Question

我在ASP.NET MVC / C＃中将值（字符串）插入数据库时遇到问题。我被困了，因为我不知道该怎么办。

@using (Html.BeginForm("Index", "Upload", FormMethod.Post))
            {
                @Html.Label("Name:")
                @Html.TextBox("name", null, new { @class = "form-control"})

                @Html.Label("Surname:")
                @Html.TextBox("surname", null, new { @class = "form-control" })

                @Html.Label("Email:")
                @Html.TextBox("email", null, new { @class = "form-control" })

                @Html.Label("Description:")
                @Html.TextArea("description", null, new { @class = "form-control" })

                <br/>
                <input type="submit" class="btn btn-primary" value="Send" />
            }

我的模特是空的......： - （

namespace GikStore.Models {
   public class ContactModels
   {
   }
}

我是否必须对控制器做任何事情？

Answer 1

在UploadController中你应该有这样的东西：

    [HttpGet]
    public ActionResult Index()
    {
        return View(new ContactModels());
    }
    [HttpPost, Admin]
    public ActionResult Index(ContactModels model)
    {

        if (!ModelState.IsValid)
        {
            return View(model);
        }

        //Call a service that saves to database

        return RedirectToAction("ListOfContacts");
    }

RedirectToAction("ListOfContacts");只是一个例子。您可以重定向到任何操作和控制器。

你的模型应该是这样的：

public class ContactModels
{
    public string name { get; set; }
    public string surname { get; set; }
    public string email { get; set; }
    public string description { get; set; }
}

Answer 2

首先创建一个Model类

 public class Contact
{
 public string name { get; set; }
 public string surname { get; set; }
 public string email { get; set; }
 public string description { get; set; }
}

更改视图

   @model.Contact
   @using (Html.BeginForm("Index", "Upload", FormMethod.Post))
        {
            @Html.Label("Name:")
            @Html.TextBoxFor(m=>m.name, new { @class = "form-control"})

            @Html.Label("Surname:")
            @Html.TextBoxFor(m=>m.surname, new { @class = "form-control" })

            @Html.Label("Email:")
            @Html.TextBoxFor(m=>m.email, new { @class = "form-control" })

            @Html.Label("Description:")
            @Html.TextAreaFor(m=>m.description, new { @class = "form-control" })

            <br/>
            <input type="submit" class="btn btn-primary" value="Send" />
        }

然后在控制器中添加post方法以将数据保存到数据库

[httpPost]
public ActionResult Index(Contact model)
   {

    if (!ModelState.IsValid)
    {
         //write  the code  that saves to database
    }



    return View();
}

Answer 3

在模型中

public class Contact {
        public string name { get; set; }
        public string surname { get; set; }
        [EmailAddress(ErrorMessage = "Invalid Email Address")]
        public string email { get; set; }
        public string description{ get; set; }    
    }

在视图中（TextBox =＆gt; TextBoxFor）

 @model ProjectName.Models.Contact
    @using (Html.BeginForm("Index", "Upload", FormMethod.Post))
                {
                    @Html.Label("Name:")
                    @Html.TextBoxFor("name", null, new { @class = "form-control"})

                    @Html.Label("Surname:")
                    @Html.TextBoxFor("surname", null, new { @class = "form-control" })

                    @Html.Label("Email:")
                    @Html.TextBoxFor("email", null, new { @class = "form-control" })

                    @Html.Label("Description:")
                    @Html.TextBoxFor("description", null, new { @class = "form-control" })

                    <br/>
                    <input type="submit" class="btn btn-primary" value="Send" />
                }

在控制器

中

[httpPost]
public ActionResult Index(Contact model)
   {

    if (!ModelState.IsValid)
    {

    }      

    return View();
}

Answer 4

创建一个模型类。说

public class Contact{
    public string Name { get; set; }
    public string Phone { get; set; }
}

以下内容在构建后将模型导入视图，然后在控制器中指定[HttpPost]进行映射。然后，您的控制器可以处理视图提供的数据

ASP.NET MVC C＃将值添加到数据库中

4 个答案: