构建错误：OBJECT 是命名空间，但用作类型

Question

我正在尝试实现 ASP.NET Core MVC 应用程序，以下代码抛出错误：

“AdverseEventReport”是一个命名空间，但像类型一样使用

据我所知，这与实例化问题有关。任何可以提供的帮助将不胜感激。感谢您的帮助。

这是模型类：

namespace AdverseEventReportAPP.Models
{
    public class AdverseEventReport
    {
        public required string Date { get; set; }
        public required string PatientID { get; set; }
        public required string PreExistingConditions { get; set; }
        public required string AdverseSymptoms { get; set; }
        public required string Severity { get; set; }
        public bool ReportableToFDA { get; set; }
        public required string Reasoning { get; set; }
        public required string DrugName { get; set; }
        public required string DrugType { get; set; }
        public required string ReasonForTaking { get; set; }
    }
}

这是控制器的代码：

using AdverseEventReportAPP.Models; // Ensure the correct model namespace is used

namespace AdverseEventReportApp.Controllers
{
    public class AdverseEventController : Controller
    {
        [HttpGet]
        public IActionResult Index()
        {
            // Correct instantiation of the AdverseEventReport model
            var model = new AdverseEventReportAPP
            {
                Date = "2024-10-21",
                PatientID = "12345",
                PreExistingConditions = "None",
                AdverseSymptoms = "Headache, Dizziness",
                Severity = "Moderate",
                ReportableToFDA = true,
                Reasoning = "Critical side effect",
                DrugName = "Aspirin",
                DrugType = "Analgesic",
                ReasonForTaking = "Pain Relief"
            };

            return View(model);
        }

        [HttpPost]
        public IActionResult Submit(AdverseEventReport model)
        {
            if (ModelState.IsValid)
            {
                // Save logic here
                return RedirectToAction("Index");
            }

            return View("Index", model);
        }
    }
}

这是表格的代码：

@model AdverseEventReportAPP.Models.AdverseEventReport

<form asp-action="Submit" method="post">
    <table style="width: 100%;">
        <tr>
            <td><img src="http://localhost/AdverseEvent/images/AdverseBanner.jpg" alt="" width="508" height="67" /></td>
        </tr>
    </table>

    <table style="width: 100%;">
        <tr><td><hr /></td></tr>
    </table>

    <table style="width: 100%;">
        <tr>
            <td style="width: 20%;"><strong>Date:</strong></td>
            <td style="width: 65%;"><input type="text" name="Date" value="@Model.Date" /></td>
        </tr>
        <tr>
            <td style="width: 20%;"><strong>Patient ID:</strong></td>
            <td style="width: 65%;"><input type="text" name="PatientID" value="@Model.PatientID" /></td>
        </tr>
        <tr>
            <td style="width: 20%;"><strong>Pre-existing Conditions:</strong></td>
            <td style="width: 65%;"><input type="text" name="PreExistingConditions" value="@Model.PreExistingConditions" /></td>
        </tr>
        <tr>
            <td style="width: 20%;"><strong>Adverse Symptoms:</strong></td>
            <td style="width: 65%;"><input type="text" name="AdverseSymptoms" value="@Model.AdverseSymptoms" /></td>
        </tr>
        <tr>
            <td style="width: 20%;"><strong>Severity:</strong></td>
            <td style="width: 65%;"><input type="text" name="Severity" value="@Model.Severity" /></td>
        </tr>
        <tr>
            <td style="width: 20%;"><strong>Reportable to FDA:</strong></td>
            <td style="width: 65%;"><input type="checkbox" name="ReportableToFDA" @(Model.ReportableToFDA ? "checked" : "") /></td>
        </tr>
        <tr>
            <td style="width: 20%;"><strong>Reasoning:</strong></td>
            <td style="width: 65%;"><input type="text" name="Reasoning" value="@Model.Reasoning" /></td>
        </tr>
    </table>

    <table style="width: 100%;">
        <tr><td><hr /></td></tr>
    </table>

    <table style="width: 100%;">
        <tr>
            <td style="width: 20%;"><strong>Drug Name:</strong></td>
            <td style="width: 65%;"><input type="text" name="DrugName" value="@Model.DrugName" /></td>
        </tr>
        <tr>
            <td style="width: 20%;"><strong>Drug Type:</strong></td>
            <td style="width: 65%;"><input type="text" name="DrugType" value="@Model.DrugType" /></td>
        </tr>
        <tr>
            <td style="width: 20%;"><strong>Reason for taking Medication:</strong></td>
            <td style="width: 65%;"><input type="text" name="ReasonForTaking" value="@Model.ReasonForTaking" /></td>
        </tr>
    </table>

    <table style="width: 100%;">
        <tr><td><hr /></td></tr>
    </table>

    <table style="width: 100%;">
        <tr>
            <td><img src="http://localhost/AdverseEvent/images/Blue_Prism_AWS_Partnership.jpg" alt="" width="320" height="104" /></td>
        </tr>
    </table>

    <button type="submit">Submit</button>
</form>

Answer 1

如果存在命名空间冲突，则可以向命名空间添加别名。示例：

using MyAlias = AdverseEventReportAPP.Models;

namespace AdverseEventReportApp.Controllers
{
    [HttpPost]
    public IActionResult Submit(MyAlias.AdverseEventReport model)
    {
        if (ModelState.IsValid)
        {
            // Save logic here
            return RedirectToAction("Index");
        }

        return View("Index", model);
    }
}

对于视图：

@using MyAdverseEventReport = AdverseEventReportAPP.Models.AdverseEventReport
...

但我建议检查整个项目的命名空间约定......