworkCore.SqlServer.Storage.Internal.SqlServerExecutionStrategy.ExecuteAsync(TState state, Func> operation, Func>> verifySucceeded, CancellationToken 取消令牌） Microsoft.EntityFrameworkCore.Query.Internal.QueryingEnumerable+AsyncEnumerator.MoveNextAsync() Microsoft.EntityFrameworkCore.EntityFrameworkQueryableExtensions.ToListAsync（IQueryable 来源，CancellationToken 取消令牌） Microsoft.EntityFrameworkCore.EntityFrameworkQueryableExtensions.ToListAsync（IQueryable 来源，CancellationToken 取消令牌） SecurityCore.PaginatedList.CreateAsync（IQueryable 源，int PageIndex, int pageSize) 在 PaginatedList.cs + var items = await source.Skip(SecurityCore.Pages.SecurityLogs.IndexModel.OnGetAsync(string sortOrder，字符串 currentFilter，字符串 searchString，Nullable index.cshtml.cs 中的 pageIndex，字符串 entitySelect) + SecurityLog = 等待 PaginatedList.CreateAsync(排序 Microsoft.AspNetCore.Mvc.RazorPages.Infrastructure.ExecutorFactory+NonGenericTaskHandlerMethod.Execute（对象 接收器，对象 [] 参数） Microsoft.AspNetCore.Mvc.RazorPages.Infrastructure.PageActionInvoker.InvokeHandlerMethodAsync() Microsoft.AspNetCore.Mvc.RazorPages.Infrastructure.PageActionInvoker.InvokeNextPageFilterAsync() Microsoft.AspNetCore.Mvc.RazorPages.Infrastructure.PageActionInvoker.Rethrow（PageHandlerExecutedContext 语境） Microsoft.AspNetCore.Mvc.RazorPages.Infrastructure.PageActionInvoker.Next（参考 State next, ref Scope scope, ref object state, ref bool isCompleted) Microsoft.AspNetCore.Mvc.RazorPages.Infrastructure.PageActionInvoker.InvokeInnerFilterAsync() Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Awaited|24_0(ResourceInvoker 调用者，任务 lastTask，下一个状态，作用域范围，对象状态，布尔 完成了） Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow（ResourceExecutedContextSealed 语境） Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Next（参考状态 接下来，ref Scope 范围，ref 对象状态，ref bool isCompleted) Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Awaited|19_0(ResourceInvoker 调用者，任务 lastTask，下一个状态，作用域范围，对象状态，布尔 完成了） Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Logged|17_1(ResourceInvoker 调用者） Microsoft.AspNetCore.Routing.EndpointMiddleware.g__AwaitRequestTask|6_0（端点 端点、任务 requestTask、ILogger 记录器） Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext 语境） Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.Invoke(HttpContext 上下文）
这是我的代码...
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;
using Microsoft.AspNetCore.Mvc.Rendering;
using Microsoft.EntityFrameworkCore;
using SecurityCore.Models;
using System.ComponentModel.DataAnnotations;
namespace SecurityCore.Pages.SecurityLogs
public class IndexModel : PageModel
private readonly SecurityCore.Models.SecurityCoreContext _context;
public IndexModel(SecurityCore.Models.SecurityCoreContext context)
_context = context;
public string EventDateSort get; set;
public string EventStartSort get; set;
public string EventEndSort get; set;
public string ContactNameSort get; set;
public string EventTypeSort get; set;
public string ShiftRangeSort get; set;
public string EntitySort get; set;
public string LocationSort get; set;
public string NarrativeSort get; set;
public string OfficerNameSort get; set;
public string FullNameSort get; set;
public string SubjectDOBSort get; set;
public string RecordLockedSort get; set;
public string CurrentFilter get; set;
public string CurrentSort get; set;
public string IDSort get; set;
public Nullable<DateTime> dateEnd get; set;
public Nullable<DateTime> dateBegin get; set;
[TempData]
public string Message get; set;
public bool ShowMessage => !string.IsNullOrEmpty(Message);
public PaginatedList<SecurityLog> SecurityLog get; set;
public async Task OnGetAsync(string sortOrder, string currentFilter, string searchString, int? pageIndex, string entitySelect)
ViewData["EntityID"] = new SelectList(_context.Entity.Where(a => a.Active == "Y"), "ID", "Name");
CurrentSort = sortOrder;
IDSort = sortOrder == "ID" ? "ID_Desc" : "ID";
EventDateSort = sortOrder == "EventDate" ? "EventDate_Desc" : "EventDate";
ContactNameSort = sortOrder == "ContactName" ? "ContactName_Desc" : "ContactName";
EventTypeSort = sortOrder == "EventType" ? "EventType_Desc" : "EventType";
ShiftRangeSort = sortOrder == "ShiftRange" ? "ShiftRange_Desc" : "ShiftRange";
EntitySort = sortOrder == "Entity" ? "Entity_Desc" : "Entity";
LocationSort = sortOrder == "Location" ? "Location_Desc" : "Location";
NarrativeSort = sortOrder == "Narrative" ? "Narrative_Desc" : "Narrative";
FullNameSort = sortOrder == "FullName" ? "FullName_Desc" : "FullName";
RecordLockedSort = sortOrder == "Locked" ? "NotLocked" : "Locked";
OfficerNameSort = sortOrder == "OfficerName" ? "OfficerName_Desc" : "OfficerName";
if (searchString != null)
pageIndex = 1;
else
searchString = currentFilter;
CurrentFilter = searchString;
IQueryable<SecurityCore.Models.SecurityLog> sort = from s in _context.SecurityLog select s;
if (!String.IsNullOrEmpty(searchString))
sort = sort.Where(s => s.Narrative.Contains(searchString)
|| s.RecordLocked.Contains(searchString)
|| s.EventDate.ToString().Contains(searchString)
|| s.ContactName.Contains(searchString)
|| s.Entity.Name.Contains(searchString)
|| s.Location.Name.Contains(searchString)
|| s.EventType.Name.Contains(searchString)
|| s.ShiftRange.Name.Contains(searchString)
|| s.ID.ToString().Contains(searchString)
|| s.SubjectFirst.Contains(searchString)
|| s.SubjectLast.Contains(searchString)
|| s.Officer.FullName.Contains(searchString)
);
switch (sortOrder)
case "ID_Desc":
sort = sort.OrderByDescending(s => s.ID);
break;
case "ID":
sort = sort.OrderBy(s => s.ID);
break;
case "EventDate":
sort = sort.OrderBy(s => s.EventDate);
break;
case "ContactName":
sort = sort.OrderBy(s => s.ContactName).ThenBy(s => s.EventDate);
break;
case "ContactName_Desc":
sort = sort.OrderByDescending(s => s.ContactName).ThenBy(s => s.EventDate);
break;
case "ShiftRange":
sort = sort.OrderBy(s => s.ShiftRange.Name).ThenBy(s => s.EventDate);
break;
case "ShiftRange_Desc":
sort = sort.OrderByDescending(s => s.ShiftRange.Name).ThenBy(s => s.EventDate);
break;
case "EventType":
sort = sort.OrderBy(s => s.EventType.Name).ThenBy(s => s.EventDate);
break;
case "EventType_Desc":
sort = sort.OrderByDescending(s => s.EventType.Name).ThenBy(s => s.EventDate);
break;
case "Entity":
sort = sort.OrderBy(s => s.Entity.Name).ThenBy(s => s.EventDate);
break;
case "Entity_Desc":
sort = sort.OrderByDescending(s => s.Entity.Name).ThenBy(s => s.EventDate);
break;
case "Location":
sort = sort.OrderBy(s => s.Location.Name).ThenBy(s => s.EventDate);
break;
case "Location_Desc":
sort = sort.OrderByDescending(s => s.Location.Name).ThenBy(s => s.EventDate);
break;
case "Narrative":
sort = sort.OrderBy(s => s.Narrative).ThenBy(s => s.EventDate);
break;
case "Narrative_Desc":
sort = sort.OrderByDescending(s => s.Narrative).ThenBy(s => s.EventDate);
break;
case "NotLocked":
sort = sort.OrderBy(s => s.RecordLocked).ThenBy(s => s.EventDate);
break;
case "Locked":
sort = sort.OrderByDescending(s => s.RecordLocked).ThenBy(s => s.EventDate);
break;
case "OfficerName":
sort = sort.OrderBy(s => s.Officer.FullName).ThenBy(s => s.EventDate);
break;
case "OfficerName_Desc":
sort = sort.OrderByDescending(s => s.Officer.FullName).ThenBy(s => s.EventDate);
break;
default:
sort = sort.OrderByDescending(s => s.EventDate);
break;
int pageSize = 12;
SecurityLog = await PaginatedList<SecurityLog>.CreateAsync(sort
.Include(a => a.Entity)
.Include(b => b.EventType)
.Include(c => c.Location)
.Include(d => d.ShiftRange)
.Include(e => e.Officer)
.Include(f => f.SecurityLogOfficer)
.AsNoTracking(), pageIndex ?? 1, pageSize);
//The Security Log Model
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel;
using ExpressiveAnnotations.Attributes;
namespace SecurityCore.Models
public class SecurityLog
public int ID get; set;
[DataType(DataType.Date)]
[DisplayFormat(ApplyFormatInEditMode = true, DataFormatString = "0:MM/dd/yyyy")]
[Required]
[Display(Name = "Event Date")]
public System.DateTime EventDate get; set;
[Required]
[Display(Name = "Shift Range")]
//[ForeignKey("ShiftRange")]
public Nullable<int> ShiftRangeID get; set;
[Required]
//[ForeignKey("EventType")]
[Display(Name = "Event Type")]
public Nullable<int> EventTypeID get; set;
[Required]
[Display(Name = "Event Start")]
[DataType(DataType.DateTime)]
[DisplayFormat(ApplyFormatInEditMode = true, DataFormatString = "0:MM/dd/yyyy hh:mm")]
public System.DateTime EventStart get; set;
[Required]
[Display(Name = "Event End")]
[DataType(DataType.DateTime)]
[DisplayFormat(ApplyFormatInEditMode = true, DataFormatString = "0:MM/dd/yyyy hh:mm")]
public System.DateTime EventEnd get; set;
[Required]
[Display(Name = "Reporting Person")]
public string ContactName get; set;
[Required]
//[ForeignKey("Entity")]
[Display(Name = "Entity")]
public Nullable<int> EntityID get; set;
[Required]
//[ForeignKey("Location")]
[Display(Name = "Location")]
public Nullable<int> LocationID get; set;
[Required]
public string Narrative get; set;
//Set length of narrative displayed
private int NarrativeLimit = 200;
[Display(Name = "Narrative")]
public string NarrativeTrimmed
get
if (Narrative.Length > this.NarrativeLimit)
return this.Narrative.Substring(0, this.NarrativeLimit) + "...";
else
return this.Narrative;
[Required]
[Display(Name = "Subject's First Name")]
public string SubjectFirst get; set;
[Required]
[Display(Name = "Subject's Last Name")]
public string SubjectLast get; set;
[Display(Name = "Subject's Name")]
public string FullName
get
return SubjectFirst + " " + SubjectLast;
[Display(Name = "Subject's B#/DOB")]
public string SubjectDOB get; set;
private string _RecordLocked;
[Display(Name = "Record Locked?")]
public string RecordLocked
get return _RecordLocked;
set
_RecordLocked = value;
if (_RecordLocked == "Y")
try
catch(Exception ex)
[Display(Name = "Entered By")]
public string EnteredBy get; set;
[Display(Name = "Create Date")]
[ReadOnly(true)]
[DataType(DataType.Date)]
public Nullable<System.DateTime> CreateDate get; set;
[Display(Name = "Modified Date")]
[DataType(DataType.DateTime)]
public Nullable<System.DateTime> ModifiedDate get; set;
[Display(Name = "Modified By")]
public string ModifiedBy get; set;
[Display(Name ="Number of Extinguishers")]
public Nullable<int> ExtinguisherNo get; set;
[Display(Name ="Total Blankets")]
public Nullable<int> BlanketNo get; set;
[Display(Name ="Cause of Alarm")]
public string FireAlarmCause get; set;
[Display(Name ="Doors Closed in Area?")]
public string DoorsClosed get; set;
[Display(Name ="Number of Staff Responding")]
public Nullable<int> StaffNo get; set;
public virtual Entity Entity get; set;
public virtual ShiftRange ShiftRange get; set;
public virtual EventType EventType get; set;
public virtual Location Location get; set;
public virtual Officer Officer get; set;
public virtual SecurityLogOfficer SecurityLogOfficer get; set;
//The Officer Model
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Threading.Tasks;
namespace SecurityCore.Models
public class Officer
[Required]
public int ID get; set;
//[Required]
[Display(Name = "Officer's First Name")]
public string FirstName get; set;
//[Required]
[Display(Name = "Officer's Last Name")]
public string LastName get; set;
[Display(Name = "Officer's Name")]
public string FullName
get
return FirstName + " " + LastName;
[Required]
public string Active get; set;
public string LoginName get; set;
public virtual SecurityLogOfficer SecurityLogOfficer get; set;
//The SecurityLogOfficer Model
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Threading.Tasks;
namespace SecurityCore.Models
public class SecurityLogOfficer
[Required]
public int ID get; set;
[Required]
public int SecurityLogID get; set;
public int OfficerID get; set;
//The Create Page that I am trying to post from…
using System;
using System.Linq;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Mvc.RazorPages;
using Microsoft.AspNetCore.Mvc.Rendering;
using SecurityCore.Models;
namespace SecurityCore.Pages.SecurityLogs
public class CreateModel : PageModel
private readonly SecurityCore.Models.SecurityCoreContext _context;
public CreateModel(SecurityCore.Models.SecurityCoreContext context)
_context = context;
public IActionResult OnGetAsync()
ViewData["EntityID"] = new SelectList(_context.Entity.Where(a=>a.Active == "Y"), "ID", "Name");
ViewData["ShiftRangeID"] = new SelectList(_context.ShiftRange.Where(a=>a.Active == "Y"), "ID", "Name");
ViewData["LocationID"] = new SelectList(_context.Location.Where(a=>a.Active == "Y"), "ID", "Name");
ViewData["EventTypeID"] = new SelectList(_context.EventType.Where(a=>a.Active == "Y"), "ID","Name");
ViewData["Officer"] = new SelectList(_context.Officer.Where(a => a.Active == "Y"), "ID", "FullName");
return Page();
[TempData]
public string Message get; set;
[BindProperty]
public SecurityLog SecurityLog get; set;
[BindProperty(SupportsGet = true)]
public int entity get; set;
public int eventType get; set;
SelectList FilteredLocation;
SelectList FilteredEventType;
public JsonResult OnGetLocations()
FilteredLocation = new SelectList(_context.Location.Where(c => c.EntityID == entity).Where(c =>c.Active == "Y").OrderBy(c =>c.Name), "ID", "Name");
return new JsonResult(FilteredLocation);
public JsonResult OnGetEventTypes()
FilteredEventType = new SelectList(_context.EventType.Where(c => c.EntityID == entity).Where(c => c.Active == "Y").OrderBy(c => c.Name), "ID", "Name");
return new JsonResult(FilteredEventType);
// To protect from overposting attacks, please enable the specific properties you want to bind to, for
// more details see https://aka.ms/RazorPagesCRUD.
public async Task<IActionResult> OnPostAsync()
ModelState.Remove("EnteredBy");
ModelState.Remove("ModifiedDate");
ModelState.Remove("CreateDate");
ModelState.Remove("ModifiedBy");
ModelState.Remove("RecordLocked");
if (!ModelState.IsValid)
return Page();
SecurityLog.EnteredBy = User.Identity.Name;
SecurityLog.ModifiedDate = DateTime.Now;
SecurityLog.CreateDate = DateTime.Now;
SecurityLog.ModifiedBy = User.Identity.Name;
SecurityLog.RecordLocked = "N";
_context.SecurityLog.Add(SecurityLog);
await _context.SaveChangesAsync();
Message = "Entry added successfully!";
return RedirectToPage("Index");
这是我的数据库架构和示例结果
任何帮助将不胜感激！
【问题讨论】：
您缺少列“Invalid column name 'OfficerID'”，请先修复它。 我在 SecurityLogOfficer 表和 SecurityLogOfficer 模型中都有这一列。其他地方需要吗？ 【参考方案1】：根据错误描述，Officer 表只有 ID 列。它没有OfficerID 列。尝试更改代码以反映 ID 列。
【讨论】：
我很困惑。属性OfficerID 仅在SecurityLogOfficer.cs 中声明。在 SecurityLog\Index 页面中，我引用了来自 Officer.cs 的 FullName 属性。这是通过公共虚拟官员获取访问的；放;财产。 更新 - 如果我将列“OfficerID”添加到 SecurityLog 表中，我不想这样做......错误消息消失了 securitylog 索引页面为同一事件，因为有 2 名安保人员分配给该事件。我怎样才能让安全人员在一列中显示逗号连接的人员列表？ 我遇到的最大问题是我试图发布值并且在我的模型中没有直接的字段可以绑定。我看过一些使用 MVC 处理此问题的帖子，但没有看到任何没有控制器、动作和视图的示例。如何仅使用 asp.net Web 应用程序剃须刀页面做到这一点？以上是关于无法在剃刀页面表单的选择列表中保存多个选择的主要内容，如果未能解决你的问题，请参考以下文章