我想从视图中检索数据，并且所有值都为空C＃

Question

这是我的控制器的代码。

[HttpPost] 
    [ValidateAntiForgeryToken] 
    public ActionResult Save(Customer customer) 
    { 



     Page.db.Database.ExecuteSqlCommand("INSERT into Customer(Name, Email, PhoneNumber, Address, Quantity) VALUES(@Name, @Email, @PhoneNumber, @Address, @Quantity)", 
      new SqlParameter("@Name", customer.Name), 
      new SqlParameter("@Email", customer.Email), 
      new SqlParameter("@PhoneNumber", customer.PhoneNumber), 
      new SqlParameter("@Address", customer.Address), 
      new SqlParameter("@Quantity", customer.Quantity) 
      ); 

     Page.db.SaveChanges(); 

     return View(); 
    } 

这是我的视图代码。

@using (Html.BeginForm("Save", "Events")) 
{ 
    @Html.AntiForgeryToken() 

    <div class="form-horizontal buyer-info"> 
     <h1>Purchase</h1> 
     <hr /> 
     @Html.ValidationSummary(true, "", new { @class = "text-danger" }) 
     <div class="form-group"> 
      @Html.LabelFor(model => model.Customers.Name, htmlAttributes: new { @class = "control-label col-md-2" }) 
      <div class="col-md-10"> 
       @Html.EditorFor(model => model.Customers.Name, new { htmlAttributes = new { @class = "form-control" } }) 
       @Html.ValidationMessageFor(model => model.Customers.Name, "", new { @class = "text-danger" }) 
      </div> 
     </div> 

     <div class="form-group"> 
      @Html.LabelFor(model => model.Customers.Email, htmlAttributes: new { @class = "control-label col-md-2" }) 
      <div class="col-md-10"> 
       @Html.EditorFor(model => model.Customers.Email, new { htmlAttributes = new { @class = "form-control" } }) 
       @Html.ValidationMessageFor(model => model.Customers.Email, "", new { @class = "text-danger" }) 
      </div> 
     </div> 


     <div class="form-group"> 
      @Html.LabelFor(model => model.Customers.PhoneNumber, htmlAttributes: new { @class = "control-label col-md-2" }) 
      <div class="col-md-10"> 
       @Html.EditorFor(model => model.Customers.PhoneNumber, new { htmlAttributes = new { @class = "form-control" } }) 
       @Html.ValidationMessageFor(model => model.Customers.PhoneNumber, "", new { @class = "text-danger" }) 
      </div> 
     </div> 

     <div class="form-group"> 
      @Html.LabelFor(model => model.Customers.Address, htmlAttributes: new { @class = "control-label col-md-2" }) 
      <div class="col-md-10"> 
       @Html.EditorFor(model => model.Customers.Address, new { htmlAttributes = new { @class = "form-control" } }) 
       @Html.ValidationMessageFor(model => model.Customers.Address, "", new { @class = "text-danger" }) 
      </div> 
     </div> 

     <div class="form-group"> 
      @Html.LabelFor(model => model.Customers.Quantity, htmlAttributes: new { @class = "control-label col-md-2" }) 
      <div class="col-md-10"> 
       @Html.EditorFor(model => model.Customers.Quantity, new { htmlAttributes = new { min = 1, max = 5, @class = "form-control" } }) 
       @Html.ValidationMessageFor(model => model.Customers.Quantity, "", new { @class = "text-danger" }) 
      </div> 
     </div> 

     <div class="form-group"> 
      <div class="col-md-offset-2 col-md-10"> 
       <input type="submit" value="Create" class="btn btn-default" /> 
      </div> 
     </div> 
    </div> 

} 

我不知道我在做什么错的，因为我从我的观点提交的数据，但是当我在调试器中运行，

public ActionResult Save(Customer customer) 

“客户”将返回空值。

我第一次这样做，所以如果错误是明显的，请不要愤怒。

Answer 1

好了，所以基本上我控制器继承掉它有对象“页面”基地控制器。在这个对象中，我有这样的事情：

public Entities = new Entities(); 
    public Example1 Example { get; set; } 
    public Example2 Example { get; set; } 
    public Customer customer {get;set; } 

所以我在这里宣布所有的实体，所以我可以用这个来拉数据。 我在做什么是添加使用指令“使用ProjectName.Model.Customer”。但是，在我看来，我使用@model页面，因此我的代码不起作用的原因。

所以这就是我补充说的。

[HttpPost] 
    [ValidateAntiForgeryToken] 
    public ActionResult Save(Page page) 
    { 

     Page.db.Database.ExecuteSqlCommand("INSERT into Customer(Name, Email, PhoneNumber, Address, Quantity) VALUES(@Name, @Email, @PhoneNumber, @Address, @Quantity)", 
      new SqlParameter("@Name",page.customer.Name), 
      new SqlParameter("@Email", page.customer.Email), 
      new SqlParameter("@PhoneNumber", page.customer.PhoneNumber), 
      new SqlParameter("@Address", page.customer.Address), 
      new SqlParameter("@Quantity", page.customer.Quantity) 
      ); 

     Page.db.SaveChanges(); 

     return View(); 
    } 

所以，我做了什么是改变客户客户页面页，我没有改变视图。 DESPITE所有这些，当我运行它时，我得到了“对象引用不等于对象的实例”。所以我不得不补充这一点。

[HttpPost] 
    [ValidateAntiForgeryToken] 
    public ActionResult Save(Page page) 
    { 
     Page.Customers = page.Customers; 

     Page.db.Database.ExecuteSqlCommand("INSERT into Customer(Name, Email, PhoneNumber, Address, Quantity) VALUES(@Name, @Email, @PhoneNumber, @Address, @Quantity)", 
      new SqlParameter("@Name",page.customer.Name), 
      new SqlParameter("@Email", page.customer.Email), 
      new SqlParameter("@PhoneNumber", page.customer.PhoneNumber), 
      new SqlParameter("@Address", page.customer.Address), 
      new SqlParameter("@Quantity", page.customer.Quantity) 
      ); 

     Page.db.SaveChanges(); 

     return View(); 
    } 

正如你可能知道我加入 Page.Customers = page.Customers;然后当我跑了它的所有工作代码和幸福的日子。感谢所有的帮助。

Answer 2

FormMethod.Post u必须在剃刀helpe添加

@using (Html.BeginForm("Save", "Events",FormMethod.Post))