C# 未将对象引用设置为对象（从视图调用 Razor 模型）
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Object Reference not set to an object (calling Razor model from View)
提问by ArjaaAine
Using C# MVC4
使用 C# MVC4
My View:
我的看法：
@using Universe.Models
@model UserModel
@section css {
<link href="@Url.Content("~/Content/assets/charcreation.css")" rel="stylesheet"/>}
@using (Html.BeginForm("AddUser","Home", FormMethod.Post))
{
<div class="row-fluid">
<table id="tblBio">
<tr>
<td class="span3">
<span class="labeltext">Alias:</span>
</td>
<td class="span5">
@Html.TextBox(Model.Alias)
</td>
<td class="span4">
<span class="ui-state-highlight hidden"></span>
</td>
</tr>
My Model:
我的型号：
public class UserModel
{
public int Id { get; set; }
public string Alias { get; set; }
public string Email { get; set; }
public string Password { get; set; }
public bool IsExternal { get; set; }
public UserModel()
{
}
public UserModel(User user)
{
if (user == null) return;
Alias = user.Alias;
}
}
But, I keep getting the error:
但是，我不断收到错误消息：
When I try to debug it, it doesn't even go into the Html.TextBoxmethod or into my model.
当我尝试调试它时，它甚至没有进入Html.TextBox方法或我的模型。
采纳答案by htxryan
Without seeing your controller action, my guess would be that your model is null.
没有看到您的控制器操作，我的猜测是您的模型为空。
In your controller, make sure you are passing an instance of the model to your view. For example:
在您的控制器中，确保您将模型的实例传递给您的视图。例如：
return View(new UserModel());
Instead of:
代替：
return View();
回答by imsurya
You have to pass your Modelin your ControllerAction when return the specific View
返回特定的时，您必须Model在您的ControllerAction 中传递View
return View(new Model());
