Asp.net mvc 视图模型大部分返回为空

我正在为从同事那里继承的ASP.NET MVC应用程序添加附加功能。出于某种原因，除了控制器上的

AddParticipant

方法的视图模型参数中的

SelectedPartyRole

之外，所有属性都是

null

，尽管之前从数据库返回了数据

型号：

public class AddParticipantViewModel
{
    public string ClaimNumber { get; set; }
    public string PolicyNumber { get; set; }
    public string PartyNumber { get; set; }
    public string PartyName { get; set; }
    public string TaxID { get; set; }
    public string SelectedPartyRole { get; set; }
    public Dictionary<string, string> ValidPartyRoles { get; set; }
}

@model TN_IntegrationDashboard.Web.Models.AddParticipantViewModel

@{
    ViewBag.Title = "AddClaimParticipant";
    Layout = "~/Views/Shared/_Layout.cshtml";
 }

<div id="sectionTitle">
    <h2>Add Claim Participant</h2>
</div>
<br /><br /><br />
<fieldset>
<legend></legend>

<div class="status">@ViewBag.Result</div>
<br /><br />
<table style="width: 100%;">
    <tr style="background-color:#3B4044;color:white;height:45px; vertical-align: central;font-weight:600;">
        <th>Claim Number</th>
        <th>Policy Number</th>
        <th>Party Number</th>
        <th>Party Name</th>
        <th>Tax ID</th>
    </tr>
    <tr>
        <td>@Html.DisplayFor(model => model.ClaimNumber)</td>
        <td>@Html.DisplayFor(model => model.PolicyNumber)</td>
        <td>@Html.DisplayFor(model => model.PartyNumber)</td>
        <td>@Html.DisplayFor(model => model.PartyName)</td>
        <td>@Html.DisplayFor(model => model.TaxID)</td>
    </tr>
</table>

<br /><br /><br />
<div>
    <button type="button" id="ShowHide">Select Role</button>
</div>


<br /><br /><br />

<div id="ShowHideUpdateControls" hidden="@(ViewBag.Success = true ? "" : "hidden")">

@using (Html.BeginForm()) {
    @Html.AntiForgeryToken()
    @Html.ValidationSummary(true)

<table style="width: 100%;">
    <tr style="background-color:#3B4044;color:white;height:45px; vertical-align: central;font-weight:600;">
        <th>Valid Party Roles</th>
    </tr>
    <tr>
        <td>@Html.DropDownListFor(m => m.SelectedPartyRole,
                                  new SelectList(Model.ValidPartyRoles, "Key", "Value"),
                                  "")</td>
    </tr>
</table>
 <br /><br /><br />

 <input type="submit" value="Save" formaction='@Url.Action("AddParticipant")'>

 }

</div>
</fieldset>

public class ClaimController : Controller
{
    [HttpGet]
    [AuthorizeByConfig(RolesAppSettingKey = "", UsersAppSettingKey = "ClaimUpdateAuthorizedUsers")]
    public ActionResult SearchForClaimParticipant()
    {
        return View();
    }

    [HttpPost]
    [AuthorizeByConfig(RolesAppSettingKey = "", UsersAppSettingKey = "ClaimUpdateAuthorizedUsers")]
    public ActionResult SearchForClaim(string claimNumber)
    {
        IClaimManager proxy = CreateClaimManagerProxy();
        var claim = proxy.GetClaim(claimNumber);

        if (claim == null)
        {
            ViewBag.Status = "Claim record not found. Please enter a different claim number.";
            return View("SearchForClaim");
        }
        else
        {
            var modifyClaimViewModel = new ClaimViewModel
            {
                ClaimNumber = claim.ClaimNumber,
                NotificationDate = claim.NotificationDate
            };
            return View("ModifyClaim", modifyClaimViewModel);
        }
    }

    [HttpPost]
    [AuthorizeByConfig(RolesAppSettingKey = "", UsersAppSettingKey = "ClaimUpdateAuthorizedUsers")]
    public ActionResult SearchForClaimParticipant(string claimNumber, string partyNumber)
    {
        IClaimManager claimProxy = CreateClaimManagerProxy();
        IPartyAdminManager partyProxy = CreatePartyAdminManagerProxy();

        var claim = claimProxy.GetClaim(claimNumber);
        var party = partyProxy.GetParty(partyNumber);

        var errorMessage = string.Empty;
        if (claim == null)
            string.Concat(errorMessage, "Claim record not found. Please enter a different claim number. ");
        if (party == null)
            string.Concat(errorMessage, "Party record not found. Please enter a different party number.");

        if (errorMessage.Length > 0)
        {
            ViewBag.Status = errorMessage;
            return View("SearchForClaimParticipant");
        }
        else
        {
            Dictionary<string, string> roles = partyProxy.GetPartyRoles();
            string partyName = string.Empty;

            if (party.BusinessName == null || party.BusinessName == string.Empty)
                partyName = string.Concat(party.FirstName, " ", string.Concat(party.MiddleName, " ") ?? string.Empty, party.LastName);
            else
                partyName = party.BusinessName;

            var addParticipantViewModel = new AddParticipantViewModel
            {
                ClaimNumber = claim.ClaimNumber,
                PolicyNumber = claim.PolicyNumber,
                PartyNumber = partyNumber,
                PartyName = partyName,
                TaxID = party.TaxID,
                ValidPartyRoles = roles
            };
            return View("AddClaimParticipant", addParticipantViewModel);
        }
    }

    [HttpPost]
    [AuthorizeByConfig(RolesAppSettingKey = "", UsersAppSettingKey = "ClaimUpdateAuthorizedUsers")]
    public ActionResult AddParticipant(AddParticipantViewModel viewModel)
    {
        if (ModelState.IsValid)
        {
            IClaimManager proxy = CreateClaimManagerProxy();
            string result = proxy.AddParticpant(viewModel.ClaimNumber, viewModel.PartyNumber, viewModel.SelectedPartyRole);
            ViewBag.Result = result;
        }
        return View("AddClaimParticipant");
    }

    private static IIntegrationDashboardManager CreateDashboardManagerProxy()
    {
        ChannelFactory<IIntegrationDashboardManager> _channelFactory;
        _channelFactory = new ChannelFactory<IIntegrationDashboardManager>("*");
        IIntegrationDashboardManager channel = _channelFactory.CreateChannel();
        return channel;
    }

    private static IClaimManager CreateClaimManagerProxy()
    {
        ChannelFactory<IClaimManager> _channelFactory;
        _channelFactory = new ChannelFactory<IClaimManager>("*");
        IClaimManager channel = _channelFactory.CreateChannel();
        return channel;
    }

    private static IPartyAdminManager CreatePartyAdminManagerProxy()
    {
        ChannelFactory<IPartyAdminManager> _channelFactory;
        _channelFactory = new ChannelFactory<IPartyAdminManager>("*");
        IPartyAdminManager channel = _channelFactory.CreateChannel();
        return channel;
    }
}

公共类AddParticipantViewModel
{
公共字符串ClaimNumber{get；set；}
公共字符串PolicyNumber{get；set；}
公共字符串PartyNumber{get；set；}
公共字符串PartyName{get；set；}
公共字符串TaxID{get；set；}
公共字符串SelectedPartyRole{get；set；}
公共字典ValidPartyRoles{get；set；}
}

查看：

public class AddParticipantViewModel
{
    public string ClaimNumber { get; set; }
    public string PolicyNumber { get; set; }
    public string PartyNumber { get; set; }
    public string PartyName { get; set; }
    public string TaxID { get; set; }
    public string SelectedPartyRole { get; set; }
    public Dictionary<string, string> ValidPartyRoles { get; set; }
}

@model TN_IntegrationDashboard.Web.Models.AddParticipantViewModel

@{
    ViewBag.Title = "AddClaimParticipant";
    Layout = "~/Views/Shared/_Layout.cshtml";
 }

<div id="sectionTitle">
    <h2>Add Claim Participant</h2>
</div>
<br /><br /><br />
<fieldset>
<legend></legend>

<div class="status">@ViewBag.Result</div>
<br /><br />
<table style="width: 100%;">
    <tr style="background-color:#3B4044;color:white;height:45px; vertical-align: central;font-weight:600;">
        <th>Claim Number</th>
        <th>Policy Number</th>
        <th>Party Number</th>
        <th>Party Name</th>
        <th>Tax ID</th>
    </tr>
    <tr>
        <td>@Html.DisplayFor(model => model.ClaimNumber)</td>
        <td>@Html.DisplayFor(model => model.PolicyNumber)</td>
        <td>@Html.DisplayFor(model => model.PartyNumber)</td>
        <td>@Html.DisplayFor(model => model.PartyName)</td>
        <td>@Html.DisplayFor(model => model.TaxID)</td>
    </tr>
</table>

<br /><br /><br />
<div>
    <button type="button" id="ShowHide">Select Role</button>
</div>


<br /><br /><br />

<div id="ShowHideUpdateControls" hidden="@(ViewBag.Success = true ? "" : "hidden")">

@using (Html.BeginForm()) {
    @Html.AntiForgeryToken()
    @Html.ValidationSummary(true)

<table style="width: 100%;">
    <tr style="background-color:#3B4044;color:white;height:45px; vertical-align: central;font-weight:600;">
        <th>Valid Party Roles</th>
    </tr>
    <tr>
        <td>@Html.DropDownListFor(m => m.SelectedPartyRole,
                                  new SelectList(Model.ValidPartyRoles, "Key", "Value"),
                                  "")</td>
    </tr>
</table>
 <br /><br /><br />

 <input type="submit" value="Save" formaction='@Url.Action("AddParticipant")'>

 }

</div>
</fieldset>

public class ClaimController : Controller
{
    [HttpGet]
    [AuthorizeByConfig(RolesAppSettingKey = "", UsersAppSettingKey = "ClaimUpdateAuthorizedUsers")]
    public ActionResult SearchForClaimParticipant()
    {
        return View();
    }

    [HttpPost]
    [AuthorizeByConfig(RolesAppSettingKey = "", UsersAppSettingKey = "ClaimUpdateAuthorizedUsers")]
    public ActionResult SearchForClaim(string claimNumber)
    {
        IClaimManager proxy = CreateClaimManagerProxy();
        var claim = proxy.GetClaim(claimNumber);

        if (claim == null)
        {
            ViewBag.Status = "Claim record not found. Please enter a different claim number.";
            return View("SearchForClaim");
        }
        else
        {
            var modifyClaimViewModel = new ClaimViewModel
            {
                ClaimNumber = claim.ClaimNumber,
                NotificationDate = claim.NotificationDate
            };
            return View("ModifyClaim", modifyClaimViewModel);
        }
    }

    [HttpPost]
    [AuthorizeByConfig(RolesAppSettingKey = "", UsersAppSettingKey = "ClaimUpdateAuthorizedUsers")]
    public ActionResult SearchForClaimParticipant(string claimNumber, string partyNumber)
    {
        IClaimManager claimProxy = CreateClaimManagerProxy();
        IPartyAdminManager partyProxy = CreatePartyAdminManagerProxy();

        var claim = claimProxy.GetClaim(claimNumber);
        var party = partyProxy.GetParty(partyNumber);

        var errorMessage = string.Empty;
        if (claim == null)
            string.Concat(errorMessage, "Claim record not found. Please enter a different claim number. ");
        if (party == null)
            string.Concat(errorMessage, "Party record not found. Please enter a different party number.");

        if (errorMessage.Length > 0)
        {
            ViewBag.Status = errorMessage;
            return View("SearchForClaimParticipant");
        }
        else
        {
            Dictionary<string, string> roles = partyProxy.GetPartyRoles();
            string partyName = string.Empty;

            if (party.BusinessName == null || party.BusinessName == string.Empty)
                partyName = string.Concat(party.FirstName, " ", string.Concat(party.MiddleName, " ") ?? string.Empty, party.LastName);
            else
                partyName = party.BusinessName;

            var addParticipantViewModel = new AddParticipantViewModel
            {
                ClaimNumber = claim.ClaimNumber,
                PolicyNumber = claim.PolicyNumber,
                PartyNumber = partyNumber,
                PartyName = partyName,
                TaxID = party.TaxID,
                ValidPartyRoles = roles
            };
            return View("AddClaimParticipant", addParticipantViewModel);
        }
    }

    [HttpPost]
    [AuthorizeByConfig(RolesAppSettingKey = "", UsersAppSettingKey = "ClaimUpdateAuthorizedUsers")]
    public ActionResult AddParticipant(AddParticipantViewModel viewModel)
    {
        if (ModelState.IsValid)
        {
            IClaimManager proxy = CreateClaimManagerProxy();
            string result = proxy.AddParticpant(viewModel.ClaimNumber, viewModel.PartyNumber, viewModel.SelectedPartyRole);
            ViewBag.Result = result;
        }
        return View("AddClaimParticipant");
    }

    private static IIntegrationDashboardManager CreateDashboardManagerProxy()
    {
        ChannelFactory<IIntegrationDashboardManager> _channelFactory;
        _channelFactory = new ChannelFactory<IIntegrationDashboardManager>("*");
        IIntegrationDashboardManager channel = _channelFactory.CreateChannel();
        return channel;
    }

    private static IClaimManager CreateClaimManagerProxy()
    {
        ChannelFactory<IClaimManager> _channelFactory;
        _channelFactory = new ChannelFactory<IClaimManager>("*");
        IClaimManager channel = _channelFactory.CreateChannel();
        return channel;
    }

    private static IPartyAdminManager CreatePartyAdminManagerProxy()
    {
        ChannelFactory<IPartyAdminManager> _channelFactory;
        _channelFactory = new ChannelFactory<IPartyAdminManager>("*");
        IPartyAdminManager channel = _channelFactory.CreateChannel();
        return channel;
    }
}

@model TN\u IntegrationDashboard.Web.Models.AddParticipantViewModel
@{
ViewBag.Title=“addclaicipant”；
Layout=“~/Views/Shared/_Layout.cshtml”；
}
添加索赔参与者




@查看包。结果



索赔编号
保单号码
党号
党名
税号
@DisplayFor（model=>model.ClaimNumber）
@DisplayFor（model=>model.PolicyNumber）
@DisplayFor（model=>model.PartyNumber）
@DisplayFor（model=>model.PartyName）
@DisplayFor（model=>model.TaxID）




选择角色




@使用（Html.BeginForm（））{
@Html.AntiForgeryToken（）
@Html.ValidationSummary（true）
有效的参与方角色
@Html.DropDownListFor（m=>m.SelectedPartyRole，
新的选择列表（Model.ValidPartyRoles，“键”、“值”），
"")




}

控制器：

public class AddParticipantViewModel
{
    public string ClaimNumber { get; set; }
    public string PolicyNumber { get; set; }
    public string PartyNumber { get; set; }
    public string PartyName { get; set; }
    public string TaxID { get; set; }
    public string SelectedPartyRole { get; set; }
    public Dictionary<string, string> ValidPartyRoles { get; set; }
}

@model TN_IntegrationDashboard.Web.Models.AddParticipantViewModel

@{
    ViewBag.Title = "AddClaimParticipant";
    Layout = "~/Views/Shared/_Layout.cshtml";
 }

<div id="sectionTitle">
    <h2>Add Claim Participant</h2>
</div>
<br /><br /><br />
<fieldset>
<legend></legend>

<div class="status">@ViewBag.Result</div>
<br /><br />
<table style="width: 100%;">
    <tr style="background-color:#3B4044;color:white;height:45px; vertical-align: central;font-weight:600;">
        <th>Claim Number</th>
        <th>Policy Number</th>
        <th>Party Number</th>
        <th>Party Name</th>
        <th>Tax ID</th>
    </tr>
    <tr>
        <td>@Html.DisplayFor(model => model.ClaimNumber)</td>
        <td>@Html.DisplayFor(model => model.PolicyNumber)</td>
        <td>@Html.DisplayFor(model => model.PartyNumber)</td>
        <td>@Html.DisplayFor(model => model.PartyName)</td>
        <td>@Html.DisplayFor(model => model.TaxID)</td>
    </tr>
</table>

<br /><br /><br />
<div>
    <button type="button" id="ShowHide">Select Role</button>
</div>


<br /><br /><br />

<div id="ShowHideUpdateControls" hidden="@(ViewBag.Success = true ? "" : "hidden")">

@using (Html.BeginForm()) {
    @Html.AntiForgeryToken()
    @Html.ValidationSummary(true)

<table style="width: 100%;">
    <tr style="background-color:#3B4044;color:white;height:45px; vertical-align: central;font-weight:600;">
        <th>Valid Party Roles</th>
    </tr>
    <tr>
        <td>@Html.DropDownListFor(m => m.SelectedPartyRole,
                                  new SelectList(Model.ValidPartyRoles, "Key", "Value"),
                                  "")</td>
    </tr>
</table>
 <br /><br /><br />

 <input type="submit" value="Save" formaction='@Url.Action("AddParticipant")'>

 }

</div>
</fieldset>

public class ClaimController : Controller
{
    [HttpGet]
    [AuthorizeByConfig(RolesAppSettingKey = "", UsersAppSettingKey = "ClaimUpdateAuthorizedUsers")]
    public ActionResult SearchForClaimParticipant()
    {
        return View();
    }

    [HttpPost]
    [AuthorizeByConfig(RolesAppSettingKey = "", UsersAppSettingKey = "ClaimUpdateAuthorizedUsers")]
    public ActionResult SearchForClaim(string claimNumber)
    {
        IClaimManager proxy = CreateClaimManagerProxy();
        var claim = proxy.GetClaim(claimNumber);

        if (claim == null)
        {
            ViewBag.Status = "Claim record not found. Please enter a different claim number.";
            return View("SearchForClaim");
        }
        else
        {
            var modifyClaimViewModel = new ClaimViewModel
            {
                ClaimNumber = claim.ClaimNumber,
                NotificationDate = claim.NotificationDate
            };
            return View("ModifyClaim", modifyClaimViewModel);
        }
    }

    [HttpPost]
    [AuthorizeByConfig(RolesAppSettingKey = "", UsersAppSettingKey = "ClaimUpdateAuthorizedUsers")]
    public ActionResult SearchForClaimParticipant(string claimNumber, string partyNumber)
    {
        IClaimManager claimProxy = CreateClaimManagerProxy();
        IPartyAdminManager partyProxy = CreatePartyAdminManagerProxy();

        var claim = claimProxy.GetClaim(claimNumber);
        var party = partyProxy.GetParty(partyNumber);

        var errorMessage = string.Empty;
        if (claim == null)
            string.Concat(errorMessage, "Claim record not found. Please enter a different claim number. ");
        if (party == null)
            string.Concat(errorMessage, "Party record not found. Please enter a different party number.");

        if (errorMessage.Length > 0)
        {
            ViewBag.Status = errorMessage;
            return View("SearchForClaimParticipant");
        }
        else
        {
            Dictionary<string, string> roles = partyProxy.GetPartyRoles();
            string partyName = string.Empty;

            if (party.BusinessName == null || party.BusinessName == string.Empty)
                partyName = string.Concat(party.FirstName, " ", string.Concat(party.MiddleName, " ") ?? string.Empty, party.LastName);
            else
                partyName = party.BusinessName;

            var addParticipantViewModel = new AddParticipantViewModel
            {
                ClaimNumber = claim.ClaimNumber,
                PolicyNumber = claim.PolicyNumber,
                PartyNumber = partyNumber,
                PartyName = partyName,
                TaxID = party.TaxID,
                ValidPartyRoles = roles
            };
            return View("AddClaimParticipant", addParticipantViewModel);
        }
    }

    [HttpPost]
    [AuthorizeByConfig(RolesAppSettingKey = "", UsersAppSettingKey = "ClaimUpdateAuthorizedUsers")]
    public ActionResult AddParticipant(AddParticipantViewModel viewModel)
    {
        if (ModelState.IsValid)
        {
            IClaimManager proxy = CreateClaimManagerProxy();
            string result = proxy.AddParticpant(viewModel.ClaimNumber, viewModel.PartyNumber, viewModel.SelectedPartyRole);
            ViewBag.Result = result;
        }
        return View("AddClaimParticipant");
    }

    private static IIntegrationDashboardManager CreateDashboardManagerProxy()
    {
        ChannelFactory<IIntegrationDashboardManager> _channelFactory;
        _channelFactory = new ChannelFactory<IIntegrationDashboardManager>("*");
        IIntegrationDashboardManager channel = _channelFactory.CreateChannel();
        return channel;
    }

    private static IClaimManager CreateClaimManagerProxy()
    {
        ChannelFactory<IClaimManager> _channelFactory;
        _channelFactory = new ChannelFactory<IClaimManager>("*");
        IClaimManager channel = _channelFactory.CreateChannel();
        return channel;
    }

    private static IPartyAdminManager CreatePartyAdminManagerProxy()
    {
        ChannelFactory<IPartyAdminManager> _channelFactory;
        _channelFactory = new ChannelFactory<IPartyAdminManager>("*");
        IPartyAdminManager channel = _channelFactory.CreateChannel();
        return channel;
    }
}

公共类ClaimController:控制器
{
[HttpGet]
[AuthorizeByConfig（RolesAppSettingKey=“”，UsersAppSettingKey=“ClaimUpdateAuthorizedUsers”）]
公共行动结果搜索Clainficipant（）
{
返回视图（）；
}
[HttpPost]
[AuthorizeByConfig（RolesAppSettingKey=“”，UsersAppSettingKey=“ClaimUpdateAuthorizedUsers”）]
public ActionResult SearchForClaim（字符串claimNumber）
{
IClaimManager proxy=createClaimanagerProxy（）；
var claim=proxy.GetClaim（claimNumber）；
如果（索赔==null）
{
ViewBag.Status=“未找到索赔记录。请输入其他索赔编号。”；
返回视图（“SearchForClaim”）；
}
其他的
{
var modifyClaimViewModel=新ClaimViewModel
{
ClaimNumber=claim.ClaimNumber，
NotificationDate=索赔。NotificationDate
};
返回视图（“ModifyClaim”，modifyClaimViewModel）；
}
}
[HttpPost]
[AuthorizeByConfig（RolesAppSettingKey=“”，UsersAppSettingKey=“ClaimUpdateAuthorizedUsers”）]
public ActionResult SearchForClaimicPant（字符串claimNumber，字符串partyNumber）
{
IClaimManager clainproxy=createclaiminanagerproxy（）；
IPartyAdminManager partyProxy=CreatePartyAdminManager Proxy（）；
var索赔=claimProxy.GetClaim（索赔编号）；
var party=partyProxy.GetParty（partyNumber）；
var errorMessage=string.Empty；
如果（索赔==null）
string.Concat（错误消息，“未找到索赔记录。请输入其他索赔编号”）；
如果（参与方==null）
string.Concat（错误消息，“未找到参与方记录。请输入其他参与方编号”）；
如果（errorMessage.Length>0）
{
ViewBag.Status=错误消息；
返回视图（“SearchForClaicePant”）；
}
其他的
{
字典角色=partyProxy.GetPartyRoles（）；
string partyName=string.Empty；
if（party.BusinessName==null | | party.BusinessName==string.Empty）
partyName=string.Concat（party.FirstName，“”，string.Concat（party.MiddleName，“”）？string.Empty，party.LastName）；
其他的
partyName=party.BusinessName；
var addParticipantViewModel=新的addParticipantViewModel
{
ClaimNumber=claim.ClaimNumber，
保单编号=索赔。保单编号，
PartyNumber=PartyNumber，
PartyName=PartyName，
TaxID=party.TaxID，
ValidPartyRoles=角色
};
返回视图（“AddClaInficiPant”，addParticipantViewModel）；
}
}
[HttpPost]
[AuthorizeByConfig（RolesAppSettingKey=“”，UsersAppSettingKey=“ClaimUpdateAuthorizedUsers”）]
公共操作结果AddParticipant（AddParticipantViewModel viewModel）
{
if（ModelState.IsValid）
{
IClaimManager proxy=createClaimanagerProxy（）；
字符串结果=proxy.AddParticpant（viewModel.ClaimNumber、viewModel.PartyNumber、viewModel.SelectedPartyRole）；
ViewBag.Result=结果；
}
返回视图（“addclaicipant”）；
}
专用静态IIintegrationDashboardManager CreateDashboardManagerProxy（）
{
渠道工厂(ChannelFactory);；
_channelFactory=新的channelFactory（“*”）；
IIintegrationDashboardManager通道=_channelFactory.CreateChannel（）；
返回通道；
}
专用静态IClaimManager CreateClaimanagerProxy（）
{
渠道工厂(ChannelFactory);；
_channelFactory=新的channelFactory（“*”）；
IClaimManager通道=_channelFactory.CreateChannel（）；
返回通道；
}
专用静态IPartyAdminManager CreatePartyAdminManagerProxy（）
{
渠道工厂(ChannelFactory);；
_channelFactory=新的channelFactory（“*”）；
IPartyAdminManager通道=_channelFactory.CreateChannel（）；
返回通道；
}
}