在某些情况下禁用必需的验证属性(Disable Required validation attribute under certain circumstances)

在某些情况下禁用必需的验证属性(Disable Required validation attribute under certain circumstances)

我想知道是否可以在某些控制器操作中禁用Required validation属性。 我想知道这一点，因为在我的一个编辑表单中，我不需要用户输入他们以前指定的字段的值。 然而，我然后实现逻辑，当他们输入一个值时，它使用一些特殊的逻辑来更新模型，例如哈希值等。

任何关于如何解决这个问题的意见？

编辑： 是的，客户端验证是一个问题，因为它不允许他们提交表单而不输入值。

I was wondering if it is possible to disable the Required validation attribute in certain controller actions. I am wondering this because on one of my edit forms I do not require the user to enter values for fields that they have already specified previously. However I then implement logic that when they enter a value it uses some special logic to update the model, such as hashing a value etc.

Any sugestions on how to get around this problem?

EDIT: And yes client validation is a problem here to, as it will not allow them to submit the form without entering a value.

最满意答案

使用视图模型可以很容易地解决这个问题。 视图模型是专门针对给定视图的需求量身定制的课程。 所以例如在你的情况下，你可以有以下视图模型：

public UpdateViewView { [Required] public string Id { get; set; } ... some other properties } public class InsertViewModel { public string Id { get; set; } ... some other properties }

这将在其对应的控制器操作中使用：

[HttpPost] public ActionResult Update(UpdateViewView model) { ... } [HttpPost] public ActionResult Insert(InsertViewModel model) { ... }

This problem can be easily solved by using view models. View models are classes that are specifically tailored to the needs of a given view. So for example in your case you could have the following view models:

public UpdateViewView { [Required] public string Id { get; set; } ... some other properties } public class InsertViewModel { public string Id { get; set; } ... some other properties }

which will be used in their corresponding controller actions:

[HttpPost] public ActionResult Update(UpdateViewView model) { ... } [HttpPost] public ActionResult Insert(InsertViewModel model) { ... }