ASP.NETMVC、C#、EntityFramework表单中的错误解决方案?
创始人
2024-11-12 05:30:09
0

如果你在使用 ASP.NET MVC、C#、Entity Framework 构建表单的时候遇到了错误,可能需要检查以下几个方面:

  1. 确认实体是否正确:检查数据模型、属性名称和数据类型是否与表单一致。

  2. 检查控制器代码:确保控制器代码正确地获取表单数据并将其保存到实体中。

  3. 检查视图代码:检查表单元素的名称和类型是否正确,并确保表单元素与实体属性相对应。

代码示例:

  1. 实体类:

public class Person { public int Id { get; set; } public string Name { get; set; } public int Age { get; set; } }

  1. 控制器代码:

public class PersonController : Controller { private ApplicationDbContext _context;

public PersonController() 
{
    _context = new ApplicationDbContext();
}

// GET: Create Person
public ActionResult Create() 
{
    return View();
}

// POST: Create Person
[HttpPost]
[ValidateAntiForgeryToken]
public ActionResult Create(Person person) 
{
    if (ModelState.IsValid) 
    {
        _context.People.Add(person);
        _context.SaveChanges();
        return RedirectToAction("Index", "Home");
    }
    return View(person);
}

}

  1. 视图代码:

@model Person

@using (Html.BeginForm("Create", "Person")) { @Html.AntiForgeryToken()

@Html.LabelFor(model => model.Name, htmlAttributes: new { @class = "control-label col-md-2" })
@Html.EditorFor(model => model.Name, new { htmlAttributes = new { @class = "form-control" } }) @Html.ValidationMessageFor(model => model.Name, "", new { @class = "text-danger" })
@Html.LabelFor(model => model.Age, htmlAttributes: new { @class = "control-label col-md-2" })
@Html.EditorFor(model => model.Age, new { htmlAttributes = new { @class = "form-control" } }) @Html.ValidationMessageFor(model => model.Age, "", new { @class = "text-danger" })

}

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